| 1 | <?xml version="1.0" encoding="utf-8" ?> |
|---|
| 2 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
|---|
| 3 | <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> |
|---|
| 4 | <!-- Copyright Aleksey Gurtovoy 2006. Distributed under the Boost --> |
|---|
| 5 | <!-- Software License, Version 1.0. (See accompanying --> |
|---|
| 6 | <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
|---|
| 7 | <head> |
|---|
| 8 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> |
|---|
| 9 | <meta name="generator" content="Docutils 0.3.6: http://docutils.sourceforge.net/" /> |
|---|
| 10 | <title>The MPL Reference Manual: stable_partition</title> |
|---|
| 11 | <link rel="stylesheet" href="../style.css" type="text/css" /> |
|---|
| 12 | </head> |
|---|
| 13 | <body class="docframe refmanual"> |
|---|
| 14 | <table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./partition.html" class="navigation-link">Prev</a> <a href="./sort.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./partition.html" class="navigation-link">Back</a> <a href="./sort.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> |
|---|
| 15 | <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="./stable-partition.html" class="navigation-link">stable_partition</a></td> |
|---|
| 16 | </tr></table><div class="header-separator"></div> |
|---|
| 17 | <div class="section" id="stable-partition"> |
|---|
| 18 | <h1><a class="toc-backref" href="./transformation-algorithms.html#id423" name="stable-partition">stable_partition</a></h1> |
|---|
| 19 | <div class="section" id="stable-synopsis"> |
|---|
| 20 | <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3> |
|---|
| 21 | <pre class="literal-block"> |
|---|
| 22 | template< |
|---|
| 23 | typename Seq |
|---|
| 24 | , typename Pred |
|---|
| 25 | , typename In1 = <em>unspecified</em> |
|---|
| 26 | , typename In2 = <em>unspecified</em> |
|---|
| 27 | > |
|---|
| 28 | struct <a href="./stable-partition.html" class="identifier">stable_partition</a> |
|---|
| 29 | { |
|---|
| 30 | typedef <em>unspecified</em> type; |
|---|
| 31 | }; |
|---|
| 32 | </pre> |
|---|
| 33 | </div> |
|---|
| 34 | <div class="section" id="stable-description"> |
|---|
| 35 | <h3><a class="subsection-title" href="#description" name="description">Description</a></h3> |
|---|
| 36 | <p>Returns a pair of sequences together containing all elements in the range |
|---|
| 37 | [<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a><Seq>::type</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a><Seq>::type</span></tt>) split into two groups based on the predicate <tt class="literal"><span class="pre">Pred</span></tt>. |
|---|
| 38 | <tt class="literal"><span class="pre"><a href="./stable-partition.html" class="identifier">stable_partition</a></span></tt> is guaranteed to preserve the relative order of the |
|---|
| 39 | elements in the resulting sequences.</p> |
|---|
| 40 | <p>[<em>Note:</em> This wording applies to a no-inserter version(s) of the algorithm. See the |
|---|
| 41 | <cite>Expression semantics</cite> subsection for a precise specification of the algorithm's |
|---|
| 42 | details in all cases — <em>end note</em>]</p> |
|---|
| 43 | </div> |
|---|
| 44 | <div class="section" id="stable-header"> |
|---|
| 45 | <h3><a class="subsection-title" href="#header" name="header">Header</a></h3> |
|---|
| 46 | <pre class="literal-block"> |
|---|
| 47 | #include <<a href="../../../../boost/mpl/stable_partition.hpp" class="header">boost/mpl/stable_partition.hpp</a>> |
|---|
| 48 | </pre> |
|---|
| 49 | </div> |
|---|
| 50 | <div class="section" id="stable-model-of"> |
|---|
| 51 | <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3> |
|---|
| 52 | <p><a class="reference" href="./reversible-algorithm.html">Reversible Algorithm</a></p> |
