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10<title>The MPL Reference Manual: int_</title>
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14<table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./bool.html" class="navigation-link">Prev</a>&nbsp;<a href="./long.html" class="navigation-link">Next</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./bool.html" class="navigation-link">Back</a>&nbsp;<a href="./long.html" class="navigation-link">Along</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./numeric.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>
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17<div class="section" id="int">
18<h1><a class="toc-backref" href="./numeric.html#id501" name="int">int_</a></h1>
19<div class="section" id="int-synopsis">
20<h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
21<pre class="literal-block">
22template&lt;
23      int N
24    &gt;
25struct <a href="./int.html" class="identifier">int_</a>
26{
27    // <em>unspecified</em>
28    // ...
29};
30</pre>
31</div>
32<div class="section" id="int-description">
33<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
34<p>An <a class="reference" href="./integral-constant.html">Integral Constant</a> wrapper for <tt class="literal"><span class="pre">int</span></tt>.</p>
35</div>
36<div class="section" id="int-header">
37<h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
38<pre class="literal-block">
39#include &lt;<a href="../../../../boost/mpl/int.hpp" class="header">boost/mpl/int.hpp</a>&gt;
40</pre>
41</div>
42<div class="section" id="int-model-of">
43<h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
44<p><a class="reference" href="./integral-constant.html">Integral Constant</a></p>
45</div>
46<div class="section" id="int-parameters">
47<h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
48<table border="1" class="table">
49<colgroup>
50<col width="21%" />
51<col width="42%" />
52<col width="37%" />
53</colgroup>
54<thead valign="bottom">
55<tr><th>Parameter</th>
56<th>Requirement</th>
57<th>Description</th>
58</tr>
59</thead>
60<tbody valign="top">
61<tr><td><tt class="literal"><span class="pre">N</span></tt></td>
62<td>An integral constant</td>
63<td>A value to wrap.</td>
64</tr>
65</tbody>
66</table>
67</div>
68<div class="section" id="int-expression-semantics">
69<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
70<p>The semantics of an expression are defined only
71where they differ from, or are not defined in <a class="reference" href="./integral-constant.html">Integral Constant</a>.</p>
72<p>For arbitrary integral constant <tt class="literal"><span class="pre">n</span></tt>:</p>
73<table border="1" class="table">
74<colgroup>
75<col width="24%" />
76<col width="76%" />
77</colgroup>
78<thead valign="bottom">
79<tr><th>Expression</th>
80<th>Semantics</th>
81</tr>
82</thead>
83<tbody valign="top">
84<tr><td><tt class="literal"><span class="pre"><a href="./int.html" class="identifier">int_</a>&lt;c&gt;</span></tt></td>
85<td>An <a class="reference" 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>
86and <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">int</span></tt>.</td>
87</tr>
88</tbody>
89</table>
90</div>
91<div class="section" id="int-example">
92<h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
93<pre class="literal-block">
94typedef <a href="./int.html" class="identifier">int_</a>&lt;8&gt; eight;
95
96<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same&lt; eight::<a href="./value-type.html" class="identifier">value_type</a>, int &gt; ));
97<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same&lt; eight::type, eight &gt; ));
98<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="./int.html" class="identifier">int_</a>&lt;9&gt; &gt; ));
99<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="./int.html" class="identifier">int_</a>&lt;7&gt; &gt; ));
100<a href="./assert-relation.html" class="identifier">BOOST_MPL_ASSERT_RELATION</a>( (eight::value), ==, 8 );
101assert( eight() == 8 );
102</pre>
103</div>
104<div class="section" id="int-see-also">
105<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
106<p><a class="reference" href="./data-types.html">Data Types</a>, <a class="reference" href="./integral-constant.html">Integral Constant</a>, <a class="refentry reference" href="./long.html"><tt class="refentry literal"><span class="pre">long_</span></tt></a>, <a class="refentry reference" href="./size-t.html"><tt class="refentry literal"><span class="pre">size_t</span></tt></a>, <a class="refentry reference" href="./integral-c.html"><tt class="refentry literal"><span class="pre">integral_c</span></tt></a></p>
107<!-- modtime: November 10, 2004 04:39:40 +0000 -->
108<!-- Data Types/Numeric//long_ |30 -->
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