1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>replace</title> 5<link rel="stylesheet" href="../../../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../../../index.html" title="Chapter 1. Fusion 2.2"> 8<link rel="up" href="../functions.html" title="Functions"> 9<link rel="prev" href="transform.html" title="transform"> 10<link rel="next" href="replace_if.html" title="replace_if"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="transform.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.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="replace_if.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h5 class="title"> 27<a name="fusion.algorithm.transformation.functions.replace"></a><a class="link" href="replace.html" title="replace">replace</a> 28</h5></div></div></div> 29<h6> 30<a name="fusion.algorithm.transformation.functions.replace.h0"></a> 31 <span class="phrase"><a name="fusion.algorithm.transformation.functions.replace.description"></a></span><a class="link" href="replace.html#fusion.algorithm.transformation.functions.replace.description">Description</a> 32 </h6> 33<p> 34 Replaces each value within a sequence of a given type and value with 35 a new value. 36 </p> 37<h6> 38<a name="fusion.algorithm.transformation.functions.replace.h1"></a> 39 <span class="phrase"><a name="fusion.algorithm.transformation.functions.replace.synopsis"></a></span><a class="link" href="replace.html#fusion.algorithm.transformation.functions.replace.synopsis">Synopsis</a> 40 </h6> 41<pre class="programlisting"><span class="keyword">template</span><span class="special"><</span> 42 <span class="keyword">typename</span> <span class="identifier">Sequence</span><span class="special">,</span> 43 <span class="keyword">typename</span> <span class="identifier">T</span> 44 <span class="special">></span> 45<span class="keyword">typename</span> <a class="link" href="../metafunctions/replace.html" title="replace"><code class="computeroutput"><span class="identifier">result_of</span><span class="special">::</span><span class="identifier">replace</span></code></a><span class="special"><</span><span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">,</span> <span class="identifier">T</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">replace</span><span class="special">(</span> 46 <span class="identifier">Sequence</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">seq</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">old_value</span><span class="special">,</span> <span class="identifier">T</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">new_value</span><span class="special">);</span> 47</pre> 48<div class="table"> 49<a name="fusion.algorithm.transformation.functions.replace.t0"></a><p class="title"><b>Table 1.70. Parameters</b></p> 50<div class="table-contents"><table class="table" summary="Parameters"> 51<colgroup> 52<col> 53<col> 54<col> 55</colgroup> 56<thead><tr> 57<th> 58 <p> 59 Parameter 60 </p> 61 </th> 62<th> 63 <p> 64 Requirement 65 </p> 66 </th> 67<th> 68 <p> 69 Description 70 </p> 71 </th> 72</tr></thead> 73<tbody> 74<tr> 75<td> 76 <p> 77 <code class="computeroutput"><span class="identifier">seq</span></code> 78 </p> 79 </td> 80<td> 81 <p> 82 A model of <a class="link" href="../../../sequence/concepts/forward_sequence.html" title="Forward Sequence">Forward 83 Sequence</a>, <code class="computeroutput"><span class="identifier">e</span> 84 <span class="special">==</span> <span class="identifier">old_value</span></code> 85 is a valid expression, convertible to <code class="computeroutput"><span class="keyword">bool</span></code>, 86 for each element <code class="computeroutput"><span class="identifier">e</span></code> 87 in <code class="computeroutput"><span class="identifier">seq</span></code> with 88 type convertible to <code class="computeroutput"><span class="identifier">T</span></code> 89 </p> 90 </td> 91<td> 92 <p> 93 Operation's argument 94 </p> 95 </td> 96</tr> 97<tr> 98<td> 99 <p> 100 <code class="computeroutput"><span class="identifier">old_value</span></code> 101 </p> 102 </td> 103<td> 104 <p> 105 Any type 106 </p> 107 </td> 108<td> 109 <p> 110 Value to replace 111 </p> 112 </td> 113</tr> 114<tr> 115<td> 116 <p> 117 <code class="computeroutput"><span class="identifier">new_value</span></code> 118 </p> 119 </td> 120<td> 121 <p> 122 Any type 123 </p> 124 </td> 125<td> 126 <p> 127 Replacement value 128 </p> 129 </td> 130</tr> 131</tbody> 132</table></div> 133</div> 134<br