<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>Comparison</title> <link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.75.2"> <link rel="home" href="../../../index.html" title="Chapter 1. Fusion 2.0"> <link rel="up" href="../operator.html" title="Operator"> <link rel="prev" href="i_o/out.html" title="out"> <link rel="next" href="comparison/equal.html" title="equal"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table cellpadding="2" width="100%"><tr> <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td> <td align="center"><a href="../../../../../../../index.html">Home</a></td> <td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td> <td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> <td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> <td align="center"><a href="../../../../../../../more/index.htm">More</a></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="i_o/out.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../operator.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="comparison/equal.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> </div> <div class="section"> <div class="titlepage"><div><div><h4 class="title"> <a name="fusion.sequence.operator.comparison"></a><a class="link" href="comparison.html" title="Comparison">Comparison</a> </h4></div></div></div> <div class="toc"><dl> <dt><span class="section"><a href="comparison/equal.html">equal</a></span></dt> <dt><span class="section"><a href="comparison/not_equal.html">not equal</a></span></dt> <dt><span class="section"><a href="comparison/less_than.html">less than</a></span></dt> <dt><span class="section"><a href="comparison/less_than_equal.html">less than equal</a></span></dt> <dt><span class="section"><a href="comparison/greater_than.html">greater than</a></span></dt> <dt><span class="section"><a href="comparison/greater_than_equal.html">greater than equal</a></span></dt> </dl></div> <p> The Comparison operators: <code class="computeroutput"><span class="special">==</span></code>, <code class="computeroutput"><span class="special">!=</span></code>, <code class="computeroutput"><span class="special"><</span></code>, <code class="computeroutput"><span class="special"><=</span></code>, <code class="computeroutput"><span class="special">>=</span></code> and <code class="computeroutput"><span class="special">>=</span></code> work generically on all Fusion sequences. Comparison operators are "short- circuited": elementary comparisons start from the first elements and are performed only until the result is clear. </p> <a name="fusion.sequence.operator.comparison.header"></a><h6> <a name="id942147"></a> <a class="link" href="comparison.html#fusion.sequence.operator.comparison.header">Header</a> </h6> <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">sequence</span><span class="special">/</span><span class="identifier">comparison</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">fusion</span><span class="special">/</span><span class="identifier">include</span><span class="special">/</span><span class="identifier">comparison</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> </pre> </div> <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> <td align="left"></td> <td align="right"><div class="copyright-footer">Copyright © 2001-2007 Joel de Guzman, Dan Marsden, Tobias Schwinger<p> Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) </p> </div></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="i_o/out.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../operator.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="comparison/equal.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>