6f63e9d0c6
[SVN r64705]
145 lines
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145 lines
9.1 KiB
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<meta name="generator" content="Docutils 0.7: http://docutils.sourceforge.net/" />
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<title>The MPL Reference Manual: modulus</title>
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<body class="docframe refmanual">
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<table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./divides.html" class="navigation-link">Prev</a> <a href="./negate.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./divides.html" class="navigation-link">Back</a> <a href="./negate.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./arithmetic-operations.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
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<td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./metafunctions.html" class="navigation-link">Metafunctions</a> / <a href="./arithmetic-operations.html" class="navigation-link">Arithmetic Operations</a> / <a href="./modulus.html" class="navigation-link">modulus</a></td>
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</tr></table><div class="header-separator"></div>
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<div class="section" id="modulus">
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<h1><a class="toc-backref" href="./arithmetic-operations.html#id1540">modulus</a></h1>
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<div class="section" id="id996">
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<h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
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<pre class="literal-block">
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template<
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typename T1
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, typename T2
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>
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struct <a href="./modulus.html" class="identifier">modulus</a>
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{
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typedef <em>unspecified</em> type;
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};
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</pre>
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</div>
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<div class="section" id="id997">
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<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
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<p>Returns the modulus of its arguments.</p>
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</div>
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<div class="section" id="id998">
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<h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
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<pre class="literal-block">
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#include <<a href="../../../../boost/mpl/modulus.hpp" class="header">boost/mpl/modulus.hpp</a>>
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#include <<a href="../../../../boost/mpl/arithmetic.hpp" class="header">boost/mpl/arithmetic.hpp</a>>
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</pre>
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</div>
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<div class="section" id="id999">
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<h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
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<p><a class="reference internal" href="./numeric-metafunction.html">Numeric Metafunction</a></p>
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</div>
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<div class="section" id="id1000">
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<h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
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<table border="1" class="docutils table">
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<colgroup>
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<col width="17%" />
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<col width="30%" />
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<col width="53%" />
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</colgroup>
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<thead valign="bottom">
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<tr><th class="head">Parameter</th>
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<th class="head">Requirement</th>
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<th class="head">Description</th>
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</tr>
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</thead>
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<tbody valign="top">
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<tr><td><tt class="literal"><span class="pre">T1</span></tt>, <tt class="literal"><span class="pre">T2</span></tt></td>
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<td><a class="reference internal" href="./integral-constant.html">Integral Constant</a></td>
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<td>Operation's arguments.</td>
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</tr>
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</tbody>
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</table>
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<p>[<em>Note:</em> The requirements listed in this specification
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are the ones imposed by the default implementation. See <a class="reference internal" href="./numeric-metafunction.html">Numeric Metafunction</a> concept
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for the details on how to provide an implementation for a user-defined numeric type
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that does not satisfy the <a class="reference internal" href="./integral-constant.html">Integral Constant</a> requirements. — <em>end note</em>]</p>
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</div>
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<div class="section" id="id1001">
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<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
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<p>For any <a class="reference internal" href="./integral-constant.html">Integral Constant</a>s <tt class="literal"><span class="pre">c1</span></tt> and <tt class="literal"><span class="pre">c2</span></tt>:</p>
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<pre class="literal-block">
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typedef <a href="./modulus.html" class="identifier">modulus</a><c1,c2>::type r;
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</pre>
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<table class="docutils field-list" frame="void" rules="none">
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<col class="field-name" />
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<col class="field-body" />
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<tbody valign="top">
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<tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first"><a class="reference internal" href="./integral-constant.html">Integral Constant</a>.</p>
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</td>
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</tr>
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<tr class="field"><th class="field-name">Precondition:</th><td class="field-body"><p class="first"><tt class="literal"><span class="pre">c2::value</span> <span class="pre">!=</span> <span class="pre">0</span></tt></p>
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</td>
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</tr>
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<tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p>
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<pre class="last literal-block">
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typedef <a href="./integral-c.html" class="identifier">integral_c</a><
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typeof(c1::value % c2::value)
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, ( c1::value % c2::value )
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> r;
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</pre>
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</td>
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</tr>
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</tbody>
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</table>
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<!-- .......................................................................... -->
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<pre class="literal-block">
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typedef <a href="./modulus.html" class="identifier">modulus</a><c1,c2> r;
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</pre>
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<table class="docutils field-list" frame="void" rules="none">
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<col class="field-name" />
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<col class="field-body" />
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<tbody valign="top">
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<tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first"><a class="reference internal" href="./integral-constant.html">Integral Constant</a>.</p>
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</td>
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</tr>
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<tr class="field"><th class="field-name">Precondition:</th><td class="field-body"><p class="first"><tt class="literal"><span class="pre">c2::value</span> <span class="pre">!=</span> <span class="pre">0</span></tt></p>
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</td>
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</tr>
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<tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p>
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<pre class="last literal-block">
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struct r : <a href="./modulus.html" class="identifier">modulus</a><c1,c2>::type {};
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</pre>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="section" id="id1002">
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<h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3>
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<p>Amortized constant time.</p>
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</div>
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<div class="section" id="id1003">
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<h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
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<pre class="literal-block">
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typedef <a href="./modulus.html" class="identifier">modulus</a>< <a href="./int.html" class="identifier">int_</a><10>, <a href="./long.html" class="identifier">long_</a><3> >::type r;
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<a href="./assert-relation.html" class="identifier">BOOST_MPL_ASSERT_RELATION</a>( r::value, ==, 1 );
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<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same< r::<a href="./value-type.html" class="identifier">value_type</a>, long > ));
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</pre>
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</div>
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<div class="section" id="id1004">
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<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
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<p><a class="reference internal" href="./metafunctions.html">Metafunctions</a>, <a class="reference internal" href="./numeric-metafunction.html">Numeric Metafunction</a>, <a class="reference internal" href="./numeric-cast.html">numeric_cast</a>, <a class="reference internal" href="./divides.html">divides</a>, <a class="reference internal" href="./times.html">times</a>, <a class="reference internal" href="./plus.html">plus</a></p>
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<td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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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>
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