1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5<title>Function operator-</title> 6<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> 7<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 8<link rel="home" href="../../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> 9<link rel="up" href="../../mpi/reference.html#header.boost.mpi.group_hpp" title="Header <boost/mpi/group.hpp>"> 10<link rel="prev" href="operator_.html" title="Function operator&"> 11<link rel="next" href="inplace_t.html" title="Struct template inplace_t"> 12</head> 13<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 14<table cellpadding="2" width="100%"><tr> 15<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td> 16<td align="center"><a href="../../../../index.html">Home</a></td> 17<td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td> 18<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 19<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 20<td align="center"><a href="../../../../more/index.htm">More</a></td> 21</tr></table> 22<hr> 23<div class="spirit-nav"> 24<a accesskey="p" href="operator_.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../mpi/reference.html#header.boost.mpi.group_hpp"><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="inplace_t.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 25</div> 26<div class="refentry"> 27<a name="boost.mpi.operator-"></a><div class="titlepage"></div> 28<div class="refnamediv"> 29<h2><span class="refentrytitle">Function operator-</span></h2> 30<p>boost::mpi::operator- — Computes the difference between two process groups. </p> 31</div> 32<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 33<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../mpi/reference.html#header.boost.mpi.group_hpp" title="Header <boost/mpi/group.hpp>">boost/mpi/group.hpp</a>> 34 35</span> 36<span class="identifier">BOOST_MPI_DECL</span> <a class="link" href="group.html" title="Class group">group</a> <span class="keyword">operator</span><span class="special">-</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="group.html" title="Class group">group</a> <span class="special">&</span> g1<span class="special">,</span> <span class="keyword">const</span> <a class="link" href="group.html" title="Class group">group</a> <span class="special">&</span> g2<span class="special">)</span><span class="special">;</span></pre></div> 37<div class="refsect1"> 38<a name="id-1.3.27.7.14.9.4"></a><h2>Description</h2> 39<p>This routine returns a new <code class="computeroutput">group</code> that contains all processes that are in group <code class="computeroutput">g1</code> but not in group <code class="computeroutput">g2</code>, ordered in the same way as <code class="computeroutput">g1</code>. Equivalent to <code class="computeroutput">MPI_Group_difference</code>. </p> 40</div> 41</div> 42<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 43<td align="left"></td> 44<td align="right"><div class="copyright-footer">Copyright © 2005-2007 Douglas Gregor, 45 Matthias Troyer, Trustees of Indiana University<p> 46 Distributed under the Boost Software License, Version 1.0. (See accompanying 47 file LICENSE_1_0.txt or copy at <ulink url="http://www.boost.org/LICENSE_1_0.txt"> 48 http://www.boost.org/LICENSE_1_0.txt </ulink>) 49 </p> 50</div></td> 51</tr></table> 52<hr> 53<div class="spirit-nav"> 54<a accesskey="p" href="operator_.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../mpi/reference.html#header.boost.mpi.group_hpp"><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="inplace_t.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 55</div> 56</body> 57</html> 58
