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- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_is_invocable">is_invocable</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_is_lvalue_reference_member">is_lvalue_reference_member</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_is_reference_member">is_reference_member</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_is_rvalue_reference_member">is_rvalue_reference_member</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_is_noexcept">is_noexcept</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_is_transaction_safe">is_transaction_safe</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_is_volatile_member">is_volatile_member</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_qualified_class_of">qualified_class_of</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_remove_member_const">remove_member_const</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_remove_member_cv">remove_member_cv</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_remove_member_reference">remove_member_reference</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_remove_member_volatile">remove_member_volatile</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_remove_noexcept">remove_noexcept</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_remove_transaction_safe">remove_transaction_safe</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_remove_varargs">remove_varargs</a></span></dt>
- <dt><span class="section"><a href="reference.html#callable_traits.reference.ref_return_type">return_type</a></span></dt>
- </dl></div>
- <p>
- This reference will be most beneficial to readers familiar with the following
- C++ topics:
- </p>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <a href="http://en.cppreference.com/w/cpp/language/partial_specialization" target="_top">template
- specializations</a>
- </li>
- <li class="listitem">
- <a href="http://en.cppreference.com/w/cpp/language/sfinae" target="_top">SFINAE</a>
- </li>
- <li class="listitem">
- <a href="http://en.cppreference.com/w/cpp/utility/functional/invoke" target="_top"><code class="literal"><span class="emphasis"><em>INVOKE</em></span></code></a>
- rules
- </li>
- <li class="listitem">
- function types
- </li>
- <li class="listitem">
- <a href="http://en.cppreference.com/w/cpp/language/pointer#Pointers_to_functions" target="_top">function
- pointers</a>
- </li>
- <li class="listitem">
- <a href="http://stackoverflow.com/questions/480248/function-references" target="_top">function
- references</a>
- </li>
- <li class="listitem">
- <a href="http://en.cppreference.com/w/cpp/language/pointer#Pointers_to_member_functions" target="_top">pointers
- to member functions</a> (a.k.a. PMFs)
- </li>
- <li class="listitem">
- <a href="http://en.cppreference.com/w/cpp/language/pointer#Pointers_to_data_members" target="_top">pointers
- to data members</a> (a.k.a. PMDs)
- </li>
- <li class="listitem">
- <a href="http://en.cppreference.com/w/cpp/language/operators#Function_call_operator" target="_top">the
- function call operator, <code class="literal">operator()</code></a>
- </li>
- <li class="listitem">
- <a href="https://isocpp.org/blog/2012/11/universal-references-in-c11-scott-meyers" target="_top">universal
- references</a> and <a href="http://stackoverflow.com/questions/13725747/concise-explanation-of-reference-collapsing-rules-requested-1-a-a-2" target="_top">reference
- collapsing rules</a>
- </li>
- <li class="listitem">
- <a href="http://en.cppreference.com/w/cpp/language/member_functions#const-.2C_volatile-.2C_and_ref-qualified_member_functions" target="_top">cv-qualified
- and ref-qualified member functions</a>
- </li>
- <li class="listitem">
- <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/p0172r0.html" target="_top">"abominable"
- function types</a>
- </li>
- <li class="listitem">
- <a href="http://en.cppreference.com/w/c/language/variadic" target="_top">C-style variadics</a>,
- a.k.a. varargs
- </li>
- </ul></div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_add_member_const"></a><a class="link" href="reference.html#callable_traits.reference.ref_add_member_const" title="add_member_const">add_member_const</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_const.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_const.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_const.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_member_const</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_add_member_const.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_const.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_const.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">add_member_const_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">add_member_const</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">add_member_const_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_add_member_const.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_const.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_const.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be a function
- type or a member function pointer type
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_const.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_const.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_const.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Adds a member <code class="computeroutput"><span class="keyword">const</span></code> qualifier
- to <code class="computeroutput"><span class="identifier">T</span></code>, if not already
- present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_const.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_const.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_const.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">add_member_const_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_const.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_const.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_const.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_member_const</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span> <span class="special">{};</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)();</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_const_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="comment">// add_member_const_t doesn't change anything when</span>
- <span class="comment">// the function type is already const.</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_const_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">volatile</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_const_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="comment">// add_member_const_t can also be used with "abominable"</span>
- <span class="comment">// function types.</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">();</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_const_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_add_member_cv"></a><a class="link" href="reference.html#callable_traits.reference.ref_add_member_cv" title="add_member_cv">add_member_cv</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_cv.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_cv.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_cv.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_member_cv</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_add_member_cv.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_cv.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_cv.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">add_member_cv_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">add_member_cv</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">add_member_cv_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_add_member_cv.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_cv.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_cv.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be a function
- type or a member function pointer type
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_cv.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_cv.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_cv.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Adds member <code class="computeroutput"><span class="keyword">const</span></code> and <code class="computeroutput"><span class="keyword">volatile</span></code> qualifiers to <code class="computeroutput"><span class="identifier">T</span></code>,
- if not already present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_cv.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_cv.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_cv.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">add_member_cv_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_cv.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_cv.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_cv.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_member_cv</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span> <span class="special">{};</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)();</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_cv_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="comment">// add_member_cv_t doesn't change anything when</span>
- <span class="comment">// the function type is already cv-qualified.</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_cv_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">volatile</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_cv_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="comment">// add_member_cv_t can also be used with "abominable"</span>
- <span class="comment">// function types.</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">();</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">()</span> <span class="keyword">const</span> <span class="keyword">volatile</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_cv_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_add_member_lvalue_reference"></a><a class="link" href="reference.html#callable_traits.reference.ref_add_member_lvalue_reference" title="add_member_lvalue_reference">add_member_lvalue_reference</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_lvalue_reference.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_lvalue_reference.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_lvalue_reference.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_member_lvalue_reference</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_add_member_lvalue_reference.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_lvalue_reference.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_lvalue_reference.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">add_member_lvalue_reference_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">add_member_lvalue_reference</span>
- <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">add_member_lvalue_reference_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_add_member_lvalue_reference.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_lvalue_reference.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_lvalue_reference.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be a function
- type or a member function pointer type
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_lvalue_reference.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_lvalue_reference.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_lvalue_reference.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Adds a member lvalue reference qualifier (<code class="computeroutput"><span class="special">&</span></code>)
- to <code class="computeroutput"><span class="identifier">T</span></code>, if not already
- present.
- </li>
- <li class="listitem">
- If an rvalue reference qualifier is present, the lvalue reference qualifier
- replaces it (in accordance with reference collapsing rules).
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_lvalue_reference.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_lvalue_reference.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_lvalue_reference.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">add_member_lvalue_reference_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span> <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_lvalue_reference.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_lvalue_reference.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_lvalue_reference.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_member_lvalue_reference</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span> <span class="special">{};</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)();</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_lvalue_reference_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="comment">// add_member_lvalue_reference_t doesn't change anything when</span>
- <span class="comment">// the function type already has an lvalue qualifier.</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_lvalue_reference_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="comment">// add_member_lvalue_reference_t models C++11 reference collapsing</span>
- <span class="comment">// rules, so that adding an lvalue qualifier to an</span>
- <span class="comment">// rvalue-qualified type will force the lvalue.</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_lvalue_reference_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="comment">// add_member_lvalue_reference_t can also be used to create "abominable"</span>
- <span class="comment">// function types.</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">();</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">()</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_lvalue_reference_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_add_member_rvalue_reference"></a><a class="link" href="reference.html#callable_traits.reference.ref_add_member_rvalue_reference" title="add_member_rvalue_reference">add_member_rvalue_reference</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_rvalue_reference.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_rvalue_reference.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_rvalue_reference.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_member_rvalue_reference</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_add_member_rvalue_reference.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_rvalue_reference.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_rvalue_reference.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">add_member_rvalue_reference_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">add_member_rvalue_reference</span>
- <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">add_member_rvalue_reference_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_add_member_rvalue_reference.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_rvalue_reference.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_rvalue_reference.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be a function
- type or a member function pointer type
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_rvalue_reference.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_rvalue_reference.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_rvalue_reference.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Adds a member rvalue reference qualifier (<code class="computeroutput"><span class="special">&&</span></code>)
- to <code class="computeroutput"><span class="identifier">T</span></code>, if not already
- present.
- </li>
- <li class="listitem">
- If an lvalue reference qualifier is present, the lvalue reference qualifier
- remains (in accordance with reference collapsing rules).
