forked from boostorg/preprocessor
51 lines
1.4 KiB
HTML
51 lines
1.4 KiB
HTML
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<html>
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<head>
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<title>BOOST_PP_SET_PUSH_FRONT</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_SET_PUSH_FRONT</b> macro pushes an element onto the beginning of a <i>set</i>.
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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_SET_PUSH_FRONT</b>(<i>set</i>, <i>elem</i>)
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</div>
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<h4>Arguments</h4>
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<dl>
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<dt>set</dt>
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<dd>
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The <i>set</i> onto which <i>elem</i> is pushed.
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</dd>
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<dt>elem</dt>
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<dd>
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The element to push onto the beginning of <i>set</i>.
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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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This macro returns <i>set</i> after prepending <i>elem</i>.
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</div>
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<div>
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This macro is an explicit form of directly prepending an element.
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In other words, <b>BOOST_PP_SET_PUSH_FRONT</b>(<i>set</i>, <i>x</i>) is equivalent to (<i>x</i>)<i>set</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="set_push_back.html">BOOST_PP_SET_PUSH_BACK</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/set/push_front.hpp.html"><boost/preprocessor/set/push_front.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/set/push_front.hpp.html">boost/preprocessor/set/push_front.hpp</a>>
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#define SET (b)(c)
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<a href="set_push_front.html">BOOST_PP_SET_PUSH_FRONT</a>(SET, a) // expands to (a)(b)(c)
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</pre></div>
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</body>
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</html>
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