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preliminary set support

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[SVN r15908]
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Paul Mensonides
2002-10-13 05:47:23 +00:00
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<html>
<head>
<title>BOOST_PP_SET_TRANSFORM_S</title>
<link rel="stylesheet" type="text/css" href="../styles.css">
</head>
<body>
<div style="margin-left: 0px;">
The <b>BOOST_PP_SET_TRANSFORM_S</b> macro transforms each element in a <i>set</i> according to a supplied transformation.&nbsp;
It reenters <b>BOOST_PP_SET_FOLD_LEFT</b> with maximum efficiency.
</div>
<h4>Usage</h4>
<div class="code">
<b>BOOST_PP_SET_TRANSFORM_S</b>(<i>s</i>, <i>op</i>, <i>data</i>, <i>set</i>)
</div>
<h4>Arguments</h4>
<dl>
<dt>s</dt>
<dd>
The next available <b>BOOST_PP_SET_FOLD_LEFT</b> fold step.
</dd>
<dt>op</dt>
<dd>
A ternary predicate of the form <i>op</i>(<i>s</i>, <i>data</i>, <i>elem</i>).&nbsp;
This transformation is expanded by <b>BOOST_PP_SET_TRANSFORM</b> for each element in <i>set</i> with the next available <b>BOOST_PP_SET_FOLD_LEFT</b> fold step,
the auxiliary <i>data</i>, and the current element in <i>set</i>.&nbsp;
</dd>
<dt>data</dt>
<dd>
Auxiliary data passed to <i>pred</i>.
</dd>
<dt>set</dt>
<dd>
The <i>set</i> to be transformed.
</dd>
</dl>
<h4>Remarks</h4>
<div>
This macro expands <i>op</i> for each element in <i>set</i>.&nbsp;
It builds a new <i>set</i> out of the results of each call.&nbsp;
If, for example, <i>set</i> is (<i>a</i>)(<i>b</i>)(<i>c</i>),
this macro expands to...
<div>
(<i>op</i>(<i>d</i>, <i>data</i>, <i>a</i>))(<i>op</i>(<i>d</i>, <i>data</i>, <i>b</i>))(<i>op</i>(<i>d</i>, <i>data</i>, <i>c</i>))
</div>
</div>
<h4>See Also</h4>
<ul>
<li><a href="set_transform.html">BOOST_PP_SET_TRANSFORM</a></li>
</ul>
<h4>Requirements</h4>
<div>
<b>Header:</b> &nbsp;<a href="../headers/set/transform.hpp.html">&lt;boost/preprocessor/set/transform.hpp&gt;</a>
</div>
</body>
</html>