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_rvalue_reference.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_rvalue_reference.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_rvalue_reference.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">add_member_rvalue_reference_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span> <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_rvalue_reference.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_rvalue_reference.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_rvalue_reference.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_member_rvalue_reference</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span> <span class="special">{};</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)();</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_rvalue_reference_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="comment">// add_member_rvalue_reference_t doesn't change anything when</span>
- <span class="comment">// the function type already has an rvalue qualifier.</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_rvalue_reference_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="comment">// add_member_rvalue_reference_t models C++11 reference collapsing</span>
- <span class="comment">// rules, so that adding an rvalue qualifier to an</span>
- <span class="comment">// lvalue-qualified type will not change anything.</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_rvalue_reference_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="comment">// add_member_rvalue_reference_t can also be used with "abominable"</span>
- <span class="comment">// function types.</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_rvalue_reference_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_add_member_volatile"></a><a class="link" href="reference.html#callable_traits.reference.ref_add_member_volatile" title="add_member_volatile">add_member_volatile</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_volatile.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_volatile.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_volatile.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_member_volatile</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_add_member_volatile.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_volatile.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_volatile.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">add_member_volatile_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">add_member_volatile</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">add_member_volatile_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_add_member_volatile.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_volatile.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_volatile.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be a function
- type or a member function pointer type
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_volatile.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_volatile.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_volatile.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Adds a member volatile qualifier to <code class="computeroutput"><span class="identifier">T</span></code>,
- if not already present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_volatile.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_volatile.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_volatile.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">add_member_volatile_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span> <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span> <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span> <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_add_member_volatile.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_member_volatile.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_member_volatile.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_member_volatile</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span> <span class="special">{};</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)();</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">volatile</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_volatile_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="comment">// add_member_volatile_t doesn't change anything when</span>
- <span class="comment">// the function type is already volatile.</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">volatile</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">volatile</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_volatile_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_volatile_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="comment">// add_member_volatile_t can also be used with "abominable"</span>
- <span class="comment">// function types.</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">();</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">()</span> <span class="keyword">volatile</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_member_volatile_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_add_noexcept"></a><a class="link" href="reference.html#callable_traits.reference.ref_add_noexcept" title="add_noexcept">add_noexcept</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_add_noexcept.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_noexcept.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_noexcept.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_noexcept</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_add_noexcept.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_noexcept.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_noexcept.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">add_noexcept_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">add_noexcept</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">add_noexcept_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_add_noexcept.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_noexcept.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_noexcept.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be one of the
- following:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- function type
- </li>
- <li class="listitem">
- function pointer type
- </li>
- <li class="listitem">
- function reference type
- </li>
- <li class="listitem">
- member function pointer type
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_noexcept.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_noexcept.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_noexcept.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Adds a <code class="computeroutput"><span class="keyword">noexcept</span></code> specifier
- to <code class="computeroutput"><span class="identifier">T</span></code>, if not already
- present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_noexcept.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_noexcept.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_noexcept.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">add_noexcept_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span> <span class="keyword">noexcept</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span> <span class="keyword">noexcept</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="identifier">transaction_safe</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_add_noexcept.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_noexcept.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_noexcept.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_noexcept</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">::</span><span class="identifier">add_noexcept_t</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span>
- <span class="identifier">add_noexcept_t</span><span class="special"><</span><span class="keyword">int</span><span class="special">()>,</span>
- <span class="keyword">int</span><span class="special">()</span> <span class="keyword">noexcept</span>
- <span class="special">>{},</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_add_transaction_safe"></a><a class="link" href="reference.html#callable_traits.reference.ref_add_transaction_safe" title="add_transaction_safe">add_transaction_safe</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_add_transaction_safe.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_transaction_safe.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_transaction_safe.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_transaction_safe</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_add_transaction_safe.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_transaction_safe.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_transaction_safe.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">add_transaction_safe_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">add_transaction_safe</span>
- <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">add_transaction_safe_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_add_transaction_safe.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_transaction_safe.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_transaction_safe.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be one of the
- following:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- function type
- </li>
- <li class="listitem">
- function pointer type
- </li>
- <li class="listitem">
- function reference type
- </li>
- <li class="listitem">
- member function pointer type
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_transaction_safe.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_transaction_safe.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_transaction_safe.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Adds the <code class="computeroutput"><span class="identifier">transaction_safe</span></code>
- specifier to <code class="computeroutput"><span class="identifier">T</span></code>, if not
- already present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_transaction_safe.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_transaction_safe.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_transaction_safe.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">add_transaction_safe_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span> <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span> <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_add_transaction_safe.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_transaction_safe.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_transaction_safe.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_transaction_safe</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">::</span><span class="identifier">add_transaction_safe_t</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">not_safe</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">();</span>
- <span class="keyword">using</span> <span class="identifier">safe</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">()</span> <span class="identifier">transaction_safe</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">safe_added</span> <span class="special">=</span> <span class="identifier">add_transaction_safe_t</span><span class="special"><</span><span class="identifier">not_safe</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">safe</span><span class="special">,</span> <span class="identifier">safe_added</span><span class="special">>{},</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_add_varargs"></a><a class="link" href="reference.html#callable_traits.reference.ref_add_varargs" title="add_varargs">add_varargs</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_add_varargs.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_varargs.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_varargs.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_varargs</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_add_varargs.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_varargs.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_varargs.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">add_varargs_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">add_varargs</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">add_varargs_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_add_varargs.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_varargs.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_varargs.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be one of the
- following:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- function type
- </li>
- <li class="listitem">
- function pointer type
- </li>
- <li class="listitem">
- function reference type
- </li>
- <li class="listitem">
- member function pointer type
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_varargs.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_varargs.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_varargs.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Adds C-style variadics (<code class="computeroutput"><span class="special">...</span></code>)
- to the signature of <code class="computeroutput"><span class="identifier">T</span></code>,
- if not already present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_add_varargs.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_varargs.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_varargs.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">add_varargs_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(...)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="special">...)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)(...)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)(...)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)(...)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)(...)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_add_varargs.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_add_varargs.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_add_varargs.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">add_varargs</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span> <span class="special">{};</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">);</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="special">...);</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_varargs_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">fp</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(*)();</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(*)(...);</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_varargs_t</span><span class="special"><</span><span class="identifier">fp</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">fr</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(&)(</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*);</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(&)(</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*,</span> <span class="special">...);</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_varargs_t</span><span class="special"><</span><span class="identifier">fr</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_varargs_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="comment">// add_varargs_t doesn't change anything when</span>
- <span class="comment">// the type already has varargs.</span>
- <span class="keyword">using</span> <span class="identifier">twice</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">add_varargs_t</span><span class="special"><</span><span class="identifier">test</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">twice</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_apply_member_pointer"></a><a class="link" href="reference.html#callable_traits.reference.ref_apply_member_pointer" title="apply_member_pointer">apply_member_pointer</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_apply_member_pointer.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_apply_member_pointer.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_apply_member_pointer.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">apply_member_pointer</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_apply_member_pointer.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_apply_member_pointer.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_apply_member_pointer.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">C</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">apply_member_pointer_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">C</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">apply_member_pointer</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">apply_member_pointer_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">C</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_apply_member_pointer.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_apply_member_pointer.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_apply_member_pointer.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> may be any type except
- <code class="computeroutput"><span class="keyword">void</span></code>
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">C</span></code> must be a user-defined
- type
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_apply_member_pointer.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_apply_member_pointer.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_apply_member_pointer.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a function,
- function pointer (unqualified), or function reference, then the aliased
- type is a member function pointer of <code class="computeroutput"><span class="identifier">C</span></code>
- with the same parameters and return type.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a member function
- pointer (unqualified) of any type, the aliased type is a member function
- pointer of <code class="computeroutput"><span class="identifier">C</span></code> with the
- same parameters and return type.
