boost_mpl/doc/refmanual/int.html

<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="Docutils 0.7: http://docutils.sourceforge.net/" />
<title>The MPL Reference Manual: int_</title>
<link rel="stylesheet" href="../style.css" type="text/css" />
</head>
<body class="docframe refmanual">
<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>
<td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./data-types.html" class="navigation-link">Data Types</a> / <a href="./numeric.html" class="navigation-link">Numeric</a> / <a href="./int.html" class="navigation-link">int_</a></td>
</tr></table><div class="header-separator"></div>
<div class="section" id="int">
<h1><a class="toc-backref" href="./numeric.html#id1577">int_</a></h1>
<div class="section" id="id1230">
<h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
<pre class="literal-block">
template&lt;
      int N
    &gt;
struct <a href="./int.html" class="identifier">int_</a>
{
    // <em>unspecified</em>
    // ...
};
</pre>
</div>
<div class="section" id="id1231">
<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
<p>An <a class="reference internal" href="./integral-constant.html">Integral Constant</a> wrapper for <tt class="literal"><span class="pre">int</span></tt>.</p>
</div>
<div class="section" id="id1232">
<h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
<pre class="literal-block">
#include &lt;<a href="../../../../boost/mpl/int.hpp" class="header">boost/mpl/int.hpp</a>&gt;
</pre>
</div>
<div class="section" id="id1233">
<h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
<p><a class="reference internal" href="./integral-constant.html">Integral Constant</a></p>
</div>
<div class="section" id="id1234">
<h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
<table border="1" class="docutils table">
<colgroup>
<col width="21%" />
<col width="42%" />
<col width="37%" />
</colgroup>
<thead valign="bottom">
<tr><th class="head">Parameter</th>
<th class="head">Requirement</th>
<th class="head">Description</th>
</tr>
</thead>
<tbody valign="top">
<tr><td><tt class="literal"><span class="pre">N</span></tt></td>
<td>An integral constant</td>
<td>A value to wrap.</td>
</tr>
</tbody>
</table>
</div>
<div class="section" id="id1235">
<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
<p>The semantics of an expression are defined only
where they differ from, or are not defined in <a class="reference internal" href="./integral-constant.html">Integral Constant</a>.</p>
<p>For arbitrary integral constant <tt class="literal"><span class="pre">n</span></tt>:</p>
<table border="1" class="docutils table">
<colgroup>
<col width="24%" />
<col width="76%" />
</colgroup>
<thead valign="bottom">
<tr><th class="head">Expression</th>
<th class="head">Semantics</th>
</tr>
</thead>
<tbody valign="top">
<tr><td><tt class="literal"><span class="pre"><a href="./int.html" class="identifier">int_</a>&lt;c&gt;</span></tt></td>
<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>
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">int</span></tt>.</td>
</tr>
</tbody>
</table>
</div>
<div class="section" id="id1236">
<h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
<pre class="literal-block">
typedef <a href="./int.html" class="identifier">int_</a>&lt;8&gt; eight;

<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; ));
<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same&lt; eight::type, eight &gt; ));
<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; ));
<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; ));
<a href="./assert-relation.html" class="identifier">BOOST_MPL_ASSERT_RELATION</a>( (eight::value), ==, 8 );
assert( eight() == 8 );
</pre>
</div>
<div class="section" id="id1237">
<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
<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="./long.html">long_</a>, <a class="reference internal" href="./size-t.html">size_t</a>, <a class="reference internal" href="./integral-c.html">integral_c</a></p>
<!-- Data Types/Numeric//long_ |30 -->
</div>
</div>

<div class="footer-separator"></div>
<table class="footer"><tr class="footer"><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>
<td><div class="copyright-footer"><div class="copyright">Copyright ©  2001-2009 Aleksey Gurtovoy and David Abrahams</div>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a class="reference external" href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)</div></td></tr></table></body>
</html>