ceph/src/boost/libs/mpl/doc/refmanual/long.html

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   7 <title>The MPL Reference Manual: long_</title>
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  14 <div class="section" id="long">
  15 <h1><a class="toc-backref" href="./numeric.html#id1578">long_</a></h1>
  16 <div class="section" id="id1238">
  17 <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
  18 <pre class="literal-block">
  19 template&lt;
  20       long N
  21     &gt;
  22 struct <a href="./long.html" class="identifier">long_</a>
  23 {
  24     // <em>unspecified</em>
  25     // ...
  26 };
  27 </pre>
  28 </div>
  29 <div class="section" id="id1239">
  30 <h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
  31 <p>An <a class="reference internal" href="./integral-constant.html">Integral Constant</a> wrapper for <tt class="literal"><span class="pre">long</span></tt>.</p>
  32 </div>
  33 <div class="section" id="id1240">
  34 <h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
  35 <pre class="literal-block">
  36 #include &lt;<a href="../../../../boost/mpl/long.hpp" class="header">boost/mpl/long.hpp</a>&gt;
  37 </pre>
  38 </div>
  39 <div class="section" id="id1241">
  40 <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
  41 <p><a class="reference internal" href="./integral-constant.html">Integral Constant</a></p>
  42 </div>
  43 <div class="section" id="id1242">
  44 <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
  45 <table border="1" class="docutils table">
  46 <colgroup>
  47 <col width="21%" />
  48 <col width="42%" />
  49 <col width="37%" />
  50 </colgroup>
  51 <thead valign="bottom">
  52 <tr><th class="head">Parameter</th>
  53 <th class="head">Requirement</th>
  54 <th class="head">Description</th>
  55 </tr>
  56 </thead>
  57 <tbody valign="top">
  58 <tr><td><tt class="literal"><span class="pre">N</span></tt></td>
  59 <td>An integral constant</td>
  60 <td>A value to wrap.</td>
  61 </tr>
  62 </tbody>
  63 </table>
  64 </div>
  65 <div class="section" id="id1243">
  66 <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
  67 <p>The semantics of an expression are defined only
  68 where they differ from, or are not defined in <a class="reference internal" href="./integral-constant.html">Integral Constant</a>.</p>
  69 <p>For arbitrary integral constant <tt class="literal"><span class="pre">n</span></tt>:</p>
  70 <table border="1" class="docutils table">
  71 <colgroup>
  72 <col width="24%" />
  73 <col width="76%" />
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  75 <thead valign="bottom">
  76 <tr><th class="head">Expression</th>
  77 <th class="head">Semantics</th>
  78 </tr>
  79 </thead>
  80 <tbody valign="top">
  81 <tr><td><tt class="literal"><span class="pre"><a href="./long.html" class="identifier">long_</a>&lt;c&gt;</span></tt></td>
  82 <td>An <a class="reference internal" href="./integral-constant.html">Integral Constant</a> <tt class="literal"><span class="pre">x</span></tt> such that <tt class="literal"><span class="pre">x::value</span> <span class="pre">==</span> <span class="pre">c</span></tt>
  83 and <tt class="literal"><span class="pre">x::<a href="./value-type.html" class="identifier">value_type</a></span></tt> is identical to <tt class="literal"><span class="pre">long</span></tt>.</td>
  84 </tr>
  85 </tbody>
  86 </table>
  87 </div>
  88 <div class="section" id="id1244">
  89 <h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
  90 <pre class="literal-block">
  91 typedef <a href="./long.html" class="identifier">long_</a>&lt;8&gt; eight;
  92
  93 <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same&lt; eight::<a href="./value-type.html" class="identifier">value_type</a>, long &gt; ));
  94 <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same&lt; eight::type, eight &gt; ));
  95 <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same&lt; <a href="./next.html" class="identifier">next</a>&lt; eight &gt;::type, <a href="./long.html" class="identifier">long_</a>&lt;9&gt; &gt; ));
  96 <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same&lt; <a href="./prior.html" class="identifier">prior</a>&lt; eight &gt;::type, <a href="./long.html" class="identifier">long_</a>&lt;7&gt; &gt; ));
  97 <a href="./assert-relation.html" class="identifier">BOOST_MPL_ASSERT_RELATION</a>( (eight::value), ==, 8 );
  98 assert( eight() == 8 );
  99 </pre>
 100 </div>
 101 <div class="section" id="id1245">
 102 <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
 103 <p><a class="reference internal" href="./data-types.html">Data Types</a>, <a class="reference internal" href="./integral-constant.html">Integral Constant</a>, <a class="reference internal" href="./int.html">int_</a>, <a class="reference internal" href="./size-t.html">size_t</a>, <a class="reference internal" href="./integral-c.html">integral_c</a></p>
 104 <!-- Data Types/Numeric//size_t |40 -->
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