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| 4 | <!-- Copyright Aleksey Gurtovoy 2006. Distributed under the Boost --> |
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| 10 | <title>The MPL Reference Manual: int_</title> |
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| 13 | <body class="docframe refmanual"> |
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| 15 | <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> |
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| 16 | </tr></table><div class="header-separator"></div> |
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| 17 | <div class="section" id="int"> |
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| 18 | <h1><a class="toc-backref" href="./numeric.html#id501" name="int">int_</a></h1> |
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| 19 | <div class="section" id="int-synopsis"> |
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| 20 | <h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3> |
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| 21 | <pre class="literal-block"> |
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| 22 | template< |
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| 23 | int N |
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| 24 | > |
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| 25 | struct <a href="./int.html" class="identifier">int_</a> |
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| 26 | { |
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| 27 | // <em>unspecified</em> |
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| 28 | // ... |
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| 29 | }; |
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| 30 | </pre> |
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| 31 | </div> |
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| 32 | <div class="section" id="int-description"> |
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| 33 | <h3><a class="subsection-title" href="#description" name="description">Description</a></h3> |
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| 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> |
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| 35 | </div> |
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| 36 | <div class="section" id="int-header"> |
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| 37 | <h3><a class="subsection-title" href="#header" name="header">Header</a></h3> |
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| 38 | <pre class="literal-block"> |
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| 39 | #include <<a href="../../../../boost/mpl/int.hpp" class="header">boost/mpl/int.hpp</a>> |
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| 40 | </pre> |
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| 41 | </div> |
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| 42 | <div class="section" id="int-model-of"> |
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| 43 | <h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3> |
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| 44 | <p><a class="reference" href="./integral-constant.html">Integral Constant</a></p> |
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| 45 | </div> |
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| 46 | <div class="section" id="int-parameters"> |
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| 47 | <h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3> |
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| 48 | <table border="1" class="table"> |
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| 49 | <colgroup> |
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| 50 | <col width="21%" /> |
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| 51 | <col width="42%" /> |
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| 52 | <col width="37%" /> |
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| 53 | </colgroup> |
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| 54 | <thead valign="bottom"> |
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| 55 | <tr><th>Parameter</th> |
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| 56 | <th>Requirement</th> |
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| 57 | <th>Description</th> |
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| 58 | </tr> |
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| 59 | </thead> |
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| 60 | <tbody valign="top"> |
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| 61 | <tr><td><tt class="literal"><span class="pre">N</span></tt></td> |
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| 62 | <td>An integral constant</td> |
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| 63 | <td>A value to wrap.</td> |
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| 64 | </tr> |
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| 65 | </tbody> |
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| 66 | </table> |
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| 67 | </div> |
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| 68 | <div class="section" id="int-expression-semantics"> |
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| 69 | <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3> |
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| 70 | <p>The semantics of an expression are defined only |
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| 71 | where they differ from, or are not defined in <a class="reference" href="./integral-constant.html">Integral Constant</a>.</p> |
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| 72 | <p>For arbitrary integral constant <tt class="literal"><span class="pre">n</span></tt>:</p> |
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| 73 | <table border="1" class="table"> |
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| 74 | <colgroup> |
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| 75 | <col width="24%" /> |
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| 76 | <col width="76%" /> |
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| 77 | </colgroup> |
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| 78 | <thead valign="bottom"> |
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| 79 | <tr><th>Expression</th> |
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| 80 | <th>Semantics</th> |
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| 81 | </tr> |
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| 82 | </thead> |
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| 83 | <tbody valign="top"> |
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| 84 | <tr><td><tt class="literal"><span class="pre"><a href="./int.html" class="identifier">int_</a><c></span></tt></td> |
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| 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> |
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| 86 | 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> |
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| 87 | </tr> |
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| 88 | </tbody> |
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| 89 | </table> |
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| 90 | </div> |
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| 91 | <div class="section" id="int-example"> |
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| 92 | <h3><a class="subsection-title" href="#example" name="example">Example</a></h3> |
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| 93 | <pre class="literal-block"> |
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| 94 | typedef <a href="./int.html" class="identifier">int_</a><8> eight; |
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| 95 | |
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| 96 | <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same< eight::<a href="./value-type.html" class="identifier">value_type</a>, int > )); |
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| 97 | <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same< eight::type, eight > )); |
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| 98 | <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same< <a href="./next.html" class="identifier">next</a>< eight >::type, <a href="./int.html" class="identifier">int_</a><9> > )); |
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| 99 | <a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same< <a href="./prior.html" class="identifier">prior</a>< eight >::type, <a href="./int.html" class="identifier">int_</a><7> > )); |
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| 100 | <a href="./assert-relation.html" class="identifier">BOOST_MPL_ASSERT_RELATION</a>( (eight::value), ==, 8 ); |
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| 101 | assert( eight() == 8 ); |
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| 102 | </pre> |
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| 103 | </div> |
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| 104 | <div class="section" id="int-see-also"> |
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| 105 | <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> |
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| 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> |
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| 107 | <!-- modtime: November 10, 2004 04:39:40 +0000 --> |
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| 108 | <!-- Data Types/Numeric//long_ |30 --> |
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| 109 | </div> |
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| 110 | </div> |
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