|---|
| 53 | </div> |
|---|
| 54 | <div class="section" id="stable-parameters"> |
|---|
| 55 | <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3> |
|---|
| 56 | <table border="1" class="table"> |
|---|
| 57 | <colgroup> |
|---|
| 58 | <col width="22%" /> |
|---|
| 59 | <col width="41%" /> |
|---|
| 60 | <col width="36%" /> |
|---|
| 61 | </colgroup> |
|---|
| 62 | <thead valign="bottom"> |
|---|
| 63 | <tr><th>Parameter</th> |
|---|
| 64 | <th>Requirement</th> |
|---|
| 65 | <th>Description</th> |
|---|
| 66 | </tr> |
|---|
| 67 | </thead> |
|---|
| 68 | <tbody valign="top"> |
|---|
| 69 | <tr><td><tt class="literal"><span class="pre">Seq</span></tt></td> |
|---|
| 70 | <td><a class="reference" href="./forward-sequence.html">Forward Sequence</a></td> |
|---|
| 71 | <td>An original sequence.</td> |
|---|
| 72 | </tr> |
|---|
| 73 | <tr><td><tt class="literal"><span class="pre">Pred</span></tt></td> |
|---|
| 74 | <td>Unary <a class="reference" href="./lambda-expression.html">Lambda Expression</a></td> |
|---|
| 75 | <td>A partitioning predicate.</td> |
|---|
| 76 | </tr> |
|---|
| 77 | <tr><td><tt class="literal"><span class="pre">In1</span></tt>, <tt class="literal"><span class="pre">In2</span></tt></td> |
|---|
| 78 | <td><a class="reference" href="./inserter.html">Inserter</a></td> |
|---|
| 79 | <td>Output inserters.</td> |
|---|
| 80 | </tr> |
|---|
| 81 | </tbody> |
|---|
| 82 | </table> |
|---|
| 83 | </div> |
|---|
| 84 | <div class="section" id="stable-expression-semantics"> |
|---|
| 85 | <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3> |
|---|
| 86 | <p>The semantics of an expression are defined only |
|---|
| 87 | where they differ from, or are not defined in <a class="reference" href="./reversible-algorithm.html">Reversible Algorithm</a>.</p> |
|---|
| 88 | <p>For any <a class="reference" href="./forward-sequence.html">Forward Sequence</a> <tt class="literal"><span class="pre">s</span></tt>, an unary <a class="reference" href="./lambda-expression.html">Lambda Expression</a> <tt class="literal"><span class="pre">pred</span></tt>, and <a class="reference" href="./inserter.html">Inserter</a>s |
|---|
| 89 | <tt class="literal"><span class="pre">in1</span></tt> and <tt class="literal"><span class="pre">in2</span></tt>:</p> |
|---|
| 90 | <pre class="literal-block"> |
|---|
| 91 | typedef <a href="./stable-partition.html" class="identifier">stable_partition</a><s,pred,in1,in2>::type r; |
|---|
| 92 | </pre> |
|---|
| 93 | <table class="field-list" frame="void" rules="none"> |
|---|
| 94 | <col class="field-name" /> |
|---|
| 95 | <col class="field-body" /> |
|---|
| 96 | <tbody valign="top"> |
|---|
| 97 | <tr class="field"><th class="field-name">Return type:</th><td class="field-body">A <a class="refentry reference" href="./pair.html"><tt class="refentry literal"><span class="pre">pair</span></tt></a>.</td> |
|---|
| 98 | </tr> |
|---|
| 99 | <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p> |
|---|
| 100 | <pre class="last literal-block"> |
|---|
| 101 | typedef <a href="./lambda.html" class="identifier">lambda</a><pred>::type p; |
|---|
| 102 | typedef <a href="./lambda.html" class="identifier">lambda</a><in1::operation>::type in1_op; |
|---|
| 103 | typedef <a href="./lambda.html" class="identifier">lambda</a><in2::operation>::type in2_op; |
|---|
| 104 | |
|---|
| 105 | typedef <a href="./fold.html" class="identifier">fold</a>< |
|---|
| 106 | s |
|---|
| 107 | , <a href="./pair.html" class="identifier">pair</a>< in1::state, in2::state > |
|---|
| 108 | , <a href="./if.html" class="identifier">if_</a>< |
|---|
| 109 | <a href="./apply-wrap.html" class="identifier">apply_wrap</a><tt class="literal"><span class="pre">1</span></tt><p,_2> |
|---|
