<!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>Function template hash_value</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="../../boost_typeindex_header_reference.html#header.boost.type_index.type_index_facade_hpp" title="Header <boost/type_index/type_index_facade.hpp>"> <link rel="prev" href="type_index_facade.html" title="Class template type_index_facade"> <link rel="next" href="../../boost_typeindex/making_a_custom_type_index.html" title="Making a custom type_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" width="277" height="86" src="../../../../boost.png"></td> <td align="center"><a href="../../../../index.html">Home</a></td> <td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td> <td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> <td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> <td align="center"><a href="../../../../more/index.htm">More</a></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="type_index_facade.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_typeindex_header_reference.html#header.boost.type_index.type_index_facade_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="../../boost_typeindex/making_a_custom_type_index.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> </div> <div class="refentry"> <a name="boost.typeindex.hash_val_idm45506981463280"></a><div class="titlepage"></div> <div class="refnamediv"> <h2><span class="refentrytitle">Function template hash_value</span></h2> <p>boost::typeindex::hash_value</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="../../boost_typeindex_header_reference.html#header.boost.type_index.type_index_facade_hpp" title="Header <boost/type_index/type_index_facade.hpp>">boost/type_index/type_index_facade.hpp</a>> </span> <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Derived<span class="special">,</span> <span class="keyword">typename</span> TypeInfo<span class="special">></span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">hash_value</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="type_index_facade.html" title="Class template type_index_facade">type_index_facade</a><span class="special"><</span> <span class="identifier">Derived</span><span class="special">,</span> <span class="identifier">TypeInfo</span> <span class="special">></span> <span class="special">&</span> lhs<span class="special">)</span><span class="special">;</span></pre></div> <div class="refsect1"> <a name="idm45555073357120"></a><h2>Description</h2> <p>This free function is used by Boost's unordered containers. </p> <div class="note"><table border="0" summary="Note"> <tr> <td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../doc/src/images/note.png"></td> <th align="left">Note</th> </tr> <tr><td align="left" valign="top"><p><boost/functional/hash.hpp> has to be included if this function is used. </p></td></tr> </table></div> <p> </p> </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 © 2012-2014 Antony Polukhin<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="type_index_facade.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_typeindex_header_reference.html#header.boost.type_index.type_index_facade_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="../../boost_typeindex/making_a_custom_type_index.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>