forked from boostorg/preprocessor
51 lines
1.5 KiB
HTML
51 lines
1.5 KiB
HTML
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<html>
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<head>
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<title>BOOST_PP_SLOT</title>
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<link rel="stylesheet" type="text/css" href="../styles.css">
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<script language="javascript" type="text/javascript" src="../scripts.js"></script>
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</head>
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<body onload="init('sample');">
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<div style="margin-left: 0px;">
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The <b>BOOST_PP_SLOT</b> macro retrieves a value previously evaluated by <b>BOOST_PP_ASSIGN_SLOT</b>.
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</div>
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<h4>Usage</h4>
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<div class="code">
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#include <b>BOOST_PP_SLOT</b>(<i>i</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 <i>slot</i> index to be retrieved.
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This value must be in the range of <i>1</i> to <b>BOOST_PP_LIMIT_SLOT_COUNT</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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Prior to use, the <i>slot</i> at index <i>i</i> must have been assigned with <b>BOOST_PP_ASSIGN_SLOT</b>.
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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="assign_slot.html">BOOST_PP_ASSIGN_SLOT</a></li>
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<li><a href="limit_slot_count.html">BOOST_PP_LIMIT_SLOT_COUNT</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/slot/slot.hpp.html"><boost/preprocessor/slot/slot.hpp></a>
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</div>
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<h4><a class="local" onclick="toggle('sample');" onmouseover="change(this);" onmouseout="revert(this);">Sample Code</a></h4>
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<div id="sample"><pre>
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#include <boost/preprocessor/slot/slot.hpp>
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#define X() 4
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#define BOOST_PP_VALUE 1 + 2 + 3 + X()
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#include BOOST_PP_ASSIGN_SLOT(1)
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#undef X
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BOOST_PP_SLOT(1) // expands to 10
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<pre></div>
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</body>
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</html>
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