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>Struct template derivation_value_traits</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="../../intrusive/reference.html#header.boost.intrusive.derivation_value_traits_hpp" title="Header <boost/intrusive/derivation_value_traits.hpp>"> 10<link rel="prev" href="circular_slist_algorithms.html" title="Class template circular_slist_algorithms"> 11<link rel="next" href="hashtable.html" title="Class template hashtable"> 12</head> 13<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 14<table cellpadding="2" width="100%"><tr> 15<td 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src="../../../../doc/src/images/next.png" alt="Next"></a> 25</div> 26<div class="refentry"> 27<a name="boost.intrusive.derivation_value_traits"></a><div class="titlepage"></div> 28<div class="refnamediv"> 29<h2><span class="refentrytitle">Struct template derivation_value_traits</span></h2> 30<p>boost::intrusive::derivation_value_traits</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="../../intrusive/reference.html#header.boost.intrusive.derivation_value_traits_hpp" title="Header <boost/intrusive/derivation_value_traits.hpp>">boost/intrusive/derivation_value_traits.hpp</a>> 34 35</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> NodeTraits<span class="special">,</span> <span class="identifier">link_mode_type</span> LinkMode <span class="special">=</span> <span class="identifier">safe_link</span><span class="special">></span> 36<span class="keyword">struct</span> <a class="link" href="derivation_value_traits.html" title="Struct template derivation_value_traits">derivation_value_traits</a> <span class="special">{</span> 37 <span class="comment">// types</span> 38 <span class="keyword">typedef</span> <span class="identifier">NodeTraits</span> <a name="boost.intrusive.derivation_value_traits.node_traits"></a><span class="identifier">node_traits</span><span class="special">;</span> 39 <span class="keyword">typedef</span> <span class="identifier">T</span> <a name="boost.intrusive.derivation_value_traits.value_type"></a><span class="identifier">value_type</span><span class="special">;</span> 40 <span class="keyword">typedef</span> <span class="identifier">node_traits</span><span class="special">::</span><span class="identifier">node</span> <a name="boost.intrusive.derivation_value_traits.node"></a><span class="identifier">node</span><span class="special">;</span> 41 <span class="keyword">typedef</span> <span class="identifier">node_traits</span><span class="special">::</span><span class="identifier">node_ptr</span> <a name="boost.intrusive.derivation_value_traits.node_ptr"></a><span class="identifier">node_ptr</span><span class="special">;</span> 42 <span class="keyword">typedef</span> <span class="identifier">node_traits</span><span class="special">::</span><span class="identifier">const_node_ptr</span> <a name="boost.intrusive.derivation_value_traits.const_node_ptr"></a><span class="identifier">const_node_ptr</span><span class="special">;</span> 43 <span class="keyword">typedef</span> <a class="link" href="pointer_traits.html" title="Struct template pointer_traits">pointer_traits</a><span class="special"><</span> <span class="identifier">node_ptr</span> <span class="special">></span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">rebind_pointer</span><span class="special"><</span> <span class="identifier">value_type</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> <a name="boost.intrusive.derivation_value_traits.pointer"></a><span class="identifier">pointer</span><span class="special">;</span> 44 <span class="keyword">typedef</span> <a class="link" href="pointer_traits.html" title="Struct template pointer_traits">pointer_traits</a><span class="special"><</span> <span class="identifier">node_ptr</span> <span class="special">></span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">rebind_pointer</span><span class="special"><</span> <span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> <a name="boost.intrusive.derivation_value_traits.const_pointer"></a><span class="identifier">const_pointer</span><span class="special">;</span> 45 <span class="keyword">typedef</span> <a class="link" href="pointer_traits.html" title="Struct template pointer_traits">boost::intrusive::pointer_traits</a><span class="special"><</span> <span class="identifier">pointer</span> <span class="special">></span><span class="special">::</span><span class="identifier">reference</span> <a name="boost.intrusive.derivation_value_traits.reference"></a><span class="identifier">reference</span><span class="special">;</span> 46 <span class="keyword">typedef</span> <a class="link" href="pointer_traits.html" title="Struct