1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5<title>Class template null_index</title> 6<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> 7<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 8<link rel="home" href="../../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> 9<link rel="up" href="../../interprocess/indexes_reference.html#header.boost.interprocess.indexes.null_index_hpp" title="Header <boost/interprocess/indexes/null_index.hpp>"> 10<link rel="prev" href="map_index.html" title="Class template map_index"> 11<link rel="next" href="unordered_map_index.html" title="Class template unordered_map_index"> 12</head> 13<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 14<table cellpadding="2" width="100%"><tr> 15<td valign="top"><img 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alt="Next"></a> 25</div> 26<div class="refentry"> 27<a name="boost.interprocess.null_index"></a><div class="titlepage"></div> 28<div class="refnamediv"> 29<h2><span class="refentrytitle">Class template null_index</span></h2> 30<p>boost::interprocess::null_index</p> 31</div> 32<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 33<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../interprocess/indexes_reference.html#header.boost.interprocess.indexes.null_index_hpp" title="Header <boost/interprocess/indexes/null_index.hpp>">boost/interprocess/indexes/null_index.hpp</a>> 34 35</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> MapConfig<span class="special">></span> 36<span class="keyword">class</span> <a class="link" href="null_index.html" title="Class template null_index">null_index</a> <span class="special">{</span> 37<span class="keyword">public</span><span class="special">:</span> 38 <span class="comment">// types</span> 39 <span class="keyword">typedef</span> <span class="keyword">int</span> <span class="special">*</span> <a name="boost.interprocess.null_index.iterator"></a><span class="identifier">iterator</span><span class="special">;</span> 40 <span class="keyword">typedef</span> <span class="keyword">const</span> <span class="keyword">int</span> <span class="special">*</span> <a name="boost.interprocess.null_index.const_iterator"></a><span class="identifier">const_iterator</span><span class="special">;</span> 41 42 <span class="comment">// <a class="link" href="null_index.html#boost.interprocess.null_indexconstruct-copy-destruct">construct/copy/destruct</a></span> 43 <a class="link" href="null_index.html#idm45304011943312-bb"><span class="identifier">null_index</span></a><span class="special">(</span><a class="link" href="segment_manager_base.html" title="Class template segment_manager_base">segment_manager_base</a> <span class="special">*</span><span class="special">)</span><span class="special">;</span> 44 45 <span class="comment">// <a class="link" href="null_index.html#idm45304011949696-bb">public member functions</a></span> 46 <span class="identifier">const_iterator</span> <a class="link" href="null_index.html#idm45304011949136-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 47 <span class="identifier">iterator</span> <a class="link" href="null_index.html#idm45304011947584-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 48 <span class="identifier">const_iterator</span> <a class="link" href="null_index.html#idm45304011946304-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 49 <span class="identifier">iterator</span> <a class="link" href="null_index.html#idm45304011944752-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 50<span class="special">}</span><span class="special">;</span></pre></div> 51<div class="refsect1"> 52<a name="id-1.3.19.17.3.31.4.4"></a><h2>Description</h2> 53<p>Null index type used to save compilation time when named indexes are not needed. </p> 54<div class="refsect2"> 55<a name="id-1.3.19.17.3.31.4.4.3"></a><h3> 56<a name="boost.interprocess.null_indexconstruct-copy-destruct"></a><code class="computeroutput">null_index</code> 57 public 58 construct/copy/destruct</h3> 59<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"> 60<pre class="literallayout"><a name="idm45304011943312-bb"></a><span class="identifier">null_index</span><span class="special">(</span><a class="link" href="segment_manager_base.html" title="Class template segment_manager_base">segment_manager_base</a> <span class="special">*</span><span class="special">)</span><span class="special">;</span></pre>Empty constructor. </li></ol></div> 61</div> 62<div class="refsect2"> 63<a name="id-1.3.19.17.3.31.4.4.4"></a><h3> 64<a name="idm45304011949696-bb"></a><code class="computeroutput">null_index</code> public member functions</h3> 65<div class="orderedlist"><ol class="orderedlist" type="1"> 66<li class="listitem"> 67<pre class="literallayout"><span class="identifier">const_iterator</span> <a name="idm45304011949136-bb"></a><span class="identifier">begin</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre> 68<p>begin() is equal to end() </p> 69</li> 70<li class="listitem"> 71<pre class="literallayout"><span class="identifier">iterator</span> <a name="idm45304011947584-bb"></a><span class="identifier">begin</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> 72<p>begin() is equal to end() </p> 73</li> 74<li class="listitem"> 75<pre class="literallayout"><span class="identifier">const_iterator</span> <a name="idm45304011946304-bb"></a><span class="identifier">end</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre> 76<p>begin() is equal to end() </p> 77</li> 78<li class="listitem"> 79<pre class="literallayout"><span class="identifier">iterator</span> <a name="idm45304011944752-bb"></a><span class="identifier">end</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> 80<p>begin() is equal to end() </p> 81</li> 82</ol></div> 83</div> 84</div> 85</div> 86<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 87<td align="left"></td> 88<td align="right"><div class="copyright-footer">Copyright © 2005-2015 Ion Gaztanaga<p> 89 Distributed under the Boost Software License, Version 1.0. (See accompanying 90 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>) 91 </p> 92</div></td> 93</tr></table> 94<hr> 95<div class="spirit-nav"> 96<a accesskey="p" href="map_index.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../interprocess/indexes_reference.html#header.boost.interprocess.indexes.null_index_hpp"><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="unordered_map_index.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 97</div> 98</body> 99</html> 100
