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: inserter (class)</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="./front-inserter.html" class="navigation-link">Prev</a> <a href="./iteration-algorithms.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./front-inserter.html" class="navigation-link">Back</a> Along</span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./inserters.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="./inserters.html" class="navigation-link">Inserters</a> / <a href="./inserter-class.html" class="navigation-link">inserter (class)</a></td> 13</tr></table><div class="header-separator"></div> 14<div class="section" id="inserter-class"> 15<span id="id483"></span><h1><a class="toc-backref" href="./inserters.html#id1467">inserter (class)</a></h1> 16<div class="section" id="id484"> 17<h3><a class="subsection-title" href="#synopsis" name="synopsis">Synopsis</a></h3> 18<pre class="literal-block"> 19template< 20 typename State 21 , typename Operation 22 > 23struct <a href="./inserter-class.html" class="identifier">inserter</a> 24{ 25 typedef State state; 26 typedef Operation operation; 27}; 28</pre> 29</div> 30<div class="section" id="id485"> 31<h3><a class="subsection-title" href="#description" name="description">Description</a></h3> 32<p>A general-purpose model of the <a class="reference internal" href="./inserter.html">Inserter</a> concept.</p> 33</div> 34<div class="section" id="id486"> 35<h3><a class="subsection-title" href="#header" name="header">Header</a></h3> 36<pre class="literal-block"> 37#include <<a href="../../../../boost/mpl/inserter.hpp" class="header">boost/mpl/inserter.hpp</a>> 38</pre> 39</div> 40<div class="section" id="id487"> 41<h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3> 42<p><a class="reference internal" href="./inserter.html">Inserter</a></p> 43</div> 44<div class="section" id="id488"> 45<h3><a class="subsection-title" href="#parameters" name="parameters">Parameters</a></h3> 46<table border="1" class="docutils table"> 47<colgroup> 48<col width="19%" /> 49<col width="38%" /> 50<col width="43%" /> 51</colgroup> 52<thead valign="bottom"> 53<tr><th class="head">Parameter</th> 54<th class="head">Requirement</th> 55<th class="head">Description</th> 56</tr> 57</thead> 58<tbody valign="top"> 59<tr><td><tt class="literal"><span class="pre">State</span></tt></td> 60<td>Any type</td> 61<td>A initial state.</td> 62</tr> 63<tr><td><tt class="literal"><span class="pre">Operation</span></tt></td> 64<td>Binary <a class="reference internal" href="./lambda-expression.html">Lambda Expression</a></td> 65<td>An output operation.</td> 66</tr> 67</tbody> 68</table> 69</div> 70<div class="section" id="id489"> 71<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3> 72<p>The semantics of an expression are defined only 73where they differ from, or are not defined in <a class="reference internal" href="./inserter.html">Inserter</a>.</p> 74<p>For any binary <a class="reference internal" href="./lambda-expression.html">Lambda Expression</a> <tt class="literal"><span class="pre">op</span></tt> and arbitrary type <tt class="literal"><span class="pre">state</span></tt>:</p> 75<table border="1" class="docutils table"> 76<colgroup> 77<col width="39%" /> 78<col width="61%" /> 79</colgroup> 80<thead valign="bottom"> 81<tr><th class="head">Expression</th> 82<th class="head">Semantics</th> 83</tr> 84</thead> 85<tbody valign="top"> 86<tr><td><tt class="literal"><span class="pre"><a href="./inserter-class.html" class="identifier">inserter</a><op,state></span></tt></td> 87<td>An <a class="reference internal" href="./inserter.html">Inserter</a>.</td> 88</tr> 89</tbody> 90</table> 91</div> 92<div class="section" id="id490"> 93<h3><a class="subsection-title" href="#complexity" name="complexity">Complexity</a></h3> 94<p>Amortized constant time.</p> 95</div> 96<div class="section" id="id491"> 97<h3><a class="subsection-title" href="#example" name="example">Example</a></h3> 98<pre class="literal-block"> 99template< typename N > struct is_odd : <a href="./bool.html" class="identifier">bool_</a>< ( N::value % 2 ) > {}; 100 101typedef <a href="./copy.html" class="identifier">copy</a>< 102 <a href="./range-c.html" class="identifier">range_c</a><int,0,10> 103 , <a href="./inserter-class.html" class="identifier">inserter</a>< // a filtering '<a href="./push-back.html" class="identifier">push_back</a>' <a href="./inserter-class.html" class="identifier">inserter</a> 104 <a href="./vector.html" class="identifier">vector</a><> 105 , <a href="./if.html" class="identifier">if_</a>< is_odd<<a href="./placeholders.html" class="identifier">_2</a>>, <a href="./push-back.html" class="identifier">push_back</a><<a href="./placeholders.html" class="identifier">_1</a>,<a href="./placeholders.html" class="identifier">_2</a>>, <a href="./placeholders.html" class="identifier">_1</a> > 106 > 107 >::type odds; 108 109<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( <a href="./equal.html" class="identifier">equal</a>< odds, <a href="./vector-c.html" class="identifier">vector_c</a><int,1,3,5,7,9>, <a href="./equal-to.html" class="identifier">equal_to</a><_,_> > )); 110</pre> 111</div> 112<div class="section" id="id492"> 113<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3> 114<p><a class="reference internal" href="./algorithms.html">Algorithms</a>, <a class="reference internal" href="./inserter.html">Inserter</a>, <a class="reference internal" href="./reversible-algorithm.html">Reversible Algorithm</a>, <a class="reference internal" href="./front-inserter.html">front_inserter</a>, <a class="reference internal" href="./back-inserter.html">back_inserter</a></p> 115</div> 116</div> 117 118<div class="footer-separator"></div> 119<table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./front-inserter.html" class="navigation-link">Prev</a> <a href="./iteration-algorithms.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./front-inserter.html" class="navigation-link">Back</a> Along</span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./inserters.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> 120<td><div class="copyright-footer"><div class="copyright">Copyright © 2001-2009 Aleksey Gurtovoy and David Abrahams</div> 121Distributed under the Boost Software License, Version 1.0. (See accompanying 122file 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> 123</html> 124