boost/libs/mpl/doc/refmanual/reverse-replace.html

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  10 <title>The MPL Reference Manual: reverse_replace</title>
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  14 <table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./reverse-transform.html" class="navigation-link">Prev</a>&nbsp;<a href="./reverse-replace-if.html" class="navigation-link">Next</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./reverse-transform.html" class="navigation-link">Back</a>&nbsp;<a href="./reverse-replace-if.html" class="navigation-link">Along</a></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>
  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="./reverse-replace.html" class="navigation-link">reverse_replace</a></td>
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  17 <div class="section" id="reverse-replace">
  18 <h1><a class="toc-backref" href="./transformation-algorithms.html#id429" name="reverse-replace">reverse_replace</a></h1>
  19 <div class="section" id="id131">
  20 <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
  21 <pre class="literal-block">
  22 template&lt;
  23       typename Sequence
  24     , typename OldType
  25     , typename NewType
  26     , typename In = <em>unspecified</em>
  27     &gt;
  28 struct <a href="./reverse-replace.html" class="identifier">reverse_replace</a>
  29 {
  30     typedef <em>unspecified</em> type;
  31 };
  32 </pre>
  33 </div>
  34 <div class="section" id="id132">
  35 <h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
  36 <p>Returns a reversed copy of the original sequence where every type identical to <tt class="literal"><span class="pre">OldType</span></tt>
  37 has been replaced with <tt class="literal"><span class="pre">NewType</span></tt>.</p>
  38 <p>[<em>Note:</em> This wording applies to a no-inserter version(s) of the algorithm. See the
  39 <cite>Expression semantics</cite> subsection for a precise specification of the algorithm's
  40 details in all cases — <em>end note</em>]</p>
  41 </div>
  42 <div class="section" id="id133">
  43 <h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
  44 <pre class="literal-block">
  45 #include &lt;<a href="../../../../boost/mpl/replace.hpp" class="header">boost/mpl/replace.hpp</a>&gt;
  46 </pre>
  47 </div>
  48 <div class="section" id="the-algorithms-transformation-reverse-model-of">
  49 <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
  50 <p><a class="reference" href="./reversible-algorithm.html">Reversible Algorithm</a></p>
  51 </div>
  52 <div class="section" id="id134">
  53 <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
  54 <table border="1" class="table">
  55 <colgroup>
  56 <col width="19%" />
  57 <col width="43%" />
  58 <col width="38%" />
  59 </colgroup>
  60 <thead valign="bottom">
  61 <tr><th>Parameter</th>
  62 <th>Requirement</th>
  63 <th>Description</th>
  64 </tr>
  65 </thead>
  66 <tbody valign="top">
  67 <tr><td><tt class="literal"><span class="pre">Sequence</span></tt></td>
  68 <td><a class="reference" href="./forward-sequence.html">Forward Sequence</a></td>
  69 <td>A original sequence.</td>
  70 </tr>
  71 <tr><td><tt class="literal"><span class="pre">OldType</span></tt></td>
  72 <td>Any type</td>
  73 <td>A type to be replaced.</td>
  74 </tr>
  75 <tr><td><tt class="literal"><span class="pre">NewType</span></tt></td>
  76 <td>Any type</td>
  77 <td>A type to replace with.</td>
  78 </tr>
  79 <tr><td><tt class="literal"><span class="pre">In</span></tt></td>
  80 <td><a class="reference" href="./inserter.html">Inserter</a></td>
  81 <td>An inserter.</td>
  82 </tr>
  83 </tbody>
  84 </table>
  85 </div>
  86 <div class="section" id="id135">
  87 <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
  88 <p>The semantics of an expression are defined only
  89 where they differ from, or are not defined in <a class="reference" href="./reversible-algorithm.html">Reversible Algorithm</a>.</p>
  90 <p>For any <a class="reference" href="./forward-sequence.html">Forward Sequence</a> <tt class="literal"><span class="pre">s</span></tt>, an <a class="reference" href="./inserter.html">Inserter</a> <tt class="literal"><span class="pre">in</span></tt>, and arbitrary types <tt class="literal"><span class="pre">x</span></tt> and <tt class="literal"><span class="pre">y</span></tt>:</p>
  91 <pre class="literal-block">
  92 typedef <a href="./reverse-replace.html" class="identifier">reverse_replace</a>&lt;s,x,y,in&gt;::type r;
  93 </pre>
  94 <table class="field-list" frame="void" rules="none">
  95 <col class="field-name" />
  96 <col class="field-body" />
  97 <tbody valign="top">
  98 <tr class="field"><th class="field-name">Return type:</th><td class="field-body">A type.</td>
  99 </tr>
 100 <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p>
 101 <pre class="last literal-block">
 102 typedef <a href="./reverse-replace-if.html" class="identifier">reverse_replace_if</a>&lt; s,y,is_same&lt;_,x&gt;,in &gt;::type r;
 103 </pre>
 104 </td>
 105 </tr>
 106 </tbody>
 107 </table>
 108 </div>
 109 <div class="section" id="id136">
 110 <h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3>
 111 <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
 112 identity / insertions.</p>
 113 </div>
 114 <div class="section" id="id137">
 115 <h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
 116 <pre class="literal-block">
 117 typedef <a href="./vector.html" class="identifier">vector</a>&lt;int,float,char,float,float,double&gt; types;
 118 typedef <a href="./vector.html" class="identifier">vector</a>&lt;double,double,double,char,double,int&gt; expected;
 119 typedef <a href="./reverse-replace.html" class="identifier">reverse_replace</a>&lt; types,float,double &gt;::type result;
 120
 121 <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>&lt; result,expected > ));
 122 </pre>
 123 </div>
 124 <div class="section" id="id138">
 125 <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
 126 <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="./replace.html"><tt class="refentry literal"><span class="pre">replace</span></tt></a>, <a class="refentry reference" href="./reverse-replace-if.html"><tt class="refentry literal"><span class="pre">reverse_replace_if</span></tt></a>, <a class="refentry reference" href="./remove.html"><tt class="refentry literal"><span class="pre">remove</span></tt></a>, <a class="refentry reference" href="./reverse-transform.html"><tt class="refentry literal"><span class="pre">reverse_transform</span></tt></a></p>
 127 <!-- modtime: November 10, 2004 04:32:32 +0000 -->
 128 <!-- Algorithms/Transformation Algorithms//reverse_replace_if |150 -->
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