class="table-break"><h6> 135<a name="fusion.algorithm.transformation.functions.replace.h2"></a> 136 <span class="phrase"><a name="fusion.algorithm.transformation.functions.replace.expression_semantics"></a></span><a class="link" href="replace.html#fusion.algorithm.transformation.functions.replace.expression_semantics">Expression 137 Semantics</a> 138 </h6> 139<pre class="programlisting"><a class="link" href="replace.html" title="replace"><code class="computeroutput"><span class="identifier">replace</span></code></a><span class="special">(</span><span class="identifier">seq</span><span class="special">,</span> <span class="identifier">old_value</span><span class="special">,</span> <span class="identifier">new_value</span><span class="special">);</span> 140</pre> 141<p> 142 <span class="bold"><strong>Return type</strong></span>: A model of <a class="link" href="../../../sequence/concepts/forward_sequence.html" title="Forward Sequence">Forward 143 Sequence</a>. 144 </p> 145<p> 146 <span class="bold"><strong>Semantics</strong></span>: Returns a new sequence with 147 all the values of <code class="computeroutput"><span class="identifier">seq</span></code> 148 with <code class="computeroutput"><span class="identifier">new_value</span></code> assigned 149 to elements with the same type and equal to <code class="computeroutput"><span class="identifier">old_value</span></code>. 150 </p> 151<h6> 152<a name="fusion.algorithm.transformation.functions.replace.h3"></a> 153 <span class="phrase"><a name="fusion.algorithm.transformation.functions.replace.complexity"></a></span><a class="link" href="replace.html#fusion.algorithm.transformation.functions.replace.complexity">Complexity</a> 154 </h6> 155<p> 156 Constant. Returns a view which is lazily evaluated. 157 </p> 158<h6> 159<a name="fusion.algorithm.transformation.functions.replace.h4"></a> 160 <span class="phrase"><a name="fusion.algorithm.transformation.functions.replace.header"></a></span><a class="link" href="replace.html#fusion.algorithm.transformation.functions.replace.header">Header</a> 161 </h6> 162<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">algorithm</span><span class="special">/</span><span class="identifier">transformation</span><span class="special">/</span><span class="identifier">replace</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 163<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">replace</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 164</pre> 165<h6> 166<a name="fusion.algorithm.transformation.functions.replace.h5"></a> 167 <span class="phrase"><a name="fusion.algorithm.transformation.functions.replace.example"></a></span><a class="link" href="replace.html#fusion.algorithm.transformation.functions.replace.example">Example</a> 168 </h6> 169<pre class="programlisting"><span class="identifier">assert</span><span class="special">(</span><a class="link" href="replace.html" title="replace"><code class="computeroutput"><span class="identifier">replace</span></code></a><span class="special">(</span><a class="link" href="../../../container/generation/functions/make_vector.html" title="make_vector"><code class="computeroutput"><span class="identifier">make_vector</span></code></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">),</span> <span class="number">2</span><span class="special">,</span> <span class="number">3</span><span class="special">)</span> <span class="special">==</span> <a class="link" href="../../../container/generation/functions/make_vector.html" title="make_vector"><code class="computeroutput"><span class="identifier">make_vector</span></code></a><span class="special">(</span><span class="number">1</span><span class="special">,</span><span class="number">3</span><span class="special">));</span> 170</pre> 171</div> 172<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 173<td align="left"></td> 174<td align="right"><div class="copyright-footer">Copyright © 2001-2006, 2011, 2012 Joel de Guzman, 175 Dan Marsden, Tobias Schwinger<p> 176 Distributed under the Boost Software License, Version 1.0. (See accompanying 177 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>) 178 </p> 179</div></td> 180</tr></table> 181<hr> 182<div class="spirit-nav"> 183<a accesskey="p" href="transform.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../functions.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="replace_if.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 184</div> 185</body> 186</html> 187
