<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>Class template null_index</title> <link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> <link rel="home" href="../../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> <link rel="up" href="../../interprocess/indexes_reference.html#header.boost.interprocess.indexes.null_index_hpp" title="Header <boost/interprocess/indexes/null_index.hpp>"> <link rel="prev" href="map_index.html" title="Class template map_index"> <link rel="next" href="unordered_map_index.html" title="Class template unordered_map_index"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table cellpadding="2" width="100%"><tr> <td valign="top"><img alt="Boost C++ Libraries" 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name="boost.interprocess.null_index"></a><div class="titlepage"></div> <div class="refnamediv"> <h2><span class="refentrytitle">Class template null_index</span></h2> <p>boost::interprocess::null_index</p> </div> <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> <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>> </span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> MapConfig<span class="special">></span> <span class="keyword">class</span> <a class="link" href="null_index.html" title="Class template null_index">null_index</a> <span class="special">{</span> <span class="keyword">public</span><span class="special">:</span> <span class="comment">// types</span> <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> <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> <span class="comment">// <a class="link" href="null_index.html#boost.interprocess.null_indexconstruct-copy-destruct">construct/copy/destruct</a></span> <a class="link" href="null_index.html#idm45879391653728-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> <span class="comment">// <a class="link" href="null_index.html#idm45879391660112-bb">public member functions</a></span> <span class="identifier">const_iterator</span> <a class="link" href="null_index.html#idm45879391659552-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> <span class="identifier">iterator</span> <a class="link" href="null_index.html#idm45879391658000-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> <span class="identifier">const_iterator</span> <a class="link" href="null_index.html#idm45879391656720-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> <span class="identifier">iterator</span> <a class="link" href="null_index.html#idm45879391655168-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> <span class="special">}</span><span class="special">;</span></pre></div> <div class="refsect1"> <a name="idm45555321080704"></a><h2>Description</h2> <p>Null index type used to save compilation time when named indexes are not needed. </p> <div class="refsect2"> <a name="idm45555321079936"></a><h3> <a name="boost.interprocess.null_indexconstruct-copy-destruct"></a><code class="computeroutput">null_index</code> public construct/copy/destruct</h3> <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"> <pre class="literallayout"><a name="idm45879391653728-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> </div> <div class="refsect2"> <a name="idm45555321072560"></a><h3> <a name="idm45879391660112-bb"></a><code class="computeroutput">null_index</code> public member functions</h3> <div class="orderedlist"><ol class="orderedlist" type="1"> <li class="listitem"> <pre class="literallayout"><span class="identifier">const_iterator</span> <a name="idm45879391659552-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> <p>begin() is equal to end() </p> </li> <li class="listitem"> <pre class="literallayout"><span class="identifier">iterator</span> <a name="idm45879391658000-bb"></a><span class="identifier">begin</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> <p>begin() is equal to end() </p> </li> <li class="listitem"> <pre class="literallayout"><span class="identifier">const_iterator</span> <a name="idm45879391656720-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> <p>begin() is equal to end() </p> </li> <li class="listitem"> <pre class="literallayout"><span class="identifier">iterator</span> <a name="idm45879391655168-bb"></a><span class="identifier">end</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> <p>begin() is equal to end() </p> </li> </ol></div> </div> </div> </div> <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> <td align="left"></td> <td align="right"><div class="copyright-footer">Copyright © 2005-2015 Ion Gaztanaga<p> Distributed under the Boost Software License, Version 1.0. (See accompanying 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>) </p> </div></td> </tr></table> <hr> <div class="spirit-nav"> <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> </div> </body> </html>