ceph/src/boost/libs/mpl/doc/refmanual/reverse-stable-partition.html

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  11 <table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./reverse-partition.html" class="navigation-link">Prev</a>&nbsp;<a href="./runtime-algorithms.html" class="navigation-link">Next</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./reverse-partition.html" class="navigation-link">Back</a>&nbsp;Along</span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./transformation-algorithms.html" class="navigation-link">Up</a>&nbsp;<a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
  12 <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-stable-partition.html" class="navigation-link">reverse_stable_partition</a></td>
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  14 <div class="section" id="reverse-stable-partition">
  15 <h1><a class="toc-backref" href="./transformation-algorithms.html#id1507">reverse_stable_partition</a></h1>
  16 <div class="section" id="id803">
  17 <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
  18 <pre class="literal-block">
  19 template&lt;
  20       typename Seq
  21     , typename Pred
  22     , typename In1 = <em>unspecified</em>
  23     , typename In2 = <em>unspecified</em>
  24     &gt;
  25 struct <a href="./reverse-stable-partition.html" class="identifier">reverse_stable_partition</a>
  26 {
  27     typedef <em>unspecified</em> type;
  28 };
  29 </pre>
  30 </div>
  31 <div class="section" id="id804">
  32 <h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
  33 <p>Returns a pair of sequences together containing all elements in the range
  34 [<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;Seq&gt;::type</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a>&lt;Seq&gt;::type</span></tt>) split into two groups based on the predicate <tt class="literal"><span class="pre">Pred</span></tt>.
  35 <tt class="literal"><span class="pre"><a href="./reverse-stable-partition.html" class="identifier">reverse_stable_partition</a></span></tt> is guaranteed to preserve the reversed
  36 relative order of the elements in the resulting sequences.</p>
  37 <p>[<em>Note:</em> This wording applies to a no-inserter version(s) of the algorithm. See the
  38 <cite>Expression semantics</cite> subsection for a precise specification of the algorithm's
  39 details in all cases — <em>end note</em>]</p>
  40 </div>
  41 <div class="section" id="id805">
  42 <h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
  43 <pre class="literal-block">
  44 #include &lt;<a href="../../../../boost/mpl/stable_partition.hpp" class="header">boost/mpl/stable_partition.hpp</a>&gt;
  45 </pre>
  46 </div>
  47 <div class="section" id="id806">
  48 <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
  49 <p><a class="reference internal" href="./reversible-algorithm.html">Reversible Algorithm</a></p>
  50 </div>
  51 <div class="section" id="id807">
  52 <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
  53 <table border="1" class="docutils table">
  54 <colgroup>
  55 <col width="22%" />
  56 <col width="41%" />
  57 <col width="36%" />
  58 </colgroup>
  59 <thead valign="bottom">
  60 <tr><th class="head">Parameter</th>
  61 <th class="head">Requirement</th>
  62 <th class="head">Description</th>
  63 </tr>
  64 </thead>
  65 <tbody valign="top">
  66 <tr><td><tt class="literal"><span class="pre">Seq</span></tt></td>
  67 <td><a class="reference internal" href="./forward-sequence.html">Forward Sequence</a></td>
  68 <td>An original sequence.</td>
  69 </tr>
  70 <tr><td><tt class="literal"><span class="pre">Pred</span></tt></td>
  71 <td>Unary <a class="reference internal" href="./lambda-expression.html">Lambda Expression</a></td>
  72 <td>A partitioning predicate.</td>
  73 </tr>
  74 <tr><td><tt class="literal"><span class="pre">In1</span></tt>, <tt class="literal"><span class="pre">In2</span></tt></td>
  75 <td><a class="reference internal" href="./inserter.html">Inserter</a></td>
  76 <td>Output inserters.</td>
  77 </tr>
  78 </tbody>
  79 </table>
  80 </div>
  81 <div class="section" id="id808">
  82 <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
  83 <p>The semantics of an expression are defined only
  84 where they differ from, or are not defined in <a class="reference internal" href="./reversible-algorithm.html">Reversible Algorithm</a>.</p>
  85 <p>For any <a class="reference internal" href="./forward-sequence.html">Forward Sequence</a> <tt class="literal"><span class="pre">s</span></tt>, an unary <a class="reference internal" href="./lambda-expression.html">Lambda Expression</a> <tt class="literal"><span class="pre">pred</span></tt>, and <a class="reference internal" href="./inserter.html">Inserter</a>s
