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[SVN r15693]
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Paul Mensonides
2002-10-03 22:13:37 +00:00
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<html>
<head>
<title>BOOST_PP_SLOT</title>
<link rel="stylesheet" type="text/css" href="../styles.css">
</head>
<body>
<div style="margin-left: 0px;">
The <b>BOOST_PP_SLOT</b> macro retrieves a value previously evaluated by <b>BOOST_PP_ASSIGN_SLOT</b>.
</div>
<h4>Usage</h4>
<div class="code">
#include <b>BOOST_PP_SLOT</b>(<i>i</i>)
</div>
<h4>Arguments</h4>
<dl>
<dt>i</dt>
<dd>
The <i>slot</i> index to be retrieved.&nbsp;
This value must be in the range of <i>1</i> to <b>BOOST_PP_LIMIT_SLOT_COUNT</b>.
</dd>
</dl>
<h4>Remarks</h4>
<div>
Prior to use, the <i>slot</i> at index <i>i</i> must have been assigned with <b>BOOST_PP_ASSIGN_SLOT</b>.
</div>
<h4>See Also</h4>
<ul>
<li><a href="assign_slot.html">BOOST_PP_ASSIGN_SLOT</a></li>
<li><a href="limit_slot_count.html">BOOST_PP_LIMIT_SLOT_COUNT</a></li>
</ul>
<h4>Requirements</h4>
<div>
<b>Header:</b> &nbsp;<a href="../headers/slot/slot.hpp.html">&lt;boost/preprocessor/slot/slot.hpp&gt;</a>
</div>
<h4>Sample Code</h4>
<div><pre>
#include &lt;<a href="../headers/slot/slot.hpp.html">boost/preprocessor/slot/slot.hpp</a>&gt;
#define X() 4
#define <a href="value.html">BOOST_PP_VALUE</a> 1 + 2 + 3 + X()
#include <a href="assign_slot.html">BOOST_PP_ASSIGN_SLOT</a>(1)
#undef X
<a href="slot.html">BOOST_PP_SLOT</a>(1) // expands to 10
</pre></div>
</body>
</html>