- </li>
- <li class="listitem">
- Otherwise, the aliased type is a member data pointer equivalent to <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">remove_reference_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="identifier">C</span><span class="special">::*</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_apply_member_pointer.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_apply_member_pointer.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_apply_member_pointer.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">apply_member_pointer_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">bar</span><span class="special">::*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">bar</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">bar</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">bar</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">bar</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">bar</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*</span><span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*</span><span class="keyword">const</span> <span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_apply_member_pointer.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_apply_member_pointer.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_apply_member_pointer.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">apply_member_pointer</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">bar</span><span class="special">;</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="comment">// function type -> member function pointer type</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="keyword">int</span><span class="special">);</span>
- <span class="keyword">using</span> <span class="identifier">g</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">apply_member_pointer_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">>;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(</span><span class="keyword">int</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">g</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">{</span>
- <span class="comment">// function pointer type (unqualified) -> member function pointer type</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(*)();</span>
- <span class="keyword">using</span> <span class="identifier">g</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">apply_member_pointer_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">>;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)();</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">g</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">{</span>
- <span class="comment">// function pointer type (qualified) -> member data pointer type</span>
- <span class="comment">// Look out for cases like these two. If the input type to apply_member_pointer</span>
- <span class="comment">// is a <span class="bold"><strong>qualified</strong></span> function pointer type, then the aliased type is a member data</span>
- <span class="comment">// pointer to a <span class="bold"><strong>qualified function pointer</strong></span>.</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(*&)();</span>
- <span class="keyword">using</span> <span class="identifier">g</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">apply_member_pointer_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">>;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span> <span class="special">(*</span> <span class="identifier">foo</span><span class="special">::*)();</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">g</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(*</span> <span class="keyword">const</span><span class="special">)();</span>
- <span class="keyword">using</span> <span class="identifier">g</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">apply_member_pointer_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">>;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span> <span class="special">(*</span> <span class="keyword">const</span> <span class="identifier">foo</span><span class="special">::*)();</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">g</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- <span class="special">{</span>
- <span class="comment">// function reference type -> member function pointer type</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(&)();</span>
- <span class="keyword">using</span> <span class="identifier">g</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">apply_member_pointer_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">>;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)();</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">g</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">{</span>
- <span class="comment">// member function pointer type -> member function pointer type</span>
- <span class="comment">// (note the different parent class)</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">bar</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">g</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">apply_member_pointer_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">>;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">g</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">{</span>
- <span class="comment">// non-callable type -> member data pointer type</span>
- <span class="keyword">using</span> <span class="identifier">g</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">apply_member_pointer_t</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">>;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">g</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">{</span>
- <span class="comment">// function object type -> member data pointer type</span>
- <span class="comment">// the same is true for lambdas and generic lambdas</span>
- <span class="keyword">auto</span> <span class="identifier">lambda</span> <span class="special">=</span> <span class="special">[](){};</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">decltype</span><span class="special">(</span><span class="identifier">lambda</span><span class="special">);</span>
- <span class="keyword">using</span> <span class="identifier">g</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">apply_member_pointer_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">,</span> <span class="identifier">foo</span><span class="special">>;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="identifier">f</span> <span class="identifier">foo</span><span class="special">::*;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">g</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_apply_return"></a><a class="link" href="reference.html#callable_traits.reference.ref_apply_return" title="apply_return">apply_return</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_apply_return.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_apply_return.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_apply_return.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">apply_return</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_apply_return.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_apply_return.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_apply_return.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">R</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">apply_return_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">R</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">apply_return</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">apply_return_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">R</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_apply_return.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_apply_return.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_apply_return.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must one of the following:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span></code> template instantiation
- </li>
- <li class="listitem">
- function
- </li>
- <li class="listitem">
- function pointer
- </li>
- <li class="listitem">
- function reference
- </li>
- <li class="listitem">
- member function pointer
- </li>
- <li class="listitem">
- member data pointer
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_apply_return.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_apply_return.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_apply_return.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="identifier">Args</span><span class="special">...></span></code>,
- the aliased type is <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="identifier">Args</span><span class="special">...)</span></code>.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a function,
- function pointer, function reference, or member function pointer, the
- aliased type's return type is <code class="computeroutput"><span class="identifier">R</span></code>,
- but is otherwise identical to <code class="computeroutput"><span class="identifier">T</span></code>.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a member data
- pointer of class <code class="computeroutput"><span class="identifier">foo</span></code>
- to a <code class="computeroutput"><span class="identifier">U</span></code> type (such that
- <code class="computeroutput"><span class="identifier">T</span></code> is <code class="computeroutput"><span class="identifier">U</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>),
- the aliased type is <code class="computeroutput"><span class="identifier">R</span> <span class="identifier">foo</span><span class="special">::*</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_apply_return.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_apply_return.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_apply_return.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">apply_return_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="keyword">float</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">></span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span><span class="special">()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span><span class="special">(&)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span><span class="special">(*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)(...)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span><span class="special">(*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*</span><span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_apply_return.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_apply_return.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_apply_return.example_program">Example
- Program</a>
- </h5>
- <p>
- [apply_return]
- </p>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_args"></a><a class="link" href="reference.html#callable_traits.reference.ref_args" title="args">args</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_args.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_args.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_args.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">args</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_args.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_args.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_args.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span><span class="special">...></span> <span class="keyword">class</span> <span class="identifier">Container</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">args_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span><span class="special">...></span> <span class="keyword">class</span> <span class="identifier">Container</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">args</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">args_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span> <span class="identifier">Container</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_args.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_args.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_args.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be one of the
- following:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- function
- </li>
- <li class="listitem">
- function pointer
- </li>
- <li class="listitem">
- function reference
- </li>
- <li class="listitem">
- member function pointer
- </li>
- <li class="listitem">
- member data pointer
- </li>
- <li class="listitem">
- user-defined type with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>
- </li>
- <li class="listitem">
- type of a non-generic lambda
- </li>
- </ul></div>
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_args.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_args.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_args.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- When the constraints are violated, a substitution failure occurs.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a function,
- function pointer, or function reference, the aliased type is <code class="computeroutput"><span class="identifier">Container</span></code> instantiated with the function's
- parameter types.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object, the aliased type is <code class="computeroutput"><span class="identifier">Container</span></code>
- instantiated with the <code class="computeroutput"><span class="identifier">T</span><span class="special">::</span><span class="keyword">operator</span><span class="special">()</span></code> parameter types.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a member function
- pointer, the aliased type is a <code class="computeroutput"><span class="identifier">Container</span></code>
- instantiation, where the first type argument is a reference to the parent
- class of <code class="computeroutput"><span class="identifier">T</span></code>, qualified
- according to the member qualifiers on <code class="computeroutput"><span class="identifier">T</span></code>,
- such that the first type is equivalent to <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">::</span><span class="identifier">qualified_class_of_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>. The subsequent type arguments, if
- any, are the parameter types of the member function.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a member data
- pointer, the aliased type is <code class="computeroutput"><span class="identifier">Container</span></code>
- with a single element, which is a <code class="computeroutput"><span class="keyword">const</span></code>
- reference to the parent class of <code class="computeroutput"><span class="identifier">T</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_args.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_args.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_args.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">args_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">float</span><span class="special">,</span>
- <span class="keyword">char</span><span class="special">,</span>
- <span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">float</span><span class="special">,</span>
- <span class="keyword">char</span><span class="special">,</span>
- <span class="keyword">int</span><span class="special">></span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(*)(</span><span class="keyword">float</span><span class="special">,</span>
- <span class="keyword">char</span><span class="special">,</span>
- <span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">float</span><span class="special">,</span>
- <span class="keyword">char</span><span class="special">,</span>
- <span class="keyword">int</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(&)(</span><span class="keyword">float</span><span class="special">,</span>
- <span class="keyword">char</span><span class="special">,</span>
- <span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">float</span><span class="special">,</span>
- <span class="keyword">char</span><span class="special">,</span>
- <span class="keyword">int</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">float</span><span class="special">,</span>
- <span class="keyword">char</span><span class="special">,</span>
- <span class="keyword">int</span><span class="special">)</span>
- <span class="keyword">const</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">float</span><span class="special">,</span>
- <span class="keyword">char</span><span class="special">,</span>
- <span class="keyword">int</span><span class="special">></span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><></span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span> <span class="special">&)(</span><span class="keyword">float</span><span class="special">,</span>
- <span class="keyword">char</span><span class="special">,</span>
- <span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="identifier">foo</span><span class="special">&,</span>
- <span class="keyword">float</span><span class="special">,</span>
- <span class="keyword">char</span><span class="special">,</span>
- <span class="keyword">int</span><span class="special">></span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(</span><span class="keyword">int</span><span class="special">)</span> <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">const</span> <span class="identifier">foo</span><span class="special">&,</span> <span class="keyword">int</span><span class="special">></span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">volatile</span> <span class="identifier">foo</span>
- <span class="special">&&></span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">const</span> <span class="identifier">foo</span><span class="special">&></span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">const</span> <span class="identifier">foo</span><span class="special">&></span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*</span><span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_args.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_args.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_args.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">memory</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Expect</span><span class="special">></span>
- <span class="keyword">void</span> <span class="identifier">test</span><span class="special">(){</span>
- <span class="keyword">using</span> <span class="identifier">args_t</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">args_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">args_t</span><span class="special">,</span> <span class="identifier">Expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="keyword">auto</span> <span class="identifier">lamda</span> <span class="special">=</span> <span class="special">[](</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*){};</span>
- <span class="keyword">using</span> <span class="identifier">lam</span> <span class="special">=</span> <span class="keyword">decltype</span><span class="special">(</span><span class="identifier">lamda</span><span class="special">);</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*>;</span>
