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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_ENUM_TRAILING_PARAMS_Z</title>
<link rel="stylesheet" type="text/css" href="../styles.css">
</head>
<body>
<div style="margin-left: 0px;">
The <b>BOOST_PP_ENUM_TRAILING_PARAMS_Z</b> macro generates a comma-separated list of parameters with a leading comma.&nbsp;
It reenters <b>BOOST_PP_REPEAT</b> with maximum efficiency.
</div>
<h4>Usage</h4>
<div class="code">
<b>BOOST_PP_ENUM_TRAILING_PARAMS_Z</b>(<i>z</i>, <i>count</i>, <i>param</i>)
</div>
<h4>Arguments</h4>
<dl>
<dt>z</dt>
<dd>
The next available <b>BOOST_PP_REPEAT</b> dimension.
</dd>
<dt>count</dt>
<dd>
The number of parameters to generate.&nbsp;
Valid values range from <i>0</i> to <b>BOOST_PP_LIMIT_REPEAT</b>.
</dd>
<dt>param</dt>
<dd>
The text of the parameter.&nbsp;
<b>BOOST_PP_ENUM_TRAILING_PARAMS_Z</b> concatenates numbers ranging from <i>0</i> to <i>count</i> - <i>1</i>
to generate parameters.
</dd>
</dl>
<h4>Remarks</h4>
<div>
This macro expands to the comma-separated sequence:
<div>
, <i>param</i> ## <i>0</i>, <i>param</i> ## <i>1</i>, ... <i>param</i> ## <i>count</i> - <i>1</i>
</div>
</div>
<h4>See Also</h4>
<ul>
<li><a href="enum_trailing_params.html">BOOST_PP_ENUM_TRAILING_PARAMS</a></li>
<li><a href="limit_repeat.html">BOOST_PP_LIMIT_REPEAT</a></li>
</ul>
<h4>Requirements</h4>
<div>
<b>Header:</b> &nbsp;<a href="../headers/repetition/enum_trailing_params.hpp.html">&lt;boost/preprocessor/repetition/enum_trailing_params.hpp&gt;</a>
</div>
<h4>Sample Code</h4>
<div id="sample"><pre>
#include &lt;<a href="../headers/repetition/enum_trailing_params.hpp.html">boost/preprocessor/repetition/enum_trailing_params.hpp</a>&gt;
#include &lt;<a href="../headers/repetition/repeat.hpp.html">boost/preprocessor/repetition/repeat.hpp</a>&gt;
#define MACRO(z, n, _) \
template&lt; \
class <a href="enum_trailing_params_z.html">BOOST_PP_ENUM_TRAILING_PARAMS_Z</a>(z, n, class T) \
&gt; class X ## n { \
/* ... */ \
}; \
/**/
<a href="repeat.html">BOOST_PP_REPEAT</a>(2, MACRO, nil)
/*
expands to...
template&lt;class&gt; class X0 { };
template&lt;class, class T0&gt; class X1 { };
*/
</pre></div>
</body>
</html>