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- <title>Interval Construction</title>
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- </div>
- <div class="section">
- <div class="titlepage"><div><div><h3 class="title">
- <a name="boost_icl.function_reference.interval_construction"></a><a class="link" href="interval_construction.html" title="Interval Construction">Interval
- Construction</a>
- </h3></div></div></div>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- <col>
- <col>
- <col>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- T
- </p>
- </th>
- <th>
- <p>
- discrete<br> _interval
- </p>
- </th>
- <th>
- <p>
- continuous<br> _interval
- </p>
- </th>
- <th>
- <p>
- right_open<br> _interval
- </p>
- </th>
- <th>
- <p>
- left_open<br> _interval
- </p>
- </th>
- <th>
- <p>
- closed<br> _interval
- </p>
- </th>
- <th>
- <p>
- open<br> _interval
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- Interval bounds
- </p>
- </td>
- <td>
- <p>
- dynamic
- </p>
- </td>
- <td>
- <p>
- dynamic
- </p>
- </td>
- <td>
- <p>
- static
- </p>
- </td>
- <td>
- <p>
- static
- </p>
- </td>
- <td>
- <p>
- static
- </p>
- </td>
- <td>
- <p>
- static
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- Form
- </p>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- <p>
- asymmetric
- </p>
- </td>
- <td>
- <p>
- asymmetric
- </p>
- </td>
- <td>
- <p>
- symmetric
- </p>
- </td>
- <td>
- <p>
- symmetric
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <span class="emphasis"><em><span class="bold"><strong>Construct</strong></span></em></span>
- </p>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">singleton</span><span class="special">(</span><span class="keyword">const</span>
- <span class="identifier">P</span><span class="special">&)</span></code>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">construct</span><span class="special">(</span><span class="keyword">const</span>
- <span class="identifier">P</span><span class="special">&,</span>
- <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span></code>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- </p>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">T</span> <span class="identifier">construct</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span>
- <span class="identifier">interval_bounds</span> <span class="special">)</span>
- </pre>
- <p>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">hull</span><span class="special">(</span><span class="keyword">const</span>
- <span class="identifier">P</span><span class="special">&,</span>
- <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span></code>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">span</span><span class="special">(</span><span class="keyword">const</span>
- <span class="identifier">P</span><span class="special">&,</span>
- <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span></code>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">T</span>
- <span class="identifier">right_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span>
- <span class="identifier">P</span><span class="special">&)</span></code>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">T</span>
- <span class="identifier">left_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span>
- <span class="identifier">P</span><span class="special">&)</span></code>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">T</span>
- <span class="identifier">closed</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span>
- <span class="identifier">P</span><span class="special">&)</span></code>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">T</span>
- <span class="identifier">open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span>
- <span class="identifier">P</span><span class="special">&)</span></code>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a>
- </p>
- </td>
- <td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a>
- </p>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- <td>
- </td>
- </tr>
- </tbody>
- </table></div>
- <p>
- The table above shows the availability of functions, that allow the construction
- of intervals. All interval constructin functins are of <span class="emphasis"><em><span class="bold"><strong>constant time and space complexity</strong></span></em></span>.
- </p>
- <div class="informaltable"><table class="table">
- <colgroup>
- <col>
- <col>
- </colgroup>
- <thead><tr>
- <th>
- <p>
- <span class="emphasis"><em><span class="bold"><strong>Construct</strong></span></em></span>
- </p>
- </th>
- <th>
- <p>
- Description
- </p>
- </th>
- </tr></thead>
- <tbody>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">singleton</span><span class="special">(</span><span class="keyword">const</span>
- <span class="identifier">P</span><span class="special">&</span>
- <span class="identifier">value</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- Constructs an interval that contains exactly one element <code class="computeroutput"><span class="identifier">value</span></code>. For all interval types
- of the icl sigletons can be constructed for <span class="emphasis"><em>discrete</em></span>
- domain types. For continuous domain types, only <code class="computeroutput"><a class="link" href="../../boost/icl/continuous_interval.html" title="Class template continuous_interval">continuous_interval</a></code>
- is capable to construct a singleton.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">construct</span><span class="special">(</span><span class="keyword">const</span>
- <span class="identifier">P</span><span class="special">&</span>
- <span class="identifier">lower</span><span class="special">,</span>
- <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">upper</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- Contructs an interval with lower bound <code class="computeroutput"><span class="identifier">lower</span></code>
- and upper bound <code class="computeroutput"><span class="identifier">upper</span></code>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- </p>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">T</span> <span class="identifier">construct</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">lower</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">upper</span><span class="special">,</span>
- <span class="identifier">interval_bounds</span> <span class="identifier">bounds</span>
- <span class="special">=</span> <span class="identifier">interval_bounds</span><span class="special">::</span><span class="identifier">right_open</span><span class="special">())</span>
- </pre>
- <p>
- </p>
- </td>
- <td>
- <p>
- For dynamically bounded intervals this function constructs an interval
- with interval bounds specified by the third parameter.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">hull</span><span class="special">(</span><span class="keyword">const</span>
- <span class="identifier">P</span><span class="special">&</span>
- <span class="identifier">x1</span><span class="special">,</span>
- <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">x2</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">hull</span><span class="special">(</span><span class="identifier">x1</span><span class="special">,</span><span class="identifier">x2</span><span class="special">)</span></code>
- constructs the smallest interval that contains both <code class="computeroutput"><span class="identifier">x1</span></code> and <code class="computeroutput"><span class="identifier">x2</span></code>.
