ceph/src/boost/libs/mpl/doc/refmanual/push-back.html

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   7 <title>The MPL Reference Manual: push_back</title>
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  12 <td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./sequences.html" class="navigation-link">Sequences</a> / <a href="./intrinsic-metafunctions.html" class="navigation-link">Intrinsic Metafunctions</a> / <a href="./push-back.html" class="navigation-link">push_back</a></td>
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  14 <div class="section" id="push-back">
  15 <h1><a class="toc-backref" href="./intrinsic-metafunctions.html#id1443">push_back</a></h1>
  16 <div class="section" id="id336">
  17 <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
  18 <pre class="literal-block">
  19 template&lt;
  20       typename Sequence
  21     , typename T
  22     &gt;
  23 struct <a href="./push-back.html" class="identifier">push_back</a>
  24 {
  25     typedef <em>unspecified</em> type;
  26 };
  27 </pre>
  28 </div>
  29 <div class="section" id="id337">
  30 <h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
  31 <p><tt class="literal"><span class="pre"><a href="./push-back.html" class="identifier">push_back</a></span></tt> performs an insertion at the end of the sequence with guaranteed <em>O(1)</em>
  32 complexity.</p>
  33 </div>
  34 <div class="section" id="id338">
  35 <h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
  36 <pre class="literal-block">
  37 #include &lt;<a href="../../../../boost/mpl/push_back.hpp" class="header">boost/mpl/push_back.hpp</a>&gt;
  38 </pre>
  39 </div>
  40 <div class="section" id="id339">
  41 <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
  42 <p><a class="reference internal" href="./tag-dispatched-metafunction.html">Tag Dispatched Metafunction</a></p>
  43 </div>
  44 <div class="section" id="id340">
  45 <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
  46 <table border="1" class="docutils table">
  47 <colgroup>
  48 <col width="16%" />
  49 <col width="33%" />
  50 <col width="51%" />
  51 </colgroup>
  52 <thead valign="bottom">
  53 <tr><th class="head">Parameter</th>
  54 <th class="head">Requirement</th>
  55 <th class="head">Description</th>
  56 </tr>
  57 </thead>
  58 <tbody valign="top">
  59 <tr><td><tt class="literal"><span class="pre">Sequence</span></tt></td>
  60 <td><a class="reference internal" href="./back-extensible-sequence.html">Back Extensible Sequence</a></td>
  61 <td>A sequence to insert into.</td>
  62 </tr>
  63 <tr><td><tt class="literal"><span class="pre">T</span></tt></td>
  64 <td>Any type</td>
  65 <td>The element to be inserted.</td>
  66 </tr>
  67 </tbody>
  68 </table>
  69 </div>
  70 <div class="section" id="id341">
  71 <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
  72 <p>For any <a class="reference internal" href="./back-extensible-sequence.html">Back Extensible Sequence</a> <tt class="literal"><span class="pre">s</span></tt> and arbitrary type <tt class="literal"><span class="pre">x</span></tt>:</p>
  73 <pre class="literal-block">
  74 typedef <a href="./push-back.html" class="identifier">push_back</a>&lt;s,x&gt;::type r;
  75 </pre>
  76 <table class="docutils field-list" frame="void" rules="none">
  77 <col class="field-name" />
  78 <col class="field-body" />
  79 <tbody valign="top">
  80 <tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first"><a class="reference internal" href="./back-extensible-sequence.html">Back Extensible Sequence</a>.</p>
  81 </td>
  82 </tr>
  83 <tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p>
  84 <pre class="literal-block">
  85 typedef <a href="./insert.html" class="identifier">insert</a>&lt; s,<a href="./end.html" class="identifier">end</a>&lt;s&gt;::type,x &gt;::type r;
  86 </pre>
  87 </td>
  88 </tr>
  89 <tr class="field"><th class="field-name">Postcondition:</th><td class="field-body"><p class="first"><tt class="literal"><span class="pre"><a href="./back.html" class="identifier">back</a>&lt;r&gt;::type</span></tt> is identical to <tt class="literal"><span class="pre">x</span></tt>;</p>
  90 <pre class="last literal-block">
  91 <a href="./size.html" class="identifier">size</a>&lt;r&gt;::value == <a href="./size.html" class="identifier">size</a>&lt;s&gt;::value + 1
  92 </pre>
  93 </td>
  94 </tr>
  95 </tbody>
  96 </table>
  97 </div>
  98 <div class="section" id="id342">
  99 <h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3>
 100 <p>Amortized constant time.</p>
 101 </div>
 102 <div class="section" id="id343">
 103 <h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
 104 <pre class="literal-block">
 105 typedef <a href="./vector-c.html" class="identifier">vector_c</a>&lt;bool,false,false,false,
 106     true,true,true,false,false&gt; bools;
 107
 108 typedef <a href="./push-back.html" class="identifier">push_back</a>&lt;bools,<a href="./bool.html" class="identifier">false_</a>&gt;::type message;
 109
 110 <a href="./assert-relation.html" class="identifier">BOOST_MPL_ASSERT_RELATION</a>( <a href="./back.html" class="identifier">back</a>&lt;message&gt;::type::value, ==, false );
 111 <a href="./assert-relation.html" class="identifier">BOOST_MPL_ASSERT_RELATION</a>(
 112       ( <a href="./count-if.html" class="identifier">count_if</a>&lt;message, <a href="./equal-to.html" class="identifier">equal_to</a>&lt;<a href="./placeholders.html" class="identifier">_1</a>,<a href="./bool.html" class="identifier">false_</a>&gt; &gt;::value ), ==, 6
 113     );
 114 </pre>
 115 </div>
 116 <div class="section" id="id344">
 117 <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
 118 <p><a class="reference internal" href="./back-extensible-sequence.html">Back Extensible Sequence</a>, <a class="reference internal" href="./insert.html">insert</a>, <a class="reference internal" href="./pop-back.html">pop_back</a>, <a class="reference internal" href="./back.html">back</a>, <a class="reference internal" href="./push-front.html">push_front</a></p>
 119 <!-- Sequences/Intrinsic Metafunctions//push_front -->
 120 </div>
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