Planet
navi homePPSaboutscreenshotsdownloaddevelopmentforum

source: downloads/boost_1_34_1/libs/mpl/doc/refmanual/replace.html @ 29

Last change on this file since 29 was 29, checked in by landauf, 17 years ago

updated boost from 1_33_1 to 1_34_1
File size: 8.7 KB
Line 
1<?xml version="1.0" encoding="utf-8" ?>
2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
3<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
4<!-- Copyright Aleksey Gurtovoy 2006. Distributed under the Boost -->
5<!-- Software License, Version 1.0. (See accompanying -->
6<!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
7<head>
8<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
9<meta name="generator" content="Docutils 0.3.6: http://docutils.sourceforge.net/" />
10<title>The MPL Reference Manual: replace</title>
11<link rel="stylesheet" href="../style.css" type="text/css" />
12</head>
13<body class="docframe refmanual">
14<table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./transform.html" class="navigation-link">Prev</a>&nbsp;<a href="./replace-if.html" class="navigation-link">Next</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./transform.html" class="navigation-link">Back</a>&nbsp;<a href="./replace-if.html" class="navigation-link">Along</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./transformation-algorithms.html" class="navigation-link">Up</a>&nbsp;<a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
15<td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./algorithms.html" class="navigation-link">Algorithms</a> / <a href="./transformation-algorithms.html" class="navigation-link">Transformation Algorithms</a> / <a href="./replace.html" class="navigation-link">replace</a></td>
16</tr></table><div class="header-separator"></div>
17<div class="section" id="replace">
18<h1><a class="toc-backref" href="./transformation-algorithms.html#id417" name="replace">replace</a></h1>
19<div class="section" id="replace-synopsis">
20<h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
21<pre class="literal-block">
22template&lt;
23      typename Sequence
24    , typename OldType
25    , typename NewType
26    , typename In = <em>unspecified</em>
27    &gt;
28struct <a href="./replace.html" class="identifier">replace</a>
29{
30    typedef <em>unspecified</em> type;
31};
32</pre>
33</div>
34<div class="section" id="replace-description">
35<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
36<p>Returns a copy of the original sequence where every type identical to <tt class="literal"><span class="pre">OldType</span></tt> 
37has been replaced with <tt class="literal"><span class="pre">NewType</span></tt>.</p>
38<p>[<em>Note:</em> This wording applies to a no-inserter version(s) of the algorithm. See the
39<cite>Expression semantics</cite> subsection for a precise specification of the algorithm's
40details in all cases — <em>end note</em>]</p>
41</div>
42<div class="section" id="replace-header">
43<h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
44<pre class="literal-block">
45#include &lt;<a href="../../../../boost/mpl/replace.hpp" class="header">boost/mpl/replace.hpp</a>&gt;
46</pre>
47</div>
48<div class="section" id="replace-model-of">
49<h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
50<p><a class="reference" href="./reversible-algorithm.html">Reversible Algorithm</a></p>
51</div>
52<div class="section" id="replace-parameters">
53<h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
54<table border="1" class="table">
55<colgroup>
56<col width="19%" />
57<col width="43%" />
58<col width="38%" />
59</colgroup>
60<thead valign="bottom">
61<tr><th>Parameter</th>
62<th>Requirement</th>
63<th>Description</th>
64</tr>
65</thead>
66<tbody valign="top">
67<tr><td><tt class="literal"><span class="pre">Sequence</span></tt></td>
68<td><a class="reference" href="./forward-sequence.html">Forward Sequence</a></td>
69<td>A original sequence.</td>
70</tr>
71<tr><td><tt class="literal"><span class="pre">OldType</span></tt></td>
72<td>Any type</td>
73<td>A type to be replaced.</td>
74</tr>
75<tr><td><tt class="literal"><span class="pre">NewType</span></tt></td>
76<td>Any type</td>
77<td>A type to replace with.</td>
78</tr>
79<tr><td><tt class="literal"><span class="pre">In</span></tt></td>
80<td><a class="reference" href="./inserter.html">Inserter</a></td>
81<td>An inserter.</td>
82</tr>
83</tbody>
84</table>
85</div>
86<div class="section" id="replace-expression-semantics">
87<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
88<p>The semantics of an expression are defined only
89where they differ from, or are not defined in <a class="reference" href="./reversible-algorithm.html">Reversible Algorithm</a>.</p>
90<p>For any <a class="reference" href="./forward-sequence.html">Forward Sequence</a> <tt class="literal"><span class="pre">s</span></tt>, an <a class="reference" href="./inserter.html">Inserter</a> <tt class="literal"><span class="pre">in</span></tt>, and arbitrary types <tt class="literal"><span class="pre">x</span></tt> and <tt class="literal"><span class="pre">y</span></tt>:</p>
91<pre class="literal-block">
92typedef <a href="./replace.html" class="identifier">replace</a>&lt;s,x,y,in&gt;::type r;
93</pre>
94<table class="field-list" frame="void" rules="none">
95<col class="field-name" />
96<col class="field-body" />
97<tbody valign="top">
98<tr class="field"><th class="field-name">Return type:</th><td class="field-body">A type.</td>
99</tr>
100<tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p>
101<pre class="last literal-block">
102typedef <a href="./replace-if.html" class="identifier">replace_if</a>&lt; s,y,is_same&lt;_,x&gt;,in &gt;::type r;
103</pre>
104</td>
105</tr>
106</tbody>
107</table>
108</div>
109<div class="section" id="replace-complexity">
110<h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3>
111<p>Linear. Performs exactly <tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a>&lt;s&gt;::value</span></tt> comparisons for
112identity / insertions.</p>
113</div>
114<div class="section" id="replace-example">
115<h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
116<pre class="literal-block">
117typedef <a href="./vector.html" class="identifier">vector</a>&lt;int,float,char,float,float,double&gt; types;
118typedef <a href="./vector.html" class="identifier">vector</a>&lt;int,double,char,double,double,double&gt; expected;
119typedef <a href="./replace.html" class="identifier">replace</a>&lt; types,float,double &gt;::type result;
120
121<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>&lt; result,expected > ));
122</pre>
123</div>
124<div class="section" id="replace-see-also">
125<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
126<p><a class="reference" href="./transformation-algorithms.html">Transformation Algorithms</a>, <a class="reference" href="./reversible-algorithm.html">Reversible Algorithm</a>, <a class="refentry reference" href="./reverse-replace.html"><tt class="refentry literal"><span class="pre">reverse_replace</span></tt></a>, <a class="refentry reference" href="./replace-if.html"><tt class="refentry literal"><span class="pre">replace_if</span></tt></a>, <a class="refentry reference" href="./remove.html"><tt class="refentry literal"><span class="pre">remove</span></tt></a>, <a class="refentry reference" href="./transform.html"><tt class="refentry literal"><span class="pre">transform</span></tt></a></p>
127<!-- modtime: November 10, 2004 04:33:09 +0000 -->
128<!-- Algorithms/Transformation Algorithms//replace_if |50 -->
129</div>
130</div>
131
132<div class="footer-separator"></div>
133<table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./transform.html" class="navigation-link">Prev</a>&nbsp;<a href="./replace-if.html" class="navigation-link">Next</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./transform.html" class="navigation-link">Back</a>&nbsp;<a href="./replace-if.html" class="navigation-link">Along</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./transformation-algorithms.html" class="navigation-link">Up</a>&nbsp;<a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
134</tr></table></body>
135</html>
Note: See TracBrowser for help on using the repository browser.