71 lines
2.3 KiB
HTML
71 lines
2.3 KiB
HTML
<html>
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<head>
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<title>BOOST_PP_LESS_D</title>
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<link rel="stylesheet" type="text/css" href="../styles.css">
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</head>
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<body>
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<div style="margin-left: 0px;">
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The <b>BOOST_PP_LESS_D</b> macro compares two values for lesser magnitude.
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It reenters <b>BOOST_PP_WHILE</b> with maximum efficiency.
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</div>
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<h4>Usage</h4>
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<div class="code">
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<b>BOOST_PP_LESS_D</b>(<i>d</i>, <i>x</i>, <i>y</i>)
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</div>
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<h4>Arguments</h4>
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<dl>
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<dt>d</dt>
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<dd>
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The next available <b>BOOST_PP_WHILE</b> iteration.
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</dd>
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<dt>x</dt>
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<dd>
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The left operand of the comparison.
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Valid values range from <i>0</i> to <b>BOOST_PP_LIMIT_MAG</b>.
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</dd>
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<dt>y</dt>
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<dd>
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The right operand of the comparison.
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Valid values range from <i>0</i> to <b>BOOST_PP_LIMIT_MAG</b>.
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</dd>
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</dl>
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<h4>Remarks</h4>
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<div>
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If <i>x</i> is less than <i>y</i>, this macro expands to <i>1</i>.
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Otherwise, it expands to <i>0</i>.
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</div>
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<h4>See Also</h4>
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<ul>
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<li><a href="less.html">BOOST_PP_LESS</a></li>
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<li><a href="limit_mag.html">BOOST_PP_LIMIT_MAG</a></li>
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</ul>
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<h4>Requirements</h4>
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<div>
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<b>Header:</b> <a href="../headers/comparison/less.html"><boost/preprocessor/comparison/less.hpp></a>
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</div>
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<h4>Sample Code</h4>
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<div><pre>
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#include <<a href="../headers/comparison/less.html">boost/preprocessor/comparison/less.hpp</a>>
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#include <<a href="../headers/list/filter.html">boost/preprocessor/list/filter.hpp</a>>
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#define LIST (1, (2, (3, (4, (5, <a href="nil.html">BOOST_PP_NIL</a>)))))
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#define PRED(d, _, num) <a href="less_d.html">BOOST_PP_LESS_D</a>(d, num, 3)
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<a href="list_filter.html">BOOST_PP_LIST_FILTER</a>(PRED, nil, LIST)
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// expands to (1, (2, <a href="nil.html">BOOST_PP_NIL</a>))
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</pre></div>
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<hr size="1">
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<div style="margin-left: 0px;">
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<i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i>
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</br><i>© Copyright Paul Mensonides 2002</i>
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</div>
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<div style="margin-left: 0px;">
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<p><small>Distributed under the Boost Software License, Version 1.0. (See
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accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
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copy at <a href=
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"http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p>
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</div>
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</body>
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</html>
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