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142 lines
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="generator" content="Docutils 0.7: http://docutils.sourceforge.net/" />
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<title>The MPL Reference Manual: reverse_remove_if</title>
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</head>
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<body class="docframe refmanual">
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<table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./reverse-remove.html" class="navigation-link">Prev</a> <a href="./reverse-unique.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./reverse-remove.html" class="navigation-link">Back</a> <a href="./reverse-unique.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./transformation-algorithms.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
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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="./reverse-remove-if.html" class="navigation-link">reverse_remove_if</a></td>
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</tr></table><div class="header-separator"></div>
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<div class="section" id="reverse-remove-if">
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<h1><a class="toc-backref" href="./transformation-algorithms.html#id1504">reverse_remove_if</a></h1>
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<div class="section" id="id776">
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<h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
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<pre class="literal-block">
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template<
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typename Sequence
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, typename Pred
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, typename In = <em>unspecified</em>
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>
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struct <a href="./reverse-remove-if.html" class="identifier">reverse_remove_if</a>
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{
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typedef <em>unspecified</em> type;
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};
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</pre>
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</div>
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<div class="section" id="id777">
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<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
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<p>Returns a new sequence that contains all the elements from [<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a><Sequence>::type</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a><Sequence>::type</span></tt>) range
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in reverse order except those that satisfy the predicate <tt class="literal"><span class="pre">Pred</span></tt>.</p>
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<p>[<em>Note:</em> This wording applies to a no-inserter version(s) of the algorithm. See the
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<cite>Expression semantics</cite> subsection for a precise specification of the algorithm's
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details in all cases — <em>end note</em>]</p>
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</div>
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<div class="section" id="id778">
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<h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
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<pre class="literal-block">
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#include <<a href="../../../../boost/mpl/remove_if.hpp" class="header">boost/mpl/remove_if.hpp</a>>
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</pre>
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</div>
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<div class="section" id="id779">
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<h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
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<p><a class="reference internal" href="./reversible-algorithm.html">Reversible Algorithm</a></p>
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</div>
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<div class="section" id="id780">
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<h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
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<table border="1" class="docutils table">
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<colgroup>
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<col width="19%" />
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<col width="43%" />
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<col width="38%" />
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</colgroup>
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<thead valign="bottom">
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<tr><th class="head">Parameter</th>
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<th class="head">Requirement</th>
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<th class="head">Description</th>
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</tr>
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</thead>
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<tbody valign="top">
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<tr><td><tt class="literal"><span class="pre">Sequence</span></tt></td>
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<td><a class="reference internal" href="./forward-sequence.html">Forward Sequence</a></td>
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<td>An original sequence.</td>
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</tr>
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<tr><td><tt class="literal"><span class="pre">Pred</span></tt></td>
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<td>Unary <a class="reference internal" href="./lambda-expression.html">Lambda Expression</a></td>
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<td>A removal condition.</td>
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</tr>
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<tr><td><tt class="literal"><span class="pre">In</span></tt></td>
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<td><a class="reference internal" href="./inserter.html">Inserter</a></td>
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<td>An inserter.</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="section" id="id781">
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<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
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<p>The semantics of an expression are defined only
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where they differ from, or are not defined in <a class="reference internal" href="./reversible-algorithm.html">Reversible Algorithm</a>.</p>
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<p>For any <a class="reference internal" href="./forward-sequence.html">Forward Sequence</a> <tt class="literal"><span class="pre">s</span></tt>, and an <a class="reference internal" href="./inserter.html">Inserter</a> <tt class="literal"><span class="pre">in</span></tt>, and an unary
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<a class="reference internal" href="./lambda-expression.html">Lambda Expression</a> <tt class="literal"><span class="pre">pred</span></tt>:</p>
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<pre class="literal-block">
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typedef <a href="./reverse-remove-if.html" class="identifier">reverse_remove_if</a><s,pred,in>::type r;
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</pre>
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<table class="docutils field-list" frame="void" rules="none">
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<col class="field-name" />
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<col class="field-body" />
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<tbody valign="top">
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<tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first">A type.</p>
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</td>
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</tr>
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<tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p>
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<pre class="last literal-block">
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typedef <a href="./lambda.html" class="identifier">lambda</a><pred>::type p;
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typedef <a href="./lambda.html" class="identifier">lambda</a><in::operation>::type op;
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typedef <a href="./reverse-fold.html" class="identifier">reverse_fold</a><
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s
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, in::state
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, <a href="./eval-if.html" class="identifier">eval_if</a><
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<a href="./apply-wrap.html" class="identifier">apply_wrap</a><tt class="literal"><span class="pre">1</span></tt><p,<a href="./placeholders.html" class="identifier">_2</a>>
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, <a href="./identity.html" class="identifier">identity</a><<a href="./placeholders.html" class="identifier">_1</a>>
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, <a href="./apply-wrap.html" class="identifier">apply_wrap</a><tt class="literal"><span class="pre">2</span></tt><op,<a href="./placeholders.html" class="identifier">_1</a>,<a href="./placeholders.html" class="identifier">_2</a>>
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>
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>::type r;
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</pre>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="section" id="id782">
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<h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3>
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<p>Linear. Performs exactly <tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a><s>::value</span></tt> applications of <tt class="literal"><span class="pre">pred</span></tt>, and at
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most <tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a><s>::value</span></tt> insertions.</p>
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</div>
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<div class="section" id="id783">
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<h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
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<pre class="literal-block">
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typedef <a href="./vector-c.html" class="identifier">vector_c</a><int,1,4,5,2,7,5,3,5>::type numbers;
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typedef <a href="./reverse-remove-if.html" class="identifier">reverse_remove_if</a>< numbers, <a href="./greater.html" class="identifier">greater</a><_,<a href="./int.html" class="identifier">int_</a><4> > >::type result;
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<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>< result,<a href="./vector-c.html" class="identifier">vector_c</a><int,3,2,4,1>,<a href="./equal-to.html" class="identifier">equal_to</a><_,_> > ));
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</pre>
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</div>
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<div class="section" id="id784">
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<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
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<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="./remove-if.html">remove_if</a>, <a class="reference internal" href="./reverse-remove.html">reverse_remove</a>,
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<a class="reference internal" href="./reverse-copy-if.html">reverse_copy_if</a>, <a class="reference internal" href="./replace-if.html">replace_if</a></p>
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<!-- Algorithms/Transformation Algorithms//reverse_unique |180 -->
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<table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./reverse-remove.html" class="navigation-link">Prev</a> <a href="./reverse-unique.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./reverse-remove.html" class="navigation-link">Back</a> <a href="./reverse-unique.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./transformation-algorithms.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
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<td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at <a class="reference external" href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)</div></td></tr></table></body>
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