- <span class="identifier">test</span><span class="special"><</span><span class="identifier">lam</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>();</span>
- <span class="special">}</span>
- <span class="special">{</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*);</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="identifier">foo</span><span class="special">&,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*>;</span>
- <span class="identifier">test</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>();</span>
- <span class="special">}</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">function_ptr</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(*)(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*);</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*>;</span>
- <span class="identifier">test</span><span class="special"><</span><span class="identifier">function_ptr</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>();</span>
- <span class="special">}</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">function_ref</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(&)(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*);</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*>;</span>
- <span class="identifier">test</span><span class="special"><</span><span class="identifier">function_ref</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>();</span>
- <span class="special">}</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">function</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*);</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*>;</span>
- <span class="identifier">test</span><span class="special"><</span><span class="identifier">function</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>();</span>
- <span class="special">}</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">abominable</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*)</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special"><</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*>;</span>
- <span class="identifier">test</span><span class="special"><</span><span class="identifier">abominable</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>();</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_class_of"></a><a class="link" href="reference.html#callable_traits.reference.ref_class_of" title="class_of">class_of</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_class_of.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_class_of.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_class_of.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">class_of</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_class_of.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_class_of.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_class_of.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">class_of_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">class_of</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">class_of_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_class_of.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_class_of.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_class_of.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be a member pointer
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_class_of.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_class_of.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_class_of.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- The aliased type is the parent class of the member. In other words, if
- <code class="computeroutput"><span class="identifier">T</span></code> is expanded to <code class="computeroutput"><span class="identifier">U</span> <span class="identifier">C</span><span class="special">::*</span></code>, the aliased type is <code class="computeroutput"><span class="identifier">C</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_class_of.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_class_of.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_class_of.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">class_of_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">foo</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span> <span class="special">&)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">foo</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_class_of.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_class_of.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_class_of.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">class_of</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">foo</span><span class="special">,</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">class_of_t</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()>>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">foo</span><span class="special">,</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">class_of_t</span><span class="special"><</span><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*>>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_function_type"></a><a class="link" href="reference.html#callable_traits.reference.ref_function_type" title="function_type">function_type</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_function_type.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_function_type.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_function_type.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">function_type</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_function_type.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_function_type.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_function_type.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">function_type_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">function_type</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">function_type_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_function_type.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_function_type.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_function_type.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be one of the
- following:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- function
- </li>
- <li class="listitem">
- function pointer
- </li>
- <li class="listitem">
- function reference
- </li>
- <li class="listitem">
- member function pointer
- </li>
- <li class="listitem">
- member data pointer
- </li>
- <li class="listitem">
- user-defined type with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>
- </li>
- <li class="listitem">
- type of a non-generic lambda
- </li>
- </ul></div>
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_function_type.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_function_type.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_function_type.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- When the constraints are violated, a substitution failure occurs.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a function,
- the aliased type is identical to <code class="computeroutput"><span class="identifier">T</span></code>,
- except that the aliased function type will not have member qualifiers
- or the <code class="computeroutput"><span class="identifier">transaction_safe</span></code>
- specifier.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a function
- pointer, the aliased type is equivalent to <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">remove_pointer_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a function
- reference, the aliased type is equivalent to <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">remove_reference_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object, the aliased type is a function type with the same return type
- and parameter list as <code class="computeroutput"><span class="identifier">T</span></code>'s
- <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a member function
- pointer, the aliased type is a function type with the same return type
- as <code class="computeroutput"><span class="identifier">T</span></code>, and the first parameter
- is a reference to the parent class of <code class="computeroutput"><span class="identifier">T</span></code>,
- qualified according to the member qualifiers on <code class="computeroutput"><span class="identifier">T</span></code>.
- The subsequent parameters, if any, are the parameter types of <code class="computeroutput"><span class="identifier">T</span></code>.
- </li>
- <li class="listitem">
- When <code class="computeroutput"><span class="identifier">T</span></code> is a member data
- pointer, the aliased type is a function type returning the underlying
- member type of <code class="computeroutput"><span class="identifier">T</span></code>, taking
- a single parameter, which is a <code class="computeroutput"><span class="keyword">const</span></code>
- reference to the parent type of <code class="computeroutput"><span class="identifier">T</span></code>.
- </li>
- <li class="listitem">
- In all cases, the aliased function type will not have member qualifiers,
- and will not have the <code class="computeroutput"><span class="identifier">transaction_safe</span></code>
- specifier.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_function_type.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_function_type.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_function_type.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">function_type_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span> <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span> <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(*</span><span class="keyword">const</span> <span class="special">&)(</span><span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(&)(</span><span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(*</span>
- <span class="keyword">volatile</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(</span><span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">&,</span>
- <span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(</span><span class="keyword">int</span><span class="special">)</span> <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">foo</span><span class="special">&,</span> <span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">volatile</span> <span class="identifier">foo</span><span class="special">&&)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">foo</span><span class="special">&)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">foo</span><span class="special">&)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_function_type.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_function_type.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_function_type.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">void</span> <span class="identifier">test</span><span class="special">(){</span>
- <span class="comment">// this example shows how boost::callable_traits::function_type_t</span>
- <span class="comment">// bevaves consistently for many different types</span>
- <span class="keyword">using</span> <span class="identifier">type</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">function_type_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">>;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">expect</span><span class="special">,</span> <span class="identifier">type</span><span class="special">>{},</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="keyword">auto</span> <span class="identifier">lamda</span> <span class="special">=</span> <span class="special">[](</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*){};</span>
- <span class="keyword">using</span> <span class="identifier">lam</span> <span class="special">=</span> <span class="keyword">decltype</span><span class="special">(</span><span class="identifier">lamda</span><span class="special">);</span>
- <span class="identifier">test</span><span class="special"><</span><span class="identifier">lam</span><span class="special">>();</span>
- <span class="keyword">using</span> <span class="identifier">function_ptr</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(*)(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*);</span>
- <span class="identifier">test</span><span class="special"><</span><span class="identifier">function_ptr</span><span class="special">>();</span>
- <span class="keyword">using</span> <span class="identifier">function_ref</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(&)(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*);</span>
- <span class="identifier">test</span><span class="special"><</span><span class="identifier">function_ref</span><span class="special">>();</span>
- <span class="keyword">using</span> <span class="identifier">function</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*);</span>
- <span class="identifier">test</span><span class="special"><</span><span class="identifier">function</span><span class="special">>();</span>
- <span class="keyword">using</span> <span class="identifier">abominable</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&,</span> <span class="keyword">const</span> <span class="keyword">char</span><span class="special">*)</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="identifier">test</span><span class="special"><</span><span class="identifier">abominable</span><span class="special">>();</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_has_member_qualifiers"></a><a class="link" href="reference.html#callable_traits.reference.ref_has_member_qualifiers" title="has_member_qualifiers">has_member_qualifiers</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_has_member_qualifiers.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_member_qualifiers.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_member_qualifiers.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">has_member_qualifiers</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_has_member_qualifiers.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_member_qualifiers.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_member_qualifiers.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">has_member_qualifiers</span><span class="special">;</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">has_member_qualifiers_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_has_member_qualifiers.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_member_qualifiers.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_member_qualifiers.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- none
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_has_member_qualifiers.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_member_qualifiers.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_member_qualifiers.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">false_type</span></code> is inherited by <code class="computeroutput"><span class="identifier">has_member_qualifiers</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- and is aliased by <code class="computeroutput"><span class="keyword">typename</span> <span class="identifier">has_member_qualifiers</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">type</span></code>, except when one of the following
- criteria is met, in which case <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">true_type</span></code>
- would be similarly inherited and aliased:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- with member qualifiers
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a member function
- pointer with member qualifiers
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object with a member-qualified <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- On compilers that support variable templates, <code class="computeroutput"><span class="identifier">has_member_qualifiers_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> is equivalent to <code class="computeroutput"><span class="identifier">has_member_qualifiers</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_has_member_qualifiers.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_member_qualifiers.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_member_qualifiers.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">has_member_qualifiers_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">()</span>
- <span class="keyword">volatile</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*&)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(*&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_has_member_qualifiers.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_member_qualifiers.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_member_qualifiers.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">has_member_qualifiers</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">has_member_qualifiers</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">has_member_qualifiers</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">volatile</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">has_member_qualifiers</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_has_varargs"></a><a class="link" href="reference.html#callable_traits.reference.ref_has_varargs" title="has_varargs">has_varargs</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_has_varargs.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_varargs.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_varargs.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">has_varargs</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_has_varargs.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_varargs.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_varargs.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">has_varargs</span><span class="special">;</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">has_varargs_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_has_varargs.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_varargs.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_varargs.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- none
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_has_varargs.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_varargs.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_varargs.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">false_type</span></code> is inherited by <code class="computeroutput"><span class="identifier">has_varargs</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- and is aliased by <code class="computeroutput"><span class="keyword">typename</span> <span class="identifier">has_varargs</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">type</span></code>, except when one of the following
- criteria is met, in which case <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">true_type</span></code>
- would be similarly inherited and aliased:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function,
- function pointer, or function reference where the function's parameter
- list includes C-style variadics.
