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>Struct template reverse_fold</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="../../proto/reference.html#header.boost.proto.transform.fold_hpp" title="Header <boost/proto/transform/fold.hpp>"> 10<link rel="prev" href="fold/impl.html" title="Struct template impl"> 11<link rel="next" href="fold_tree.html" title="Struct template fold_tree"> 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="fold/impl.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../proto/reference.html#header.boost.proto.transform.fold_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="fold_tree.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 25</div> 26<div class="refentry"> 27<a name="boost.proto.reverse_fold"></a><div class="titlepage"></div> 28<div class="refnamediv"> 29<h2><span class="refentrytitle">Struct template reverse_fold</span></h2> 30<p>boost::proto::reverse_fold — 31 A <a class="link" href="../../PrimitiveTransform.html" title="Concept PrimitiveTransform">PrimitiveTransform</a> that is the same as the <code class="computeroutput"><a class="link" href="fold.html" title="Struct template fold">proto::fold<></a></code> 32 transform, except that it folds back-to-front instead of front-to-back. It uses the 33 <code class="computeroutput"> 34 <a class="link" href="../../proto/reference.html#boost.proto._reverse">proto::_reverse</a> 35 </code> callable <a class="link" href="../../PolymorphicFunctionObject.html" title="Concept PolymorphicFunctionObject">PolymorphicFunctionObject</a> to create a 36 <code class="computeroutput">fusion::reverse_view<></code> of the sequence before invoking 37 <code class="computeroutput">fusion::fold<></code>. 38 </p> 39</div> 40<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 41<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="../../proto/reference.html#header.boost.proto.transform.fold_hpp" title="Header <boost/proto/transform/fold.hpp>">boost/proto/transform/fold.hpp</a>> 42 43</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Sequence<span class="special">,</span> <span class="keyword">typename</span> State0<span class="special">,</span> <span class="keyword">typename</span> Fun<span class="special">></span> 44<span class="keyword">struct</span> <a class="link" href="reverse_fold.html" title="Struct template reverse_fold">reverse_fold</a> <span class="special">:</span> <span class="keyword"></span> <a class="link" href="fold.html" title="Struct template fold">proto::fold</a><span class="special"><</span> <a class="link" href="../../proto/reference.html#boost.proto._reverse">proto::_reverse</a><span class="special">(</span><span class="identifier">Sequence</span><span class="special">)</span><span class="special">,</span> <span class="identifier">State0</span><span class="special">,</span> <span class="identifier">Fun</span> <span class="special">></span> <span class="special">{</span> 45<span class="special">}</span><span class="special">;</span></pre></div> 46</div> 47<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 48<td align="left"></td> 49<td align="right"><div class="copyright-footer">Copyright © 2008 Eric Niebler<p> 50 Distributed under the Boost Software License, Version 1.0. (See accompanying 51 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>) 52 </p> 53</div></td> 54</tr></table> 55<hr> 56<div class="spirit-nav"> 57<a accesskey="p" href="fold/impl.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../proto/reference.html#header.boost.proto.transform.fold_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="fold_tree.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 58</div> 59</body> 60</html> 61
