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26 <div class="refentry">
27 <a name="boost.intrusive.member_value_traits"></a><div class="titlepage"></div>
28 <div class="refnamediv">
29 <h2><span class="refentrytitle">Struct template member_value_traits</span></h2>
30 <p>boost::intrusive::member_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: &lt;<a class="link" href="../../intrusive/reference.html#header.boost.intrusive.member_value_traits_hpp" title="Header &lt;boost/intrusive/member_value_traits.hpp&gt;">boost/intrusive/member_value_traits.hpp</a>&gt;
34
35 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> NodeTraits<span class="special">,</span> 
36          <span class="keyword">typename</span> <span class="identifier">NodeTraits</span><span class="special">::</span><span class="identifier">node</span> <span class="identifier">T</span><span class="special">::</span><span class="special">*</span> PtrToMember<span class="special">,</span> 
37          <span class="identifier">link_mode_type</span> LinkMode <span class="special">=</span> <span class="identifier">safe_link</span><span class="special">&gt;</span> 
38 <span class="keyword">struct</span> <a class="link" href="member_value_traits.html" title="Struct template member_value_traits">member_value_traits</a> <span class="special">{</span>
39   <span class="comment">// types</span>
40   <span class="keyword">typedef</span> <span class="identifier">NodeTraits</span>                                                           <a name="boost.intrusive.member_value_traits.node_traits"></a><span class="identifier">node_traits</span><span class="special">;</span>    
41   <span class="keyword">typedef</span> <span class="identifier">T</span>                                                                    <a name="boost.intrusive.member_value_traits.value_type"></a><span class="identifier">value_type</span><span class="special">;</span>     
42   <span class="keyword">typedef</span> <span class="identifier">node_traits</span><span class="special">::</span><span class="identifier">node</span>                                                    <a name="boost.intrusive.member_value_traits.node"></a><span class="identifier">node</span><span class="special">;</span>           
43   <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.member_value_traits.node_ptr"></a><span class="identifier">node_ptr</span><span class="special">;</span>       
44   <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.member_value_traits.const_node_ptr"></a><span class="identifier">const_node_ptr</span><span class="special">;</span> 
45   <span class="keyword">typedef</span> <a class="link" href="pointer_traits.html" title="Struct template pointer_traits">pointer_traits</a><span class="special">&lt;</span> <span class="identifier">node_ptr</span> <span class="special">&gt;</span>                                           <a name="boost.intrusive.member_value_traits.node_ptr_traits"></a><span class="identifier">node_ptr_traits</span><span class="special">;</span>
46   <span class="keyword">typedef</span> <a class="link" href="pointer_traits.html" title="Struct template pointer_traits">pointer_traits</a><span class="special">&lt;</span> <span class="identifier">node_ptr</span> <span class="special">&gt;</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">rebind_pointer</span><span class="special">&lt;</span> <span class="identifier">T</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">type</span>       <a name="boost.intrusive.member_value_traits.pointer"></a><span class="identifier">pointer</span><span class="special">;</span>        
47   <span class="keyword">typedef</span> <a class="link" href="pointer_traits.html" title="Struct template pointer_traits">pointer_traits</a><span class="special">&lt;</span> <span class="identifier">node_ptr</span> <span class="special">&gt;</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">rebind_pointer</span><span class="special">&lt;</span> <span class="keyword">const</span> <span class="identifier">T</span> <span class="special">&gt;</span><span class="special">::</span><span class="identifier">type</span> <a name="boost.intrusive.member_value_traits.const_pointer"></a><span class="identifier">const_pointer</span><span class="special">;</span>  
48   <span class="keyword">typedef</span> <span class="identifier">value_type</span> <span class="special">&amp;</span>                                                         <a name="boost.intrusive.member_value_traits.reference"></a><span class="identifier">reference</span><span class="special">;</span>      
49   <span class="keyword">typedef</span> <span class="keyword">const</span> <span class="identifier">value_type</span> <span class="special">&amp;</span>                                                   <a name="boost.intrusive.member_value_traits.const_reference"></a><span class="identifier">const_reference</span><span class="special">;</span>
50
51   <span class="comment">// <a class="link" href="member_value_traits.html#idp79190704-bb">public static functions</a></span>
52   <span class="keyword">static</span> <span class="identifier">node_ptr</span> <a class="link" href="member_value_traits.html#idp79191264-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>
53   <span class="keyword">static</span> <span class="identifier">const_node_ptr</span> <a class="link" href="member_value_traits.html#idp79193072-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>
54   <span class="keyword">static</span> <span class="identifier">pointer</span> <a class="link" href="member_value_traits.html#idp79194880-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">&amp;</span><span class="special">)</span><span class="special">;</span>
55   <span class="keyword">static</span> <span class="identifier">const_pointer</span> <a class="link" href="member_value_traits.html#idp79196688-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">&amp;</span><span class="special">)</span><span class="special">;</span>
56
57   <span class="comment">// public data members</span>
58   <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>
59 <span class="special">}</span><span class="special">;</span></pre></div>
60 <div class="refsect1">
61 <a name="idp325547280"></a><h2>Description</h2>
62 <p>This value traits template is used to create value traits from user defined node traits where value_traits::value_type will store a node_traits::node </p>
63 <div class="refsect2">
64 <a name="idp325548112"></a><h3>
65 <a name="idp79190704-bb"></a><code class="computeroutput">member_value_traits</code> public static functions</h3>
66 <div class="orderedlist"><ol class="orderedlist" type="1">
67 <li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">node_ptr</span> <a name="idp79191264-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>
68 <li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">const_node_ptr</span> <a name="idp79193072-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>
69 <li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">pointer</span> <a name="idp79194880-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">&amp;</span> n<span class="special">)</span><span class="special">;</span></pre></li>
70 <li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">const_pointer</span> <a name="idp79196688-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">&amp;</span> n<span class="special">)</span><span class="special">;</span></pre></li>
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