  86 <tt class="literal"><span class="pre">in1</span></tt> and <tt class="literal"><span class="pre">in2</span></tt>:</p>
  87 <pre class="literal-block">
  88 typedef <a href="./reverse-stable-partition.html" class="identifier">reverse_stable_partition</a>&lt;s,pred,in1,in2&gt;::type r;
  89 </pre>
  90 <table class="docutils field-list" frame="void" rules="none">
  91 <col class="field-name" />
  92 <col class="field-body" />
  93 <tbody valign="top">
  94 <tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first">A <a class="reference internal" href="./pair.html">pair</a>.</p>
  95 </td>
  96 </tr>
  97 <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p>
  98 <pre class="last literal-block">
  99 typedef <a href="./lambda.html" class="identifier">lambda</a>&lt;pred&gt;::type p;
 100 typedef <a href="./lambda.html" class="identifier">lambda</a>&lt;in1::operation&gt;::type in1_op;
 101 typedef <a href="./lambda.html" class="identifier">lambda</a>&lt;in2::operation&gt;::type in2_op;
 102
 103 typedef <a href="./reverse-fold.html" class="identifier">reverse_fold</a>&lt;
 104       s
 105     , <a href="./pair.html" class="identifier">pair</a>&lt; in1::state, in2::state &gt;
 106     , <a href="./if.html" class="identifier">if_</a>&lt;
 107           <a href="./apply-wrap.html" class="identifier">apply_wrap</a><tt class="literal"><span class="pre">1</span></tt>&lt;p,<a href="./placeholders.html" class="identifier">_2</a>&gt;
 108         , <a href="./pair.html" class="identifier">pair</a>&lt; <a href="./apply-wrap.html" class="identifier">apply_wrap</a><tt class="literal"><span class="pre">2</span></tt>&lt;in1_op,first&lt;<a href="./placeholders.html" class="identifier">_1</a>&gt;,<a href="./placeholders.html" class="identifier">_2</a>&gt;, second&lt;<a href="./placeholders.html" class="identifier">_1</a>&gt; &gt;
 109         , <a href="./pair.html" class="identifier">pair</a>&lt; first&lt;<a href="./placeholders.html" class="identifier">_1</a>&gt;, <a href="./apply-wrap.html" class="identifier">apply_wrap</a><tt class="literal"><span class="pre">2</span></tt>&lt;in2_op,second&lt;<a href="./placeholders.html" class="identifier">_1</a>&gt;,<a href="./placeholders.html" class="identifier">_2</a>&gt; &gt;
 110         &gt;
 111     &gt;::type r;
 112 </pre>
 113 </td>
 114 </tr>
 115 </tbody>
 116 </table>
 117 </div>
 118 <div class="section" id="id809">
 119 <h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3>
 120 <p>Linear. Exactly <tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a>&lt;s&gt;::value</span></tt> applications of <tt class="literal"><span class="pre">pred</span></tt>, and <tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a>&lt;s&gt;::value</span></tt>
 121 of summarized <tt class="literal"><span class="pre">in1::operation</span></tt> / <tt class="literal"><span class="pre">in2::operation</span></tt> applications.</p>
 122 </div>
 123 <div class="section" id="id810">
 124 <h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
 125 <pre class="literal-block">
 126 template&lt; typename N &gt; struct is_odd : <a href="./bool.html" class="identifier">bool_</a>&lt;(N::value % 2)&gt; {};
 127
 128 typedef <a href="./reverse-stable-partition.html" class="identifier">reverse_stable_partition</a>&lt;
 129       <a href="./range-c.html" class="identifier">range_c</a>&lt;int,0,10&gt;
 130     , is_odd&lt;<a href="./placeholders.html" class="identifier">_1</a>&gt;
 131     , <a href="./back-inserter.html" class="identifier">back_inserter</a>&lt; <a href="./vector.html" class="identifier">vector</a>&lt;&gt; &gt;
 132     , <a href="./back-inserter.html" class="identifier">back_inserter</a>&lt; <a href="./vector.html" class="identifier">vector</a>&lt;&gt; &gt;
 133     &gt;::type r;
 134
 135 <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>&lt; r::first, <a href="./vector-c.html" class="identifier">vector_c</a>&lt;int,9,7,5,3,1&gt; &gt; ));
 136 <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>&lt; r::second, <a href="./vector-c.html" class="identifier">vector_c</a>&lt;int,8,6,4,2,0&gt; > ));
 137 </pre>
 138 </div>
 139 <div class="section" id="id811">
 140 <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
 141 <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="./stable-partition.html">stable_partition</a>, <a class="reference internal" href="./reverse-partition.html">reverse_partition</a>, <a class="reference internal" href="./sort.html">sort</a>, <a class="reference internal" href="./transform.html">transform</a></p>
 142 </div>
 143 </div>
 144
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 147 <td><div class="copyright-footer"><div class="copyright">Copyright ©  2001-2009 Aleksey Gurtovoy and David Abrahams</div>
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