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lib cleanup

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[SVN r15693]
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Paul Mensonides
2002-10-03 22:13:37 +00:00
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commit 4bb690a819
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<html>
<head>
<title>BOOST_PP_TUPLE_EAT</title>
<link rel="stylesheet" type="text/css" href="../styles.css">
</head>
<body>
<div style="margin-left: 0px;">
The <b>BOOST_PP_TUPLE_EAT</b> macro expands to a macro that eats a <i>tuple</i> of the specified size.
</div>
<h4>Usage</h4>
<div class="code">
<b>BOOST_PP_TUPLE_EAT</b>(<i>size</i>)
</div>
<h4>Arguments</h4>
<dl>
<dt>size</dt>
<dd>
The size of the <i>tuple</i> to be eaten.&nbsp;
Valid <i>tuple</i> sizes range from <i>0</i> to <b>BOOST_PP_LIMIT_TUPLE</b>.&nbsp;
</dd>
</dl>
<h4>Remarks</h4>
<div>
The <i>size</i> argument must be the actual size of the <i>tuple</i>.
</div>
<h4>See Also</h4>
<ul>
<li><a href="limit_tuple.html">BOOST_PP_LIMIT_TUPLE</a></li>
</ul>
<h4>Requirements</h4>
<div>
<b>Header:</b> &nbsp;<a href="../headers/tuple/eat.hpp.html">&lt;boost/preprocessor/tuple/eat.hpp&gt;</a>
</div>
<h4>Sample Code</h4>
<div><pre>
#include &lt;<a href="../headers/control/if.hpp.html">boost/preprocessor/control/if.hpp</a>&gt;
#include &lt;<a href="../headers/tuple/eat.hpp.html">boost/preprocessor/tuple/eat.hpp</a>&gt;
#define OP(a, b) (a b)
#define MACRO(n) <a href="if.html">BOOST_PP_IF</a>(n, OP, <a href="tuple_eat.html">BOOST_PP_TUPLE_EAT</a>(2))(1, 2)
MACRO(0) // expands to nothing
MACRO(1) // expands to (1, 2)
</pre></div>
</body>
</html>