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a pointer
- to a member function with C-style variadics in the parameter list.
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>, which has C-style variadics
- in the parameter list of its <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>.
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- On compilers that support variable templates, <code class="computeroutput"><span class="identifier">has_varargs_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> is equivalent to <code class="computeroutput"><span class="identifier">has_varargs</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_has_varargs.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_varargs.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_varargs.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">has_varargs_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(...)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="special">...)</span> <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(*</span>
- <span class="keyword">volatile</span><span class="special">)(...)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(&)(...)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(*&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_has_varargs.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_varargs.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_varargs.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">has_varargs</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">has_varargs</span><span class="special"><</span><span class="keyword">int</span><span class="special">(...)>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">has_varargs</span><span class="special"><</span><span class="keyword">int</span><span class="special">()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_has_void_return"></a><a class="link" href="reference.html#callable_traits.reference.ref_has_void_return" title="has_void_return">has_void_return</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_has_void_return.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_void_return.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_void_return.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">has_void_return</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_has_void_return.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_void_return.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_void_return.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">has_void_return</span><span class="special">;</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">has_void_return_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_has_void_return.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_void_return.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_void_return.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- none
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_has_void_return.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_void_return.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_void_return.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">false_type</span></code> is inherited by <code class="computeroutput"><span class="identifier">has_void_return</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- and is aliased by <code class="computeroutput"><span class="keyword">typename</span> <span class="identifier">has_void_return</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">type</span></code>, except when one of the following
- criteria is met, in which case <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">true_type</span></code>
- would be similarly inherited and aliased:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function,
- function pointer, or function reference where the function's return
- type is <code class="computeroutput"><span class="keyword">void</span></code>.
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a pointer
- to a member function whose return type is <code class="computeroutput"><span class="keyword">void</span></code>.
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>, where the <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code> function returns <code class="computeroutput"><span class="keyword">void</span></code>.
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- On compilers that support variable templates, <code class="computeroutput"><span class="identifier">has_void_return_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> is equivalent to <code class="computeroutput"><span class="identifier">has_void_return</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_has_void_return.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_void_return.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_void_return.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">has_void_return_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span> <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(*</span>
- <span class="keyword">const</span> <span class="special">&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">*</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_has_void_return.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_has_void_return.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_has_void_return.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">has_void_return</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">has_void_return</span><span class="special"><</span><span class="keyword">void</span><span class="special">()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">has_void_return</span><span class="special"><</span><span class="keyword">int</span><span class="special">()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_is_const_member"></a><a class="link" href="reference.html#callable_traits.reference.ref_is_const_member" title="is_const_member">is_const_member</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_is_const_member.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_const_member.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_const_member.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_const_member</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_is_const_member.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_const_member.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_const_member.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">is_const_member</span><span class="special">;</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_const_member_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_is_const_member.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_const_member.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_const_member.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- none
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_const_member.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_const_member.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_const_member.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">is_const_member</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code> is <code class="computeroutput"><span class="keyword">true</span></code>
- when either:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- type with a <code class="computeroutput"><span class="keyword">const</span></code>
- member qualifier
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a pointer
- to a member function with a <code class="computeroutput"><span class="keyword">const</span></code>
- member qualifier
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>, where the <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code> has a <code class="computeroutput"><span class="keyword">const</span></code>
- member qualifier
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- On compilers that support variable templates, <code class="computeroutput"><span class="identifier">is_const_member_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> is equivalent to <code class="computeroutput"><span class="identifier">is_const_member</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_const_member.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_const_member.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_const_member.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">is_const_member_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="special">&</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*&)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_is_const_member.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_const_member.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_const_member.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_const_member</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_const_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_const_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_is_cv_member"></a><a class="link" href="reference.html#callable_traits.reference.ref_is_cv_member" title="is_cv_member">is_cv_member</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_is_cv_member.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_cv_member.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_cv_member.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_cv_member</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_is_cv_member.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_cv_member.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_cv_member.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">is_cv_member</span><span class="special">;</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_cv_member_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_is_cv_member.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_cv_member.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_cv_member.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- none
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_cv_member.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_cv_member.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_cv_member.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">is_cv_member</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code> is <code class="computeroutput"><span class="keyword">true</span></code>
- when either:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- type with both <code class="computeroutput"><span class="keyword">const</span></code>
- and <code class="computeroutput"><span class="keyword">volatile</span></code> member
- qualifiers
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a pointer
- to a member function with both <code class="computeroutput"><span class="keyword">const</span></code>
- and <code class="computeroutput"><span class="keyword">volatile</span></code> member
- qualifiers
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>, where the <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code> has both <code class="computeroutput"><span class="keyword">const</span></code>
- and <code class="computeroutput"><span class="keyword">volatile</span></code> member
- qualifiers
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- On compilers that support variable templates, <code class="computeroutput"><span class="identifier">is_cv_member_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> is equivalent to <code class="computeroutput"><span class="identifier">is_cv_member</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_cv_member.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_cv_member.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_cv_member.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">is_cv_member_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span> <span class="special">&)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_is_cv_member.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_cv_member.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_cv_member.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_cv_member</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_cv_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_cv_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_cv_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_cv_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">volatile</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_is_invocable"></a><a class="link" href="reference.html#callable_traits.reference.ref_is_invocable" title="is_invocable">is_invocable</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_is_invocable.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_invocable.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_invocable.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_invocable</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_is_invocable.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_invocable.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_invocable.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">typename</span><span class="special">...</span> <span class="identifier">Args</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">is_invocable</span><span class="special">;</span>
- <span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Ret</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">typename</span><span class="special">...</span> <span class="identifier">Args</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">is_invocable_r</span><span class="special">;</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">typename</span><span class="special">...</span> <span class="identifier">Args</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_invocable_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Ret</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">typename</span><span class="special">...</span> <span class="identifier">Args</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_invocable_r_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_is_invocable.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_invocable.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_invocable.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- none
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_invocable.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_invocable.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_invocable.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- <p class="simpara">
- standalone c++11 implementation of c++17 <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_invocable</span></code>,
- <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_invocable_r</span></code>
- </p>
- <div class="note"><table border="0" summary="Note">
- <tr>
- <td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../doc/src/images/note.png"></td>
- <th align="left">Note</th>
- </tr>
- <tr><td align="left" valign="top"><p>
- ref-qualified overloads of <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code> with different signatures are not
- handled correctly yet.
