Files
preprocessor/doc/reference/repeat.htm
Vesa Karvonen def1674ee7 Header info
[SVN r13970]
2002-05-17 21:24:59 +00:00

81 lines
2.6 KiB
HTML

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link rel="stylesheet" type="text/css" href="../../../../boost.css">
<title>Boost.Preprocessor - Reference</title>
</head>
<body link="#0000ff" vlink="#800080">
<table border="0" cellpadding="7" cellspacing="0" width="100%" summary=
"header">
<tr>
<td valign="top" width="300">
<h3><a href="../../../../index.htm"><img height="86" width="277" alt="C++ Boost" src="../../../../c++boost.gif" border="0"></a></h3>
</td>
<td valign="top">
<h1 align="center">Boost.Preprocessor</h1>
<h2 align="center">Header &lt;<a href="../../../../boost/preprocessor/repeat.hpp">boost/preprocessor/repeat.hpp</a>&gt;</h2>
</td>
</tr>
</table>
<hr>
<a href="min.htm">Prev</a> <a href="repeat_2nd.htm">Next</a> <a href="index.htm#Macros">Macros</a> <a href="index.htm#Headers">Headers</a>
<hr>
<h3><a name="BOOST_PP_REPEAT">#define BOOST_PP_REPEAT</a>(COUNT,MACRO,DATA)</h3>
<p>Repeats the macro <code>MACRO(INDEX,DATA)</code> for <code>INDEX = [0,COUNT)</code>.</p>
<p>In other words, expands to the sequence:</p>
<pre>
MACRO(0,DATA) MACRO(1,DATA) ... MACRO(<a href="dec.htm#BOOST_PP_DEC">BOOST_PP_DEC</a>(COUNT),DATA)
</pre>
<p>For example,</p>
<pre>
#define TEST(INDEX,DATA) DATA(INDEX);
<a href="repeat.htm#BOOST_PP_REPEAT">BOOST_PP_REPEAT</a>(3,TEST,X)
</pre>
<p>expands to:</p>
<pre>
X(0); X(1); X(2);
</pre>
<h3>2D and 3D repetition</h3>
<p>2D and 3D repetition are supported with the <a href="repeat_2nd.htm#BOOST_PP_REPEAT_2ND">BOOST_PP_REPEAT_2ND</a>() and
<a href="repeat_3rd.htm#BOOST_PP_REPEAT_3RD">BOOST_PP_REPEAT_3RD</a>() macros.</p>
<h3>Example</h3>
<ul>
<li><a href="../../example/duffs_device.c">duffs_device.c</a></li>
<li><a href="../../example/repeat_2d.c">repeat_2d.c</a></li>
</ul>
<h3>See</h3>
<ul>
<li><a href="for.htm#BOOST_PP_FOR">BOOST_PP_FOR</a>()</li>
<li><a href="limits.htm#BOOST_PP_LIMIT_MAG">BOOST_PP_LIMIT_MAG</a></li>
</ul>
<hr>
<a href="min.htm">Prev</a> <a href="repeat_2nd.htm">Next</a> <a href="index.htm#Macros">Macros</a> <a href="index.htm#Headers">Headers</a>
<hr>
<p>Revised <!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %b %Y" startspan --><!--webbot bot="Timestamp" endspan i-checksum="15246" --></p>
<p><i>&copy; Copyright <a href="http://www.housemarque.com">Housemarque Oy</a> 2002</i></p>
<p>Permission to copy, use, modify, sell and distribute this document is granted
provided this copyright notice appears in all copies. This document is provided
"as is" without express or implied warranty, and with no claim as to its suitability
for any purpose.</p>
</body></html>