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<td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./algorithms.html" class="navigation-link">Algorithms</a> / <a href="./transformation-algorithms.html" class="navigation-link">Transformation Algorithms</a> / <a href="./remove.html" class="navigation-link">remove</a></td>
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<div class="section" id="remove">
<h1><a class="toc-backref" href="./transformation-algorithms.html#id1491">remove</a></h1>
<div class="section" id="id660">
<h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
<pre class="literal-block">
template&lt;
      typename Sequence
    , typename T
    , typename In = <em>unspecified</em>
    &gt;
struct <a href="./remove.html" class="identifier">remove</a>
{
    typedef <em>unspecified</em> type;
};
</pre>
</div>
<div class="section" id="id661">
<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
<p>Returns a new sequence that contains all elements from [<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;Sequence&gt;::type</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a>&lt;Sequence&gt;::type</span></tt>)
range except those that are identical to <tt class="literal"><span class="pre">T</span></tt>.</p>
<!-- Returns a copy of the original sequence with all elements identical to ``T``
removed. -->
<p>[<em>Note:</em> This wording applies to a no-inserter version(s) of the algorithm. See the
<cite>Expression semantics</cite> subsection for a precise specification of the algorithm's
details in all cases — <em>end note</em>]</p>
</div>
<div class="section" id="id662">
<h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
<pre class="literal-block">
#include &lt;<a href="../../../../boost/mpl/remove.hpp" class="header">boost/mpl/remove.hpp</a>&gt;
</pre>
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<div class="section" id="id663">
<h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
<p><a class="reference internal" href="./reversible-algorithm.html">Reversible Algorithm</a></p>
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<div class="section" id="id664">
<h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
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<col width="38%" />
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<thead valign="bottom">
<tr><th class="head">Parameter</th>
<th class="head">Requirement</th>
<th class="head">Description</th>
</tr>
</thead>
<tbody valign="top">
<tr><td><tt class="literal"><span class="pre">Sequence</span></tt></td>
<td><a class="reference internal" href="./forward-sequence.html">Forward Sequence</a></td>
<td>An original sequence.</td>
</tr>
<tr><td><tt class="literal"><span class="pre">T</span></tt></td>
<td>Any type</td>
<td>A type to be removed.</td>
</tr>
<tr><td><tt class="literal"><span class="pre">In</span></tt></td>
<td><a class="reference internal" href="./inserter.html">Inserter</a></td>
<td>An inserter.</td>
</tr>
</tbody>
</table>
</div>
<div class="section" id="id665">
<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
<p>The semantics of an expression are defined only
where they differ from, or are not defined in <a class="reference internal" href="./reversible-algorithm.html">Reversible Algorithm</a>.</p>
<p>For any <a class="reference internal" href="./forward-sequence.html">Forward Sequence</a> <tt class="literal"><span class="pre">s</span></tt>, an <a class="reference internal" href="./inserter.html">Inserter</a> <tt class="literal"><span class="pre">in</span></tt>, and arbitrary type <tt class="literal"><span class="pre">x</span></tt>:</p>
<pre class="literal-block">
typedef <a href="./remove.html" class="identifier">remove</a>&lt;s,x,in&gt;::type r;
</pre>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first">A type.</p>
</td>
</tr>
<tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p>
<pre class="last literal-block">
typedef <a href="./remove-if.html" class="identifier">remove_if</a>&lt; s,is_same&lt;_,x&gt;,in &gt;::type r;
</pre>
</td>
</tr>
</tbody>
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<div class="section" id="id666">
<h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3>
<p>Linear. Performs exactly <tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a>&lt;s&gt;::value</span></tt> comparisons for equality, and at
most <tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a>&lt;s&gt;::value</span></tt> insertions.</p>
</div>
<div class="section" id="id667">
<h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
<pre class="literal-block">
typedef <a href="./vector.html" class="identifier">vector</a>&lt;int,float,char,float,float,double&gt;::type types;
typedef <a href="./remove.html" class="identifier">remove</a>&lt; types,float &gt;::type result;

<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>&lt; result, <a href="./vector.html" class="identifier">vector</a>&lt;int,char,double&gt; > ));
</pre>
</div>
<div class="section" id="id668">
<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
<p><a class="reference internal" href="./transformation-algorithms.html">Transformation Algorithms</a>, <a class="reference internal" href="./reversible-algorithm.html">Reversible Algorithm</a>, <a class="reference internal" href="./reverse-remove.html">reverse_remove</a>, <a class="reference internal" href="./remove-if.html">remove_if</a>, <a class="reference internal" href="./copy.html">copy</a>, <a class="reference internal" href="./replace.html">replace</a></p>
<!-- Algorithms/Transformation Algorithms//remove_if |70 -->
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