- </p></td></tr>
- </table></div>
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_invocable.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_invocable.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_invocable.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_invocable</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span> <span class="special">{</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">typename</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">enable_if</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_integral</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span><span class="special">>::</span><span class="identifier">type</span>
- <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">T</span><span class="special">){}</span>
- <span class="special">};</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_invocable</span><span class="special"><</span><span class="identifier">foo</span><span class="special">,</span> <span class="keyword">int</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_invocable</span><span class="special"><</span><span class="identifier">foo</span><span class="special">,</span> <span class="keyword">double</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_is_lvalue_reference_member"></a><a class="link" href="reference.html#callable_traits.reference.ref_is_lvalue_reference_member" title="is_lvalue_reference_member">is_lvalue_reference_member</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_is_lvalue_reference_member.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_lvalue_reference_member.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_lvalue_reference_member.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_lvalue_reference_member</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_is_lvalue_reference_member.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_lvalue_reference_member.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_lvalue_reference_member.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">is_lvalue_reference_member</span><span class="special">;</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_lvalue_reference_member_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_is_lvalue_reference_member.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_lvalue_reference_member.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_lvalue_reference_member.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- none
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_lvalue_reference_member.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_lvalue_reference_member.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_lvalue_reference_member.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">is_lvalue_reference_member</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>
- is <code class="computeroutput"><span class="keyword">true</span></code> when either:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- type with a '&' member qualifier
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a pointer
- to a member function with a '&' member qualifiers
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>, where the <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code> has a '&' member qualifier
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- On compilers that support variable templates, <code class="computeroutput"><span class="identifier">is_lvalue_reference_member_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> is equivalent to <code class="computeroutput"><span class="identifier">is_lvalue_reference_member</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_lvalue_reference_member.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_lvalue_reference_member.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_lvalue_reference_member.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">is_lvalue_reference_member_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span>
- <span class="keyword">const</span> <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_is_lvalue_reference_member.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_lvalue_reference_member.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_lvalue_reference_member.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_lvalue_reference_member</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_lvalue_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">()&>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_lvalue_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">()&&>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_lvalue_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_lvalue_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()&>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_lvalue_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()&&>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_lvalue_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_is_reference_member"></a><a class="link" href="reference.html#callable_traits.reference.ref_is_reference_member" title="is_reference_member">is_reference_member</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_is_reference_member.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_reference_member.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_reference_member.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_reference_member</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_is_reference_member.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_reference_member.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_reference_member.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">is_reference_member</span><span class="special">;</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_reference_member_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_is_reference_member.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_reference_member.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_reference_member.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- none
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_reference_member.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_reference_member.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_reference_member.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">is_reference_member</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code> is <code class="computeroutput"><span class="keyword">true</span></code>
- when either:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- type with a '&' or '&&' member qualifier
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a pointer
- to a member function with a '&' or '&&' member qualifiers
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>, where the <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code> has a '&' or '&&'
- member qualifier
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- On compilers that support variable templates, <code class="computeroutput"><span class="identifier">is_reference_member_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> is equivalent to <code class="computeroutput"><span class="identifier">is_reference_member</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_reference_member.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_reference_member.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_reference_member.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">is_reference_member_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span>
- <span class="keyword">volatile</span> <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_is_reference_member.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_reference_member.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_reference_member.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_reference_member</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">()&>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">()&&>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()&>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()&&>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_is_rvalue_reference_member"></a><a class="link" href="reference.html#callable_traits.reference.ref_is_rvalue_reference_member" title="is_rvalue_reference_member">is_rvalue_reference_member</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_is_rvalue_reference_member.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_rvalue_reference_member.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_rvalue_reference_member.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_rvalue_reference_member</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_is_rvalue_reference_member.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_rvalue_reference_member.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_rvalue_reference_member.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">is_rvalue_reference_member</span><span class="special">;</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_rvalue_reference_member_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_is_rvalue_reference_member.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_rvalue_reference_member.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_rvalue_reference_member.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- none
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_rvalue_reference_member.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_rvalue_reference_member.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_rvalue_reference_member.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">is_rvalue_reference_member</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>
- is <code class="computeroutput"><span class="keyword">true</span></code> when either:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- type with a '&&' member qualifier
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a pointer
- to a member function with a '&&' member qualifiers
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>, where the <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code> has a '&&' member qualifier
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- On compilers that support variable templates, <code class="computeroutput"><span class="identifier">is_rvalue_reference_member_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> is equivalent to <code class="computeroutput"><span class="identifier">is_rvalue_reference_member</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_rvalue_reference_member.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_rvalue_reference_member.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_rvalue_reference_member.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">is_rvalue_reference_member_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">volatile</span><span class="special">)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_is_rvalue_reference_member.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_rvalue_reference_member.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_rvalue_reference_member.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_rvalue_reference_member</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_rvalue_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">()&&>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_rvalue_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">()&>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_rvalue_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_rvalue_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()&&>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_rvalue_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()&>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_rvalue_reference_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_is_noexcept"></a><a class="link" href="reference.html#callable_traits.reference.ref_is_noexcept" title="is_noexcept">is_noexcept</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_is_noexcept.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_noexcept.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_noexcept.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_noexcept</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_is_noexcept.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_noexcept.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_noexcept.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">is_noexcept</span><span class="special">;</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_noexcept_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_is_noexcept.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_noexcept.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_noexcept.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- none
- </li>
- <li class="listitem"><h5>
- <a name="callable_traits.reference.ref_is_noexcept.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_noexcept.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_noexcept.behavior">Behavior</a>
- </h5></li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">is_noexcept</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code> is <code class="computeroutput"><span class="keyword">true</span></code>
- when either:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- type, function pointer type, function reference type, or member
- function pointer type where the function has a <code class="computeroutput"><span class="keyword">noexcept</span></code>
- specifier
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>, where the <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code> has a <code class="computeroutput"><span class="keyword">noexcept</span></code>
- specifier
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- On compilers that support variable templates, <code class="computeroutput"><span class="identifier">is_noexcept_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> is equivalent to <code class="computeroutput"><span class="identifier">is_noexcept</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_noexcept.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_noexcept.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_noexcept.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">is_noexcept_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="keyword">noexcept</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*</span>
- <span class="keyword">const</span> <span class="special">&)()</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_is_noexcept.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_noexcept.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_noexcept.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_noexcept</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_noexcept</span><span class="special"><</span><span class="keyword">int</span><span class="special">()</span> <span class="keyword">noexcept</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_noexcept</span><span class="special"><</span><span class="keyword">int</span><span class="special">(*)()</span> <span class="keyword">noexcept</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_noexcept</span><span class="special"><</span><span class="keyword">int</span><span class="special">(&)()</span> <span class="keyword">noexcept</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_noexcept</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_noexcept</span><span class="special"><</span><span class="keyword">int</span><span class="special">()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_noexcept</span><span class="special"><</span><span class="keyword">int</span><span class="special">(*)()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_noexcept</span><span class="special"><</span><span class="keyword">int</span><span class="special">(&)()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_noexcept</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_is_transaction_safe"></a><a class="link" href="reference.html#callable_traits.reference.ref_is_transaction_safe" title="is_transaction_safe">is_transaction_safe</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_is_transaction_safe.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_transaction_safe.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_transaction_safe.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_transaction_safe</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_is_transaction_safe.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_transaction_safe.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_transaction_safe.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">is_transaction_safe</span><span class="special">;</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_transaction_safe_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_is_transaction_safe.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_transaction_safe.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_transaction_safe.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- none
- </li>
- <li class="listitem"><h5>
- <a name="callable_traits.reference.ref_is_transaction_safe.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_transaction_safe.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_transaction_safe.behavior">Behavior</a>
- </h5></li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">is_transaction_safe</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code> is <code class="computeroutput"><span class="keyword">true</span></code>
- when either:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- type, function pointer type, function reference type, or member
- function pointer type where the function has a <code class="computeroutput"><span class="identifier">transaction_safe</span></code>
- specifier
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>, where the <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code> has a <code class="computeroutput"><span class="identifier">transaction_safe</span></code>
- specifier
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- On compilers that support variable templates, <code class="computeroutput"><span class="identifier">is_transaction_safe_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> is equivalent to <code class="computeroutput"><span class="identifier">is_transaction_safe</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_transaction_safe.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_transaction_safe.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_transaction_safe.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">is_transaction_safe_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_is_transaction_safe.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_transaction_safe.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_transaction_safe.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_transaction_safe</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_transaction_safe</span><span class="special"><</span><span class="keyword">int</span><span class="special">()</span> <span class="identifier">transaction_safe</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_transaction_safe</span><span class="special"><</span><span class="keyword">int</span><span class="special">(*)()</span> <span class="identifier">transaction_safe</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_transaction_safe</span><span class="special"><</span><span class="keyword">int</span><span class="special">(&)()</span> <span class="identifier">transaction_safe</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_transaction_safe</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="identifier">transaction_safe</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_transaction_safe</span><span class="special"><</span><span class="keyword">int</span><span class="special">()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_transaction_safe</span><span class="special"><</span><span class="keyword">int</span><span class="special">(*)()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_transaction_safe</span><span class="special"><</span><span class="keyword">int</span><span class="special">(&)()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_transaction_safe</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_is_volatile_member"></a><a class="link" href="reference.html#callable_traits.reference.ref_is_volatile_member" title="is_volatile_member">is_volatile_member</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_is_volatile_member.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_volatile_member.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_volatile_member.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_volatile_member</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_is_volatile_member.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_volatile_member.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_volatile_member.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="comment">// inherits from either std::true_type or std::false_type</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">is_volatile_member</span><span class="special">;</span>
- <span class="comment">// only available when variable templates are supported</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">constexpr</span> <span class="keyword">bool</span> <span class="identifier">is_volatile_member_v</span> <span class="special">=</span> <span class="comment">//see below</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_is_volatile_member.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_volatile_member.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_volatile_member.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- none
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_volatile_member.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_volatile_member.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_volatile_member.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">is_volatile_member</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code> is <code class="computeroutput"><span class="keyword">true</span></code>
- when either:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- type with a <code class="computeroutput"><span class="keyword">volatile</span></code>
- member qualifier
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a pointer
- to a member function with a <code class="computeroutput"><span class="keyword">volatile</span></code>
- member qualifier
- </li>
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> is a function
- object with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>, where the <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code> has a <code class="computeroutput"><span class="keyword">volatile</span></code>
- member qualifier
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- On compilers that support variable templates, <code class="computeroutput"><span class="identifier">is_volatile_member_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code> is equivalent to <code class="computeroutput"><span class="identifier">is_volatile_member</span><span class="special"><</span><span class="identifier">T</span><span class="special">>::</span><span class="identifier">value</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_is_volatile_member.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_volatile_member.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_volatile_member.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">is_volatile_member_v</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">true</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">volatile</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">false</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_is_volatile_member.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_is_volatile_member.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_is_volatile_member.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">is_volatile_member</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_volatile_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">()</span> <span class="keyword">volatile</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_volatile_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">()</span> <span class="keyword">const</span> <span class="keyword">volatile</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_volatile_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_volatile_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">volatile</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_volatile_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(!</span><span class="identifier">ct</span><span class="special">::</span><span class="identifier">is_volatile_member</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_qualified_class_of"></a><a class="link" href="reference.html#callable_traits.reference.ref_qualified_class_of" title="qualified_class_of">qualified_class_of</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_qualified_class_of.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_qualified_class_of.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_qualified_class_of.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">qualified_class_of</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_qualified_class_of.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_qualified_class_of.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_qualified_class_of.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">qualified_class_of_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">qualified_class_of</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">qualified_class_of_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_qualified_class_of.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_qualified_class_of.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_qualified_class_of.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be a member pointer
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_qualified_class_of.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_qualified_class_of.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_qualified_class_of.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a member function
- pointer, the aliased type is the parent class of the member, qualified
- according to the member qualifiers on <code class="computeroutput"><span class="identifier">T</span></code>.