template pointer_traits">boost::intrusive::pointer_traits</a><span class="special"><</span> <span class="identifier">const_pointer</span> <span class="special">></span><span class="special">::</span><span class="identifier">reference</span> <a name="boost.intrusive.derivation_value_traits.const_reference"></a><span class="identifier">const_reference</span><span class="special">;</span> 47 48 <span class="comment">// <a class="link" href="derivation_value_traits.html#idm45020922822368-bb">public static functions</a></span> 49 <span class="keyword">static</span> <span class="identifier">node_ptr</span> <a class="link" href="derivation_value_traits.html#idm45020922821808-bb"><span class="identifier">to_node_ptr</span></a><span class="special">(</span><span class="identifier">reference</span><span class="special">)</span><span class="special">;</span> 50 <span class="keyword">static</span> <span class="identifier">const_node_ptr</span> <a class="link" href="derivation_value_traits.html#idm45020922820000-bb"><span class="identifier">to_node_ptr</span></a><span class="special">(</span><span class="identifier">const_reference</span><span class="special">)</span><span class="special">;</span> 51 <span class="keyword">static</span> <span class="identifier">pointer</span> <a class="link" href="derivation_value_traits.html#idm45020922818192-bb"><span class="identifier">to_value_ptr</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">node_ptr</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 52 <span class="keyword">static</span> <span class="identifier">const_pointer</span> <a class="link" href="derivation_value_traits.html#idm45020922816384-bb"><span class="identifier">to_value_ptr</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">const_node_ptr</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 53 54 <span class="comment">// public data members</span> 55 <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">link_mode_type</span> <span class="identifier">link_mode</span><span class="special">;</span> 56<span class="special">}</span><span class="special">;</span></pre></div> 57<div class="refsect1"> 58<a name="id-1.3.20.42.13.3.4"></a><h2>Description</h2> 59<p>This value traits template is used to create value traits from user defined node traits where value_traits::value_type will derive from node_traits::node </p> 60<div class="refsect2"> 61<a name="id-1.3.20.42.13.3.4.3"></a><h3> 62<a name="idm45020922822368-bb"></a><code class="computeroutput">derivation_value_traits</code> public static functions</h3> 63<div class="orderedlist"><ol class="orderedlist" type="1"> 64<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">node_ptr</span> <a name="idm45020922821808-bb"></a><span class="identifier">to_node_ptr</span><span class="special">(</span><span class="identifier">reference</span> value<span class="special">)</span><span class="special">;</span></pre></li> 65<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">const_node_ptr</span> <a name="idm45020922820000-bb"></a><span class="identifier">to_node_ptr</span><span class="special">(</span><span class="identifier">const_reference</span> value<span class="special">)</span><span class="special">;</span></pre></li> 66<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">pointer</span> <a name="idm45020922818192-bb"></a><span class="identifier">to_value_ptr</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">node_ptr</span> <span class="special">&</span> n<span class="special">)</span><span class="special">;</span></pre></li> 67<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">const_pointer</span> <a name="idm45020922816384-bb"></a><span class="identifier">to_value_ptr</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">const_node_ptr</span> <span class="special">&</span> n<span class="special">)</span><span class="special">;</span></pre></li> 68</ol></div> 69</div> 70</div> 71</div> 72<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 73<td align="left"></td> 74<td align="right"><div class="copyright-footer">Copyright © 2005 Olaf Krzikalla<br>Copyright © 2006-2015 Ion Gaztanaga<p> 75 Distributed under the Boost Software License, Version 1.0. (See accompanying 76 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>) 77 </p> 78</div></td> 79</tr></table> 80<hr> 81<div class="spirit-nav"> 82<a accesskey="p" href="circular_slist_algorithms.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../intrusive/reference.html#header.boost.intrusive.derivation_value_traits_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="hashtable.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 83</div> 84</body> 85</html> 86