- <code class="computeroutput"><span class="identifier">x2</span></code> may be smaller
- than <code class="computeroutput"><span class="identifier">x1</span></code>.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">span</span><span class="special">(</span><span class="keyword">const</span>
- <span class="identifier">P</span><span class="special">&</span>
- <span class="identifier">x1</span><span class="special">,</span>
- <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">x2</span><span class="special">)</span></code>
- </p>
- </td>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">span</span><span class="special">(</span><span class="identifier">x1</span><span class="special">,</span><span class="identifier">x2</span><span class="special">)</span></code>
- constructs the interval <code class="computeroutput"><span class="identifier">construct</span><span class="special">(</span><span class="identifier">min</span><span class="special">(</span><span class="identifier">x1</span><span class="special">,</span><span class="identifier">x2</span><span class="special">),</span> <span class="identifier">max</span><span class="special">(</span><span class="identifier">x1</span><span class="special">,</span><span class="identifier">x2</span><span class="special">))</span></code>. Note the differences between
- <code class="computeroutput"><span class="identifier">span</span></code>, <code class="computeroutput"><span class="identifier">hull</span></code> and <code class="computeroutput"><span class="identifier">construct</span></code>:
- </p>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">span</span><span class="special"><</span><span class="identifier">right_open_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="special">>(</span><span class="number">2</span><span class="special">,</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="special">[</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">)</span> <span class="comment">// does NOT contain 2</span>
- <span class="identifier">hull</span><span class="special"><</span><span class="identifier">right_open_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="special">>(</span><span class="number">2</span><span class="special">,</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="special">[</span><span class="number">1</span><span class="special">,</span><span class="number">3</span><span class="special">)</span> <span class="comment">// contains 2</span>
- <span class="identifier">construct</span><span class="special"><</span><span class="identifier">right_open_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="special">>(</span><span class="number">2</span><span class="special">,</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="special">[)</span> <span class="comment">// is empty</span>
- </pre>
- <p>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- </p>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">right_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span>
- <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">left_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span>
- <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">closed</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span>
- <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span>
- </pre>
- <p>
- </p>
- </td>
- <td>
- <p>
- For dynamically bounded intervals there are for static functions
- to construct intervals with the four interval bound types:
- </p>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">discrete_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">itv1</span> <span class="special">=</span> <span class="identifier">discrete_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="number">0</span><span class="special">,</span><span class="number">42</span><span class="special">);</span>
- <span class="identifier">continuous_interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">></span> <span class="identifier">itv2</span> <span class="special">=</span> <span class="identifier">continuous_interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">right_open</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span>
- </pre>
- <p>
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <span class="emphasis"><em><span class="bold"><strong>Using the interval default</strong></span></em></span>
- </p>
- </td>
- <td>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- <code class="computeroutput"><span class="identifier">interval</span><span class="special"><</span><span class="identifier">P</span><span class="special">>::</span><span class="identifier">type</span></code>
- </p>
- </td>
- <td>
- <p>
- There is a library default, for all interval containers of the
- <span class="bold"><strong>icl</strong></span>. The intension of the library
- default is to minimize the need for parameter specification, when
- working with <span class="bold"><strong>icl</strong></span> class templates.
