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83 lines
3.4 KiB
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83 lines
3.4 KiB
HTML
<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<link rel="stylesheet" type="text/css" href="../../../../boost.css">
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<title>Boost.Preprocessor - Reference</title>
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</head>
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<body link="#0000ff" vlink="#800080">
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<table border="0" cellpadding="7" cellspacing="0" width="100%" summary=
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"header">
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<tr>
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<td valign="top" width="300">
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<h3><a href="../../../../index.htm"><img height="86" width="277" alt="C++ Boost" src="../../../../c++boost.gif" border="0"></a></h3>
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</td>
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<td valign="top">
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<h1 align="center">Boost.Preprocessor</h1>
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<h2 align="center">Header <<a href="../../../../boost/preprocessor/list/transform.hpp">boost/preprocessor/list/transform.hpp</a>></h2>
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</td>
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</tr>
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</table>
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<hr>
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<a href="list_to_tuple.htm">Prev</a> <a href="logical.htm">Next</a> <a href="index.htm#Macros">Macros</a> <a href="index.htm#Headers">Headers</a>
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<hr>
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<h3><a name="BOOST_PP_LIST_TRANSFORM">#define BOOST_PP_LIST_TRANSFORM</a>(OP,DATA,LIST)</h3>
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<p>Applies the macro <code>OP(D,DATA,X)</code> to each element <code>X</code>
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of the list producing a new list.</p>
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<p>In other words, expands to:</p>
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<pre>
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<a href="list_adt.htm#BOOST_PP_LIST_CONS">BOOST_PP_LIST_CONS</a>(OP(D,DATA,<a href="list_at.htm#BOOST_PP_LIST_AT">BOOST_PP_LIST_AT</a>(LIST,0)),
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<a href="list_adt.htm#BOOST_PP_LIST_CONS">BOOST_PP_LIST_CONS</a>(OP(D,DATA,<a href="list_at.htm#BOOST_PP_LIST_AT">BOOST_PP_LIST_AT</a>(LIST,1)),
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...
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<a href="list_adt.htm#BOOST_PP_LIST_CONS">BOOST_PP_LIST_CONS</a>(OP(D,DATA,<a href="list_at.htm#BOOST_PP_LIST_AT">BOOST_PP_LIST_AT</a>(LIST,<a href="dec.htm#BOOST_PP_DEC">BOOST_PP_DEC</a>(<a href="list_size.htm#BOOST_PP_LIST_SIZE">BOOST_PP_LIST_SIZE</a>(LIST)))),
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<a href="list_adt.htm#BOOST_PP_LIST_NIL">BOOST_PP_LIST_NIL</a>) ... ))
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</pre>
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<p>For example,</p>
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<pre>
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<a href="list_transform.htm#BOOST_PP_LIST_TRANSFORM">BOOST_PP_LIST_TRANSFORM</a>(<a href="arithmetic_add.htm#BOOST_PP_ADD_D">BOOST_PP_ADD_D</a>,2,<a href="tuple_to_list.htm#BOOST_PP_TUPLE_TO_LIST">BOOST_PP_TUPLE_TO_LIST</a>(2,(1,2)))
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</pre>
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<p>expands to the same as:</p>
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<pre>
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<a href="tuple_to_list.htm#BOOST_PP_TUPLE_TO_LIST">BOOST_PP_TUPLE_TO_LIST</a>(2,(3,4))
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</pre>
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<h3>Uses</h3>
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<ul>
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<li><a href="while.htm#BOOST_PP_WHILE">BOOST_PP_WHILE</a>() (see for explanation of the D parameter)</li>
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<li><a href="list_fold_right.htm#BOOST_PP_LIST_FOLD_RIGHT">BOOST_PP_LIST_FOLD_RIGHT</a>()</li>
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</ul>
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<h3>Test</h3>
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<ul>
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<li><a href="../../test/list_test.cpp">list_test.cpp</a></li>
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</ul>
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<hr>
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<h3><a name="BOOST_PP_LIST_TRANSFORM_D">#define BOOST_PP_LIST_TRANSFORM_D</a>(D,OP,DATA,LIST)</h3>
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<p>Can be used inside <a href="while.htm#BOOST_PP_WHILE">BOOST_PP_WHILE</a>().</p>
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<hr>
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<a href="list_to_tuple.htm">Prev</a> <a href="logical.htm">Next</a> <a href="index.htm#Macros">Macros</a> <a href="index.htm#Headers">Headers</a>
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<hr>
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<p>Revised <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %b %Y" startspan --><!--webbot bot="Timestamp" endspan i-checksum="15246" --></p>
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<p><i>© Copyright <a href="http://www.housemarque.com">Housemarque Oy</a> 2002</i></p>
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<p>Permission to copy, use, modify, sell and distribute this document is granted
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provided this copyright notice appears in all copies. This document is provided
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"as is" without express or implied warranty, and with no claim as to its suitability
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for any purpose.</p>
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</body></html>
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