Planet
navi homePPSaboutscreenshotsdownloaddevelopmentforum

source: downloads/boost_1_33_1/libs/mpl/doc/refmanual/replace.html @ 13

Last change on this file since 13 was 12, checked in by landauf, 18 years ago

added boost
File size: 8.5 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<head>
5<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
6<meta name="generator" content="Docutils 0.3.6: http://docutils.sourceforge.net/" />
7<title>The MPL Reference Manual: replace</title>
8<link rel="stylesheet" href="../style.css" type="text/css" />
9</head>
10<body class="docframe refmanual">
11<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>
12<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>
13</tr></table><div class="header-separator"></div>
14<div class="section" id="replace">
15<h1><a class="toc-backref" href="./transformation-algorithms.html#id417" name="replace">replace</a></h1>
16<div class="section" id="replace-synopsis">
17<h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3>
18<pre class="literal-block">
19template&lt;
20      typename Sequence
21    , typename OldType
22    , typename NewType
23    , typename In = <em>unspecified</em>
24    &gt;
25struct <a href="./replace.html" class="identifier">replace</a>
26{
27    typedef <em>unspecified</em> type;
28};
29</pre>
30</div>
31<div class="section" id="replace-description">
32<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
33<p>Returns a copy of the original sequence where every type identical to <tt class="literal"><span class="pre">OldType</span></tt> 
34has been replaced with <tt class="literal"><span class="pre">NewType</span></tt>.</p>
35<p>[<em>Note:</em> This wording applies to a no-inserter version(s) of the algorithm. See the
36<cite>Expression semantics</cite> subsection for a precise specification of the algorithm's
37details in all cases — <em>end note</em>]</p>
38</div>
39<div class="section" id="replace-header">
40<h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
41<pre class="literal-block">
42#include &lt;<a href="../../../../boost/mpl/replace.hpp" class="header">boost/mpl/replace.hpp</a>&gt;
43</pre>
44</div>
45<div class="section" id="replace-model-of">
46<h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
47<p><a class="reference" href="./reversible-algorithm.html">Reversible Algorithm</a></p>
48</div>
49<div class="section" id="replace-parameters">
50<h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3>
51<table border="1" class="table">
52<colgroup>
53<col width="19%" />
54<col width="43%" />
55<col width="38%" />
56</colgroup>
57<thead valign="bottom">
58<tr><th>Parameter</th>
59<th>Requirement</th>
60<th>Description</th>
61</tr>
62</thead>
63<tbody valign="top">
64<tr><td><tt class="literal"><span class="pre">Sequence</span></tt></td>
65<td><a class="reference" href="./forward-sequence.html">Forward Sequence</a></td>
66<td>A original sequence.</td>
67</tr>
68<tr><td><tt class="literal"><span class="pre">OldType</span></tt></td>
69<td>Any type</td>
70<td>A type to be replaced.</td>
71</tr>
72<tr><td><tt class="literal"><span class="pre">NewType</span></tt></td>
73<td>Any type</td>
74<td>A type to replace with.</td>
75</tr>
76<tr><td><tt class="literal"><span class="pre">In</span></tt></td>
77<td><a class="reference" href="./inserter.html">Inserter</a></td>
78<td>An inserter.</td>
79</tr>
80</tbody>
81</table>
82</div>
83<div class="section" id="replace-expression-semantics">
84<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
85<p>The semantics of an expression are defined only
86where they differ from, or are not defined in <a class="reference" href="./reversible-algorithm.html">Reversible Algorithm</a>.</p>
87<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>
88<pre class="literal-block">
89typedef <a href="./replace.html" class="identifier">replace</a>&lt;s,x,y,in&gt;::type r;
90</pre>
91<table class="field-list" frame="void" rules="none">
92<col class="field-name" />
93<col class="field-body" />
94<tbody valign="top">
95<tr class="field"><th class="field-name">Return type:</th><td class="field-body">A type.</td>
96</tr>
97<tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p>
98<pre class="last literal-block">
99typedef <a href="./replace-if.html" class="identifier">replace_if</a>&lt; s,y,is_same&lt;_,x&gt;,in &gt;::type r;
100</pre>
101</td>
102</tr>
103</tbody>
104</table>
105</div>
106<div class="section" id="replace-complexity">
107<h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3>
108<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
109identity / insertions.</p>
110</div>
111<div class="section" id="replace-example">
112<h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
113<pre class="literal-block">
114typedef <a href="./vector.html" class="identifier">vector</a>&lt;int,float,char,float,float,double&gt; types;
115typedef <a href="./vector.html" class="identifier">vector</a>&lt;int,double,char,double,double,double&gt; expected;
116typedef <a href="./replace.html" class="identifier">replace</a>&lt; types,float,double &gt;::type result;
117
118<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>&lt; result,expected > ));
119</pre>
120</div>
121<div class="section" id="replace-see-also">
122<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
123<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>
124<!-- modtime: November 10, 2004 04:33:09 +0000 -->
125<!-- Algorithms/Transformation Algorithms//replace_if |50 -->
126</div>
127</div>
128
129<div class="footer-separator"></div>
130<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>
131</tr></table></body>
132</html>
Note: See TracBrowser for help on using the repository browser.