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 0.7: http://docutils.sourceforge.net/" /> 7<title>The MPL Reference Manual: remove</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="./replace-if.html" class="navigation-link">Prev</a> <a href="./remove-if.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./replace-if.html" class="navigation-link">Back</a> <a href="./remove-if.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./transformation-algorithms.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </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="./remove.html" class="navigation-link">remove</a></td> 13</tr></table><div class="header-separator"></div> 14<div class="section" id="remove"> 15<h1><a class="toc-backref" href="./transformation-algorithms.html#id1491">remove</a></h1> 16<div class="section" id="id660"> 17<h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3> 18<pre class="literal-block"> 19template< 20 typename Sequence 21 , typename T 22 , typename In = <em>unspecified</em> 23 > 24struct <a href="./remove.html" class="identifier">remove</a> 25{ 26 typedef <em>unspecified</em> type; 27}; 28</pre> 29</div> 30<div class="section" id="id661"> 31<h3><a class="subsection-title" href="#description" name="description">Description</a></h3> 32<p>Returns a new sequence that contains all elements from [<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a><Sequence>::type</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a><Sequence>::type</span></tt>) 33range except those that are identical to <tt class="literal"><span class="pre">T</span></tt>.</p> 34<!-- Returns a copy of the original sequence with all elements identical to ``T`` 35removed. --> 36<p>[<em>Note:</em> This wording applies to a no-inserter version(s) of the algorithm. See the 37<cite>Expression semantics</cite> subsection for a precise specification of the algorithm's 38details in all cases — <em>end note</em>]</p> 39</div> 40<div class="section" id="id662"> 41<h3><a class="subsection-title" href="#header" name="header">Header</a></h3> 42<pre class="literal-block"> 43#include <<a href="../../../../boost/mpl/remove.hpp" class="header">boost/mpl/remove.hpp</a>> 44</pre> 45</div> 46<div class="section" id="id663"> 47<h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3> 48<p><a class="reference internal" href="./reversible-algorithm.html">Reversible Algorithm</a></p> 49</div> 50<div class="section" id="id664"> 51<h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3> 52<table border="1" class="docutils table"> 53<colgroup> 54<col width="19%" /> 55<col width="43%" /> 56<col width="38%" /> 57</colgroup> 58<thead valign="bottom"> 59<tr><th class="head">Parameter</th> 60<th class="head">Requirement</th> 61<th class="head">Description</th> 62</tr> 63</thead> 64<tbody valign="top"> 65<tr><td><tt class="literal"><span class="pre">Sequence</span></tt></td> 66<td><a class="reference internal" href="./forward-sequence.html">Forward Sequence</a></td> 67<td>An original sequence.</td> 68</tr> 69<tr><td><tt class="literal"><span class="pre">T</span></tt></td> 70<td>Any type</td> 71<td>A type to be removed.</td> 72</tr> 73<tr><td><tt class="literal"><span class="pre">In</span></tt></td> 74<td><a class="reference internal" href="./inserter.html">Inserter</a></td> 75<td>An inserter.</td> 76</tr> 77</tbody> 78</table> 79</div> 80<div class="section" id="id665"> 81<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3> 82<p>The semantics of an expression are defined only 83where they differ from, or are not defined in <a class="reference internal" href="./reversible-algorithm.html">Reversible Algorithm</a>.</p> 84<p>For any <a class="reference internal" href="./forward-sequence.html">Forward Sequence</a> <tt class="literal"><span class="pre">s</span></tt>, an <a class="reference internal" href="./inserter.html">Inserter</a> <tt class="literal"><span class="pre">in</span></tt>, and arbitrary type <tt class="literal"><span class="pre">x</span></tt>:</p> 85<pre class="literal-block"> 86typedef <a href="./remove.html" class="identifier">remove</a><s,x,in>::type r; 87</pre> 88<table class="docutils field-list" frame="void" rules="none"> 89<col class="field-name" /> 90<col class="field-body" /> 91<tbody valign="top"> 92<tr class="field"><th class="field-name">Return type:</th><td class="field-body"><p class="first">A type.</p> 93</td> 94</tr> 95<tr class="field"><th class="field-name">Semantics:</th><td class="field-body"><p class="first">Equivalent to</p> 96<pre class="last literal-block"> 97typedef <a href="./remove-if.html" class="identifier">remove_if</a>< s,is_same<_,x>,in >::type r; 98</pre> 99</td> 100</tr> 101</tbody> 102</table> 103</div> 104<div class="section" id="id666"> 105<h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3> 106<p>Linear. Performs exactly <tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a><s>::value</span></tt> comparisons for equality, and at 107most <tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a><s>::value</span></tt> insertions.</p> 108</div> 109<div class="section" id="id667"> 110<h3><a class="subsection-title" href="#example" name="example">Example</a></h3> 111<pre class="literal-block"> 112typedef <a href="./vector.html" class="identifier">vector</a><int,float,char,float,float,double>::type types; 113typedef <a href="./remove.html" class="identifier">remove</a>< types,float >::type result; 114 115<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>< result, <a href="./vector.html" class="identifier">vector</a><int,char,double> > )); 116</pre> 117</div> 118<div class="section" id="id668"> 119<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> 120<p><a class="reference internal" href="./transformation-algorithms.html">Transformation Algorithms</a>, <a class="reference internal" href="./reversible-algorithm.html">Reversible Algorithm</a>, <a class="reference internal" href="./reverse-remove.html">reverse_remove</a>, <a class="reference internal" href="./remove-if.html">remove_if</a>, <a class="reference internal" href="./copy.html">copy</a>, <a class="reference internal" href="./replace.html">replace</a></p> 121<!-- Algorithms/Transformation Algorithms//remove_if |70 --> 122</div> 123</div> 124 125<div class="footer-separator"></div> 126<table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./replace-if.html" class="navigation-link">Prev</a> <a href="./remove-if.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./replace-if.html" class="navigation-link">Back</a> <a href="./remove-if.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./transformation-algorithms.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td> 127<td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div> 128Distributed under the Boost Software License, Version 1.0. (See accompanying 129file LICENSE_1_0.txt or copy at <a class="reference external" href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)</div></td></tr></table></body> 130</html> 131