mirror of
https://github.com/boostorg/preprocessor.git
synced 2025-07-02 23:36:54 +02:00
66 lines
2.2 KiB
HTML
66 lines
2.2 KiB
HTML
<html>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
|
<title>Boost.Preprocessor - Reference</title>
|
|
</head>
|
|
<body bgcolor="#FFFFFF" 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">Reference</h2>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<hr>
|
|
|
|
<a href="identity.htm">Prev</a> <a href="inc.htm">Next</a> <a href="index.htm#Macros">Macros</a> <a href="index.htm#Headers">Headers</a>
|
|
<hr>
|
|
|
|
<h1>#include <<a href="../../../../boost/preprocessor/if.hpp">boost/preprocessor/if.hpp</a>></h1>
|
|
|
|
<hr>
|
|
|
|
<h2><a name="BOOST_PP_IF">#define BOOST_PP_IF</a>(COND,THEN,ELSE)</h2>
|
|
<p>Expands to <code>THEN</code> if <code>COND != 0</code> and <code>ELSE</code> if
|
|
<code>COND == 0</code>.</p>
|
|
|
|
<p><code>COND</code> must expand to an integer literal.</p>
|
|
|
|
<p>For example, <code><a href="if.htm#BOOST_PP_IF">BOOST_PP_IF</a>(0,1,2)</code> expands to <code>2</code>.</p>
|
|
|
|
<h3>See</h3>
|
|
<ul>
|
|
<li><a href="expr_if.htm#BOOST_PP_EXPR_IF">BOOST_PP_EXPR_IF</a>()</li>
|
|
</ul>
|
|
|
|
<h3>Test</h3>
|
|
<ul>
|
|
<li><a href="../../test/preprocessor_test.cpp">preprocessor_test.cpp</a></li>
|
|
</ul>
|
|
|
|
<hr>
|
|
|
|
<h2><a name="BOOST_PREPROCESSOR_IF">#define BOOST_PREPROCESSOR_IF</a>(C,T,E)</h2>
|
|
<p>Obsolete. Use <a href="if.htm#BOOST_PP_IF">BOOST_PP_IF</a>().</p>
|
|
<hr>
|
|
|
|
<a href="identity.htm">Prev</a> <a href="inc.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>© Copyright <a href="http://www.housemarque.com">Housemarque Oy</a> 2002</i></p>
|
|
|
|
<p><i>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.</i></p>
|
|
|
|
</body></html>
|