| 110 | , <a href="./pair.html" class="identifier">pair</a>< <a href="./apply-wrap.html" class="identifier">apply_wrap</a><tt class="literal"><span class="pre">2</span></tt><in1_op,first<_1>,_2>, second<_1> > |
|---|
| 111 | , <a href="./pair.html" class="identifier">pair</a>< first<_1>, <a href="./apply-wrap.html" class="identifier">apply_wrap</a><tt class="literal"><span class="pre">2</span></tt><in2_op,second<_1>,_2> > |
|---|
| 112 | > |
|---|
| 113 | >::type r; |
|---|
| 114 | </pre> |
|---|
| 115 | </td> |
|---|
| 116 | </tr> |
|---|
| 117 | </tbody> |
|---|
| 118 | </table> |
|---|
| 119 | </div> |
|---|
| 120 | <div class="section" id="stable-complexity"> |
|---|
| 121 | <h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3> |
|---|
| 122 | <p>Linear. 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 <tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a><s>::value</span></tt> |
|---|
| 123 | of summarized <tt class="literal"><span class="pre">in1::operation</span></tt> / <tt class="literal"><span class="pre">in2::operation</span></tt> applications.</p> |
|---|
| 124 | </div> |
|---|
| 125 | <div class="section" id="stable-example"> |
|---|
| 126 | <h3><a class="subsection-title" href="#example" name="example">Example</a></h3> |
|---|
| 127 | <pre class="literal-block"> |
|---|
| 128 | template< typename N > struct is_odd : <a href="./bool.html" class="identifier">bool_</a><(N::value % 2)> {}; |
|---|
| 129 | |
|---|
| 130 | typedef <a href="./stable-partition.html" class="identifier">stable_partition</a>< |
|---|
| 131 | <a href="./range-c.html" class="identifier">range_c</a><int,0,10> |
|---|
| 132 | , is_odd<_1> |
|---|
| 133 | , <a href="./back-inserter.html" class="identifier">back_inserter</a>< <a href="./vector.html" class="identifier">vector</a><> > |
|---|
| 134 | , <a href="./back-inserter.html" class="identifier">back_inserter</a>< <a href="./vector.html" class="identifier">vector</a><> > |
|---|
| 135 | >::type r; |
|---|
| 136 | |
|---|
| 137 | <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>< r::first, <a href="./vector-c.html" class="identifier">vector_c</a><int,1,3,5,7,9> > )); |
|---|
| 138 | <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>< r::second, <a href="./vector-c.html" class="identifier">vector_c</a><int,0,2,4,6,8> > )); |
|---|
| 139 | </pre> |
|---|
| 140 | </div> |
|---|
| 141 | <div class="section" id="stable-see-also"> |
|---|
| 142 | <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> |
|---|
| 143 | <p><a class="reference" href="./transformation-algorithms.html">Transformation Algorithms</a>, <a class="reference" href="./reversible-algorithm.html">Reversible Algorithm</a>, <a class="refentry reference" href="./reverse-stable-partition.html"><tt class="refentry literal"><span class="pre">reverse_stable_partition</span></tt></a>, <a class="refentry reference" href="./partition.html"><tt class="refentry literal"><span class="pre">partition</span></tt></a>, <a class="refentry reference" href="./sort.html"><tt class="refentry literal"><span class="pre">sort</span></tt></a>, <a class="refentry reference" href="./transform.html"><tt class="refentry literal"><span class="pre">transform</span></tt></a></p> |
|---|
| 144 | <!-- modtime: November 10, 2004 21:42:59 +0000 --> |
|---|
| 145 | <!-- Algorithms/Transformation Algorithms//sort |95 --> |
|---|
| 146 | </div> |
|---|
| 147 | </div> |
|---|
| 148 | |
|---|
| 149 | <div class="footer-separator"></div> |
|---|
| 150 | <table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./partition.html" class="navigation-link">Prev</a> <a href="./sort.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./partition.html" class="navigation-link">Back</a> <a href="./sort.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> |
|---|
| 151 | </tr></table></body> |
|---|
| 152 | </html> |
|---|