- If <code class="computeroutput"><span class="identifier">T</span></code> does not have a
- member reference qualifier, then the aliased type will be an lvalue reference.
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a member data
- pointer, the aliased type is equivalent to <code class="computeroutput"><span class="identifier">ct</span><span class="special">::</span><span class="identifier">class_of</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="keyword">const</span> <span class="special">&</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_qualified_class_of.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_qualified_class_of.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_qualified_class_of.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">qualified_class_of_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">foo</span> <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">volatile</span><span class="special">)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">foo</span> <span class="keyword">const</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">foo</span> <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*&)()</span>
- <span class="keyword">volatile</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">foo</span> <span class="keyword">volatile</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">foo</span> <span class="keyword">const</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">int</span>
- <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">foo</span> <span class="keyword">const</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_qualified_class_of.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_qualified_class_of.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_qualified_class_of.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">qualified_class_of</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">foo</span> <span class="special">&,</span>
- <span class="identifier">ct</span><span class="special">::</span><span class="identifier">qualified_class_of_t</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()>>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">foo</span> <span class="keyword">const</span> <span class="special">&,</span>
- <span class="identifier">ct</span><span class="special">::</span><span class="identifier">qualified_class_of_t</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">>>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">foo</span> <span class="keyword">volatile</span> <span class="special">&&,</span>
- <span class="identifier">ct</span><span class="special">::</span><span class="identifier">qualified_class_of_t</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">volatile</span> <span class="special">&&>>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_remove_member_const"></a><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_const" title="remove_member_const">remove_member_const</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_const.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_const.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_const.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_member_const</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_const.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_const.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_const.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">remove_member_const_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">remove_member_const</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">remove_member_const_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_const.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_const.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_const.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be a function
- type or a member function pointer type
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_const.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_const.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_const.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Removes the member <code class="computeroutput"><span class="keyword">const</span></code>
- qualifier from <code class="computeroutput"><span class="identifier">T</span></code>, if
- present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_const.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_const.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_const.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">remove_member_const_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_const.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_const.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_const.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_member_const</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span> <span class="special">{};</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)();</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_const_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_const_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">volatile</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_const_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">();</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_const_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_remove_member_cv"></a><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_cv" title="remove_member_cv">remove_member_cv</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_cv.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_cv.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_cv.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_member_cv</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_cv.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_cv.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_cv.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">remove_member_cv_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">remove_member_cv</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">remove_member_cv_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_cv.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_cv.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_cv.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be a function
- type or a member function pointer type
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_cv.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_cv.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_cv.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Removes member <code class="computeroutput"><span class="keyword">const</span></code> and/or
- <code class="computeroutput"><span class="keyword">volatile</span></code> qualifiers from
- <code class="computeroutput"><span class="identifier">T</span></code>, if present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_cv.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_cv.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_cv.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">remove_member_cv_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_cv.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_cv.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_cv.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_member_cv</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span> <span class="special">{};</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)();</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_cv_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_cv_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_cv_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">()</span> <span class="keyword">const</span> <span class="keyword">volatile</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">();</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_cv_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_remove_member_reference"></a><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_reference" title="remove_member_reference">remove_member_reference</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_reference.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_reference.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_reference.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_member_reference</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_reference.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_reference.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_reference.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">remove_member_reference_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">remove_member_reference</span>
- <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">remove_member_reference_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_reference.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_reference.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_reference.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be a function
- type or a member function pointer type
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_reference.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_reference.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_reference.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occuers if the constraints are violated.
- </li>
- <li class="listitem">
- Removes member <code class="computeroutput"><span class="special">&</span></code> or
- <code class="computeroutput"><span class="special">&&</span></code> qualifiers from
- <code class="computeroutput"><span class="identifier">T</span></code>, if present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_reference.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_reference.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_reference.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">remove_member_const_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_reference.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_reference.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_reference.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_member_reference</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span> <span class="special">{};</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)();</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_reference_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_reference_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_reference_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">()</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">();</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_reference_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_remove_member_volatile"></a><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_volatile" title="remove_member_volatile">remove_member_volatile</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_volatile.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_volatile.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_volatile.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_member_volatile</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_volatile.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_volatile.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_volatile.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">remove_member_volatile_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">remove_member_volatile</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">remove_member_volatile_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_volatile.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_volatile.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_volatile.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be a function
- type or a member function pointer type
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_volatile.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_volatile.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_volatile.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Removes the member <code class="computeroutput"><span class="keyword">volatile</span></code>
- qualifier from <code class="computeroutput"><span class="identifier">T</span></code>, if
- present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_volatile.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_volatile.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_volatile.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">remove_member_volatile_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span> <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span> <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span> <span class="keyword">volatile</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_member_volatile.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_member_volatile.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_member_volatile.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_member_volatile</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span> <span class="special">{};</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span> <span class="keyword">volatile</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_volatile_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">volatile</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_volatile_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">volatile</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="special">&;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_volatile_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">()</span> <span class="keyword">const</span> <span class="keyword">volatile</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">()</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_member_volatile_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_remove_noexcept"></a><a class="link" href="reference.html#callable_traits.reference.ref_remove_noexcept" title="remove_noexcept">remove_noexcept</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_noexcept.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_noexcept.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_noexcept.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_noexcept</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_noexcept.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_noexcept.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_noexcept.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">remove_noexcept_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">remove_noexcept</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">remove_noexcept_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_noexcept.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_noexcept.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_noexcept.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be one of the
- following:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- function type
- </li>
- <li class="listitem">
- function pointer type
- </li>
- <li class="listitem">
- function reference type
- </li>
- <li class="listitem">
- member function pointer type
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_noexcept.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_noexcept.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_noexcept.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Removes the <code class="computeroutput"><span class="keyword">noexcept</span></code> specifier
- from <code class="computeroutput"><span class="identifier">T</span></code>, if present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_noexcept.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_noexcept.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_noexcept.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">remove_noexcept_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="keyword">noexcept</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">noexcept</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_noexcept.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_noexcept.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_noexcept.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_noexcept</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">::</span><span class="identifier">remove_noexcept_t</span><span class="special">;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span>
- <span class="identifier">remove_noexcept_t</span><span class="special"><</span><span class="keyword">int</span><span class="special">()</span> <span class="keyword">noexcept</span><span class="special">>,</span>
- <span class="keyword">int</span><span class="special">()</span>
- <span class="special">>{},</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_remove_transaction_safe"></a><a class="link" href="reference.html#callable_traits.reference.ref_remove_transaction_safe" title="remove_transaction_safe">remove_transaction_safe</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_transaction_safe.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_transaction_safe.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_transaction_safe.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_transaction_safe</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_transaction_safe.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_transaction_safe.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_transaction_safe.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">remove_transaction_safe_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">remove_transaction_safe</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">remove_transaction_safe_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_transaction_safe.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_transaction_safe.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_transaction_safe.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be one of the
- following:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- function type
- </li>
- <li class="listitem">
- function pointer type
- </li>
- <li class="listitem">
- function reference type
- </li>
- <li class="listitem">
- member function pointer type
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_transaction_safe.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_transaction_safe.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_transaction_safe.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Removes the member <code class="computeroutput"><span class="identifier">transaction_safe</span></code>
- specifier from <code class="computeroutput"><span class="identifier">T</span></code>, if
- present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_transaction_safe.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_transaction_safe.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_transaction_safe.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">remove_transaction_safe_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span> <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(</span><span class="identifier">foo</span><span class="special">::*</span>
- <span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_transaction_safe.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_transaction_safe.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_transaction_safe.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_transaction_safe</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">ts</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">()</span> <span class="identifier">transaction_safe</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">not_ts</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">();</span>
- <span class="keyword">using</span> <span class="identifier">ts_removed</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_transaction_safe_t</span><span class="special"><</span><span class="identifier">ts</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">not_ts</span><span class="special">,</span> <span class="identifier">ts_removed</span><span class="special">>{},</span> <span class="string">""</span><span class="special">);</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_remove_varargs"></a><a class="link" href="reference.html#callable_traits.reference.ref_remove_varargs" title="remove_varargs">remove_varargs</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_varargs.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_varargs.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_varargs.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_varargs</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_varargs.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_varargs.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_varargs.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">remove_varargs_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">remove_varargs</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">remove_varargs_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_remove_varargs.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_varargs.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_varargs.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be one of the
- following:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- function type
- </li>
- <li class="listitem">
- function pointer type
- </li>
- <li class="listitem">
- function reference type
- </li>
- <li class="listitem">
- member function pointer type
- </li>
- </ul></div>
- </li>
- <li class="listitem">
- If <code class="computeroutput"><span class="identifier">T</span></code> is a pointer, it
- may not be cv/ref qualified
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_varargs.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_varargs.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_varargs.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- A substitution failure occurs if the constraints are violated.
