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<html>
<head>
<title>BOOST_PP_SEQ_FOR_EACH</title>
<link rel="stylesheet" type="text/css" href="../styles.css">
</head>
<body>
<div style="margin-left: 0px;">
The <b>BOOST_PP_SEQ_FOR_EACH</b> macro repeats a macro for each element in a <i>seq</i>.
</div>
<h4>
Usage
</h4>
<div class="code">
<b>BOOST_PP_SEQ_FOR_EACH</b>(<i>macro</i>, <i>data</i>, <i>seq</i>)
</div>
<h4>
Arguments
</h4>
<dl>
<dt>macro</dt>
<dd>
A ternary macro of the form <i>macro</i>(<i>r</i>, <i>data</i>, <i>elem</i>).
This macro is expanded by <b>BOOST_PP_SEQ_FOR_EACH</b> with each element in <i>seq</i>.
It is expanded with the next available <b>BOOST_PP_FOR</b> repetition, the
auxiliary <i>data</i>, and the current element.
</dd>
<dt>data</dt>
<dd>
Auxiliary data passed to <i>macro</i>.
</dd>
<dt>seq</dt>
<dd>
The <i>seq</i> for which <i>macro</i> will be invoked on each element.
</dd>
</dl>
<h4>
Remarks
</h4>
<div>
This macro is a repetition construct. If <i>seq</i> is (<i>a</i>)(<i>b</i>)(<i>c</i>),
it expands to the sequence:
<div>
<i>macro</i>(<i>r</i>, <i>data</i>, <i>a</i>) <i>macro</i>(<i>r</i>, <i>data</i>,
<i>b</i>) <i>macro</i>(<i>r</i>, <i>data</i>, <i>c</i>)
</div>
</div>
<div>
For maximum efficiency, use <b>BOOST_PP_SEQ_FOR_EACH_R</b>.
</div>
<h4>
See Also
</h4>
<ul>
<li>
<a href="seq_for_each_r.html">BOOST_PP_SEQ_FOR_EACH_R</a></li>
</ul>
<h4>
Requirements
</h4>
<div>
<b>Header:</b> <a href="../headers/seq/for_each.html"><boost/preprocessor/seq/for_each.hpp></a>
</div>
<h4>
Sample Code
</h4>
<div>
<pre>
#include <<a href="../headers/cat.html">boost/preprocessor/cat.hpp</a>>
#include <<a href="../headers/seq/for_each.html">boost/preprocessor/seq/for_each.hpp</a>>
#define SEQ (w)(x)(y)(z)
#define MACRO(r, data, elem) <a href="cat.html">BOOST_PP_CAT</a>(elem, data)
<a href="seq_for_each.html">BOOST_PP_SEQ_FOR_EACH</a>(MACRO, _, SEQ) // expands to w_ x_ y_ z_
</pre>
</div>
<hr size="1">
<div style="margin-left: 0px;">
<i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i>
</br><i>© Copyright Paul Mensonides 2002</i>
</div>
<div style="margin-left: 0px;">
<p><small>Distributed under the Boost Software License, Version 1.0. (See
accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
copy at <a href=
"http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p>
</div>
</body>
</html>
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