- We can get the library default interval type as <code class="computeroutput"><span class="identifier">interval</span><span class="special"><</span><span class="identifier">P</span><span class="special">>::</span><span class="identifier">type</span></code>.
- The library default uses <span class="emphasis"><em><span class="bold"><strong>dynamically
- bounded intervals</strong></span></em></span>. You can switch to <span class="emphasis"><em><span class="bold"><strong>statically bounded intervals</strong></span></em></span>
- by <code class="computeroutput"><span class="preprocessor">#define</span> <span class="identifier">BOOST_ICL_USE_STATIC_BOUNDED_INTERVALS</span></code>
- prior to icl includes.
- </p>
- </td>
- </tr>
- <tr>
- <td>
- <p>
- </p>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">right_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span>
- <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">left_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span>
- <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">closed</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span>
- <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span>
- </pre>
- <p>
- </p>
- </td>
- <td>
- <p>
- For template struct <code class="computeroutput"><span class="identifier">interval</span></code>
- that always uses the library default the static functions for the
- four interval bound types are also available.
- </p>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv1</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="number">0</span><span class="special">,</span><span class="number">42</span><span class="special">);</span>
- <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv2</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">right_open</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span>
- </pre>
- <p>
- This works with the statically bounded intervals as well, with
- the restriction that for continuous domain types the matching function
- has to be used:
- </p>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="preprocessor">#define</span> <span class="identifier">BOOST_ICL_USE_STATIC_BOUNDED_INTERVALS</span>
- <span class="special">.</span> <span class="special">.</span> <span class="special">.</span>
- <span class="comment">// library default is the statically bounded right_open_interval</span>
- <span class="identifier">interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv1</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="number">0</span><span class="special">,</span><span class="number">42</span><span class="special">);</span> <span class="comment">//==[0,43) //ok, bounds are shifted</span>
- <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv2</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">right_open</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span> <span class="comment">//ok. right_open matches</span>
- <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv3</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span> <span class="comment">//will NOT compile</span>
- </pre>
- <p>
- See also examples <a class="link" href="../examples/dynamic_interval.html" title="Dynamic interval">Dynamic
- intervals</a> and <a class="link" href="../examples/static_interval.html" title="Static interval">Static
- intervals</a>
- </p>
- </td>
- </tr>
- </tbody>
- </table></div>
- <p>
- <span class="emphasis"><em><span class="bold"><strong>See also . . .</strong></span></em></span>
- </p>
- <div class="informaltable"><table class="table">
- <colgroup><col></colgroup>
- <thead><tr></tr></thead>
- <tbody>
- <tr><td>
- <p>
- <a class="link" href="../examples/dynamic_interval.html" title="Dynamic interval"><span class="emphasis"><em><span class="bold"><strong>Example: Dynamically bounded intervals and the library
- default</strong></span></em></span></a>
- </p>
- </td></tr>
- <tr><td>
- <p>
- <a class="link" href="../examples/static_interval.html" title="Static interval"><span class="emphasis"><em><span class="bold"><strong>Example: Statically bounded intervals, changing the
- library default</strong></span></em></span></a>
- </p>
- </td></tr>
- </tbody>
- </table></div>
- <p>
- <span class="emphasis"><em><span class="bold"><strong>Back to section . . .</strong></span></em></span>
- </p>
- <div class="informaltable"><table class="table">
- <colgroup><col></colgroup>
- <thead><tr></tr></thead>
- <tbody>
- <tr><td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#additional_interval_functions"><span class="emphasis"><em><span class="bold"><strong>Additional interval functions</strong></span></em></span></a>
- </p>
- </td></tr>
- <tr><td>
- <p>
- <a class="link" href="../interface/function_synopsis.html#function_synopsis_table"><span class="emphasis"><em><span class="bold"><strong>Function
- Synopsis</strong></span></em></span></a>
- </p>
- </td></tr>
- <tr><td>
- <p>
- <a class="link" href="../interface.html" title="Interface"><span class="emphasis"><em><span class="bold"><strong>Interface</strong></span></em></span></a>
- </p>
- </td></tr>
- </tbody>
- </table></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 © 2007-2010 Joachim
- Faulhaber<br>Copyright © 1999-2006 Cortex Software
- GmbH<p>
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE_1_0.txt 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>
- <div class="spirit-nav">
- <a accesskey="p" href="streaming__conversion.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../function_reference.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="additional_interval_orderings.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
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