- </li>
- <li class="listitem">
- Removes C-style variadics (<code class="computeroutput"><span class="special">...</span></code>)
- from the signature of <code class="computeroutput"><span class="identifier">T</span></code>,
- if present.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_varargs.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_varargs.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_varargs.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">remove_varargs_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(...)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="special">...)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="keyword">int</span><span class="special">)</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(&)(...)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(&)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span>
- <span class="special">&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="special">&&</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="identifier">transaction_safe</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="identifier">foo</span><span class="special">::*</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*</span>
- <span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_remove_varargs.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_remove_varargs.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_remove_varargs.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">remove_varargs</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span> <span class="special">{};</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">f</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">,</span> <span class="special">...);</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="keyword">int</span><span class="special">);</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_varargs_t</span><span class="special"><</span><span class="identifier">f</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">fp</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(*)(...);</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(*)();</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_varargs_t</span><span class="special"><</span><span class="identifier">fp</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">fr</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(&)(</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*,</span> <span class="special">...);</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(&)(</span><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*);</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_varargs_t</span><span class="special"><</span><span class="identifier">fr</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">pmf</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)(...)</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">void</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">test</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">remove_varargs_t</span><span class="special"><</span><span class="identifier">pmf</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">test</span><span class="special">,</span> <span class="identifier">expect</span><span class="special">>::</span><span class="identifier">value</span><span class="special">,</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="special">}</span>
- </pre>
- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="callable_traits.reference.ref_return_type"></a><a class="link" href="reference.html#callable_traits.reference.ref_return_type" title="return_type">return_type</a>
- </h3></div></div></div>
- <h5>
- <a name="callable_traits.reference.ref_return_type.h0"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_return_type.header"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_return_type.header">Header</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">/</span><span class="identifier">return_type</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></pre>
- <h5>
- <a name="callable_traits.reference.ref_return_type.h1"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_return_type.definition"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_return_type.definition">Definition</a>
- </h5>
- <pre class="programlisting"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">using</span> <span class="identifier">return_type_t</span> <span class="special">=</span> <span class="comment">//see below</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">struct</span> <span class="identifier">return_type</span> <span class="special">:</span> <span class="identifier">detail</span><span class="special">::</span><span class="identifier">return_type_impl</span><span class="special"><</span><span class="identifier">T</span><span class="special">></span> <span class="special">{};</span>
- </pre>
- <h5>
- <a name="callable_traits.reference.ref_return_type.h2"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_return_type.constraints"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_return_type.constraints">Constraints</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
- <code class="computeroutput"><span class="identifier">T</span></code> must be one of the
- following:
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: circle; ">
- <li class="listitem">
- function
- </li>
- <li class="listitem">
- function pointer
- </li>
- <li class="listitem">
- function reference
- </li>
- <li class="listitem">
- member function pointer
- </li>
- <li class="listitem">
- member data pointer
- </li>
- <li class="listitem">
- user-defined type with a non-overloaded <code class="computeroutput"><span class="keyword">operator</span><span class="special">()</span></code>
- </li>
- <li class="listitem">
- type of a non-generic lambda
- </li>
- </ul></div>
- </li></ul></div>
- <h5>
- <a name="callable_traits.reference.ref_return_type.h3"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_return_type.behavior"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_return_type.behavior">Behavior</a>
- </h5>
- <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
- <li class="listitem">
- When the constraints are violated, a substitution failure occurs.
- </li>
- <li class="listitem">
- The aliased type is the return type of <code class="computeroutput"><span class="identifier">T</span></code>.
- </li>
- </ul></div>
- <h5>
- <a name="callable_traits.reference.ref_return_type.h4"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_return_type.input_output_examples"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_return_type.input_output_examples">Input/Output
- Examples</a>
- </h5>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">T</span></code>
- </p>
- </th>
- <th>
- <p>
- <code class="computeroutput"><span class="identifier">return_type_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">,</span>
- <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special">></span></code>
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span><span class="special">()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">void</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span><span class="special">(*)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">float</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">char</span><span class="special">*(&)()</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">const</span> <span class="keyword">char</span>
- <span class="special">*</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span>
- <span class="keyword">const</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">int</span> <span class="special">(*</span><span class="keyword">const</span><span class="special">)()</span></code>
- </p>
- </td>
- <td>
- <p>
- (substitution failure)
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <h5>
- <a name="callable_traits.reference.ref_return_type.h5"></a>
- <span class="phrase"><a name="callable_traits.reference.ref_return_type.example_program"></a></span><a class="link" href="reference.html#callable_traits.reference.ref_return_type.example_program">Example
- Program</a>
- </h5>
- <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">type_traits</span><span class="special">></span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">callable_traits</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">ct</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">callable_traits</span><span class="special">;</span>
- <span class="keyword">using</span> <span class="identifier">expect</span> <span class="special">=</span> <span class="keyword">int</span><span class="special">;</span>
- <span class="keyword">struct</span> <span class="identifier">foo</span><span class="special">;</span>
- <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <span class="identifier">T</span><span class="special">></span>
- <span class="keyword">void</span> <span class="identifier">test</span><span class="special">()</span> <span class="special">{</span>
- <span class="keyword">using</span> <span class="identifier">result</span> <span class="special">=</span> <span class="identifier">ct</span><span class="special">::</span><span class="identifier">return_type_t</span><span class="special"><</span><span class="identifier">T</span><span class="special">>;</span>
- <span class="keyword">static_assert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">is_same</span><span class="special"><</span><span class="identifier">expect</span><span class="special">,</span> <span class="identifier">result</span><span class="special">>{},</span> <span class="string">""</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> <span class="special">{</span>
- <span class="identifier">test</span><span class="special"><</span><span class="keyword">int</span><span class="special">()>();</span>
- <span class="identifier">test</span><span class="special"><</span><span class="keyword">int</span><span class="special">(*)()>();</span>
- <span class="identifier">test</span><span class="special"><</span><span class="keyword">int</span><span class="special">(&)()>();</span>
- <span class="identifier">test</span><span class="special"><</span><span class="keyword">int</span><span class="special">()</span> <span class="keyword">const</span><span class="special">>();</span>
- <span class="identifier">test</span><span class="special"><</span><span class="keyword">int</span><span class="special">(</span><span class="identifier">foo</span><span class="special">::*)()</span> <span class="keyword">const</span><span class="special">>();</span>
- <span class="keyword">auto</span> <span class="identifier">x</span> <span class="special">=</span> <span class="special">[]()</span> <span class="special">-></span> <span class="keyword">int</span> <span class="special">{</span> <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> <span class="special">};</span>
- <span class="identifier">test</span><span class="special"><</span><span class="keyword">decltype</span><span class="special">(</span><span class="identifier">x</span><span class="special">)>();</span>
- <span class="special">}</span>
- </pre>
- </div>
- </div>
- <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
- <td align="left"></td>
- <td align="right"><div class="copyright-footer">Copyright © 2016-2018 Barrett Adair<p>
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE.md or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
- </p>
- </div></td>
- </tr></table>
- <hr>
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