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<html> <head> <title>BOOST_PP_SEQ_TRANSFORM</title> <link rel="stylesheet" type="text/css" href="../styles.css"> </head> <body> <div style="margin-left: 0px;"> The <b>BOOST_PP_SEQ_TRANSFORM</b> macro transforms each element in a <i>seq</i> according to a supplied transformation. </div> <h4> Usage </h4> <div class="code"> <b>BOOST_PP_SEQ_TRANSFORM</b>(<i>op</i>, <i>data</i>, <i>seq</i>) </div> <h4> Arguments </h4> <dl> <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_SEQ_TRANSFORM</b> for each element in <i>seq</i> with the next available <b>BOOST_PP_SEQ_FOLD_LEFT</b> fold step, the auxiliary <i>data</i>, and the current element in <i>seq</i>.&nbsp; </dd> <dt>data</dt> <dd> Auxiliary data passed to <i>pred</i>. </dd> <dt>seq</dt> <dd> The <i>seq</i> to be transformed. </dd> </dl> <h4> Remarks </h4> <div> This macro expands <i>op</i> for each element in <i>seq</i>.&nbsp; It builds a new <i>seq</i> out of the results of each call.&nbsp; If, for example, <i>seq</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> <div> For maximum efficiency, use <b>BOOST_PP_SEQ_TRANSFORM_S</b>. </div> <h4> See Also </h4> <ul> <li> <a href="seq_transform_s.html">BOOST_PP_SEQ_TRANSFORM_S</a></li> </ul> <h4> Requirements </h4> <div> <b>Header:</b> &nbsp;<a href="../headers/seq/transform.html">&lt;boost/preprocessor/seq/transform.hpp&gt;</a> </div> <h4> Sample Code </h4> <div> <pre> #include &lt;<a href="../headers/arithmetic/dec.html">boost/preprocessor/arithmetic/dec.hpp</a>&gt; #include &lt;<a href="../headers/seq/transform.html">boost/preprocessor/seq/transform.hpp</a>&gt; #define SEQ (1)(3)(2)(5) #define OP(s, data, elem) <a href="dec.html">BOOST_PP_DEC</a>(elem) <a href="seq_transform.html">BOOST_PP_SEQ_TRANSFORM</a>(OP, 3, SEQ) // expands to (0)(2)(1)(4) </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>