forked from boostorg/preprocessor
56 lines
1.6 KiB
HTML
56 lines
1.6 KiB
HTML
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<html>
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<head>
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<title>BOOST_PP_SET_ELEM</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_ELEM</b> macro extracts an element from 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_ELEM</b>(<i>i</i>, <i>list</i>)
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</div>
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<h4>Arguments</h4>
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<dl>
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<dt>i</dt>
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<dd>
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The zero-based index of the element to be extracted.
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</dd>
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<dt>set</dt>
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<dd>
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The <i>set</i> from which an element is to be extracted.
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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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The index <i>i</i> must be in the range of <i>0</i> to <b>BOOST_PP_SET_SIZE</b>(<i>set</i>) - <i>1</i>.
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</div>
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<h4>Requirements</h4>
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<div>
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<b>Header:</b> <a href="../headers/set/elem.hpp.html"><boost/preprocessor/set/elem.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/elem.hpp.html">boost/preprocessor/set/elem.hpp</a>>
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<a href="set_elem.html">BOOST_PP_SET_ELEM</a>(1, (a)(b)(c)) // expands to b
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#define SET \
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(0)(1)(2)(3)(4)(5)(6)(7)(8)(9) \
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(10)(11)(12)(13)(14)(15)(16)(17)(18)(19) \
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(20)(21)(22)(23)(24)(25)(26)(27)(28)(29) \
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(30)(31)(32)(33)(34)(35)(36)(37)(38)(39) \
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(40)(41)(42)(43)(44)(45)(46)(47)(48)(49) \
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(50)(51)(52)(53)(54)(55)(56)(57)(58)(59) \
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(60)(61)(62)(63)(64)(65)(66)(67)(68)(69) \
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(70)(71)(72)(73)(74)(75)(76)(77)(78)(79) \
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(80)(81)(82)(83)(84)(85)(86)(87)(88)(89) \
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(90)(91)(92)(93)(94)(95)(96)(97)(98)(99) \
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/**/
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<a href="set_elem.html">BOOST_PP_SET_ELEM</a>(88, SET) // expands to 88
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</pre></div>
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</body>
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</html>
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