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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
parent ae584c68b2
commit 4bb690a819
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<html>
<head>
<title>BOOST_PP_COMMA</title>
<link rel="stylesheet" type="text/css" href="../styles.css">
</head>
<body>
<div style="margin-left: 0px;">
The <b>BOOST_PP_COMMA</b> macro expands to a comma.
</div>
<h4>Usage</h4>
<div class="code">
<b>BOOST_PP_COMMA</b>()
</div>
<h4>Remarks</h4>
<div>
The preprocessor interprets commas as argument separators in macro invocations.&nbsp;
Because of this, commas require special handling.
</div>
<h4>Requirements</h4>
<div>
<b>Header:</b> &nbsp;<a href="../headers/punctuation/comma.hpp.html">&lt;boost/preprocessor/punctuation/comma.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/facilities/empty.hpp.html">boost/preprocessor/facilities/empty.hpp</a>&gt;
#include &lt;<a href="../headers/punctuation/comma.hpp.html">boost/preprocessor/punctuation/comma.hpp</a>&gt;
<a href="if.html">BOOST_PP_IF</a>(1, <a href="comma.html">BOOST_PP_COMMA</a>, <a href="empty.html">BOOST_PP_EMPTY</a>)() // expands to ,
</pre></div>
</body>
</html>