doc/html/boost/container/node_allocator.html

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  26 <div class="refentry">
  27 <a name="boost.container.node_allocator"></a><div class="titlepage"></div>
  28 <div class="refnamediv">
  29 <h2><span class="refentrytitle">Class template node_allocator</span></h2>
  30 <p>boost::container::node_allocator</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="../../boost_container_header_reference.html#header.boost.container.node_allocator_hpp" title="Header &lt;boost/container/node_allocator.hpp&gt;">boost/container/node_allocator.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="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> NodesPerBlock <span class="special">=</span> <span class="identifier">NodeAlloc_nodes_per_block</span><span class="special">&gt;</span>
  36 <span class="keyword">class</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</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="identifier">T</span>              <a name="boost.container.node_allocator.value_type"></a><span class="identifier">value_type</span><span class="special">;</span>
  40   <span class="keyword">typedef</span> <span class="identifier">T</span> <span class="special">*</span>            <a name="boost.container.node_allocator.pointer"></a><span class="identifier">pointer</span><span class="special">;</span>
  41   <span class="keyword">typedef</span> <span class="keyword">const</span> <span class="identifier">T</span> <span class="special">*</span>      <a name="boost.container.node_allocator.const_pointer"></a><span class="identifier">const_pointer</span><span class="special">;</span>
  42   <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span>    <a name="boost.container.node_allocator.reference"></a><span class="identifier">reference</span><span class="special">;</span>
  43   <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span>    <a name="boost.container.node_allocator.const_reference"></a><span class="identifier">const_reference</span><span class="special">;</span>
  44   <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span>    <a name="boost.container.node_allocator.size_type"></a><span class="identifier">size_type</span><span class="special">;</span>
  45   <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> <a name="boost.container.node_allocator.difference_type"></a><span class="identifier">difference_type</span><span class="special">;</span>
  46   <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span>    <a name="boost.container.node_allocator.version"></a><span class="identifier">version</span><span class="special">;</span>
  47
  48   <span class="comment">// member classes/structs/unions</span>
  49   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T2<span class="special">&gt;</span>
  50   <span class="keyword">struct</span> <a class="link" href="node_allocator/rebind.html" title="Struct template rebind">rebind</a> <span class="special">{</span>
  51     <span class="comment">// types</span>
  52     <span class="keyword">typedef</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a><span class="special">&lt;</span> <span class="identifier">T2</span><span class="special">,</span> <span class="identifier">NodesPerBlock</span> <span class="special">&gt;</span> <a class="link" href="node_allocator/rebind.html#boost.container.node_allocator.rebind.other"><span class="identifier">other</span></a><span class="special">;</span>
  53   <span class="special">}</span><span class="special">;</span>
  54
  55   <span class="comment">// <a class="link" href="node_allocator.html#boost.container.node_allocatorconstruct-copy-destruct">construct/copy/destruct</a></span>
  56   <a class="link" href="node_allocator.html#idp50562832-bb"><span class="identifier">node_allocator</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  57   <a class="link" href="node_allocator.html#idp50563680-bb"><span class="identifier">node_allocator</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  58   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T2<span class="special">&gt;</span>
  59     <a class="link" href="node_allocator.html#idp50566416-bb"><span class="identifier">node_allocator</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a><span class="special">&lt;</span> <span class="identifier">T2</span><span class="special">,</span> <span class="identifier">NodesPerBlock</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  60   <a class="link" href="node_allocator.html#idp50570000-bb"><span class="special">~</span><span class="identifier">node_allocator</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  61
  62   <span class="comment">// <a class="link" href="node_allocator.html#idp50531664-bb">public member functions</a></span>
  63   <span class="identifier">size_type</span> <a class="link" href="node_allocator.html#idp50532224-bb"><span class="identifier">max_size</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  64   <span class="identifier">pointer</span> <a class="link" href="node_allocator.html#idp50533808-bb"><span class="identifier">allocate</span></a><span class="special">(</span><span class="identifier">size_type</span><span class="special">,</span> <span class="keyword">const</span> <span class="keyword">void</span> <span class="special">*</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span>
  65   <span class="keyword">void</span> <a class="link" href="node_allocator.html#idp50536816-bb"><span class="identifier">deallocate</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">pointer</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">size_type</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  66   <span class="identifier">pointer</span> <a class="link" href="node_allocator.html#idp50539760-bb"><span class="identifier">allocation_command</span></a><span class="special">(</span><span class="identifier">allocation_type</span><span class="special">,</span> <span class="identifier">size_type</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="special">&amp;</span><span class="special">,</span>
  67                              <span class="identifier">pointer</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  68   <span class="identifier">size_type</span> <a class="link" href="node_allocator.html#idp50543376-bb"><span class="identifier">size</span></a><span class="special">(</span><span class="identifier">pointer</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
  69   <span class="identifier">pointer</span> <a class="link" href="node_allocator.html#idp50545680-bb"><span class="identifier">allocate_one</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  70   <span class="keyword">void</span> <a class="link" href="node_allocator.html#idp50547088-bb"><span class="identifier">allocate_individual</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">,</span> <span class="identifier">multiallocation_chain</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  71   <span class="keyword">void</span> <a class="link" href="node_allocator.html#idp50549808-bb"><span class="identifier">deallocate_one</span></a><span class="special">(</span><span class="identifier">pointer</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  72   <span class="keyword">void</span> <a class="link" href="node_allocator.html#idp50552208-bb"><span class="identifier">deallocate_individual</span></a><span class="special">(</span><span class="identifier">multiallocation_chain</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  73   <span class="keyword">void</span> <a class="link" href="node_allocator.html#idp50554016-bb"><span class="identifier">allocate_many</span></a><span class="special">(</span><span class="identifier">size_type</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">,</span> <span class="identifier">multiallocation_chain</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  74   <span class="keyword">void</span> <a class="link" href="node_allocator.html#idp50557424-bb"><span class="identifier">allocate_many</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">size_type</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">size_type</span><span class="special">,</span> <span class="identifier">multiallocation_chain</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  75   <span class="keyword">void</span> <a class="link" href="node_allocator.html#idp50560864-bb"><span class="identifier">deallocate_many</span></a><span class="special">(</span><span class="identifier">multiallocation_chain</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  76
  77   <span class="comment">// <a class="link" href="node_allocator.html#idp50570576-bb">public static functions</a></span>
  78   <span class="keyword">static</span> <span class="keyword">void</span> <a class="link" href="node_allocator.html#idp50571136-bb"><span class="identifier">deallocate_free_blocks</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  79
  80   <span class="comment">// <a class="link" href="node_allocator.html#idp50573008-bb">friend functions</a></span>
  81   <span class="keyword">friend</span> <span class="keyword">void</span> <a class="link" href="node_allocator.html#idp50573568-bb"><span class="identifier">swap</span></a><span class="special">(</span><span class="identifier">self_t</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">self_t</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  82   <span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="node_allocator.html#idp50576576-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  83   <span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="node_allocator.html#idp50580480-bb"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
  84
  85   <span class="comment">// <a class="link" href="node_allocator.html#idp50584544-bb">private member functions</a></span>
  86   <span class="identifier">pointer</span> <a class="link" href="node_allocator.html#idp50585120-bb"><span class="identifier">priv_allocation_command</span></a><span class="special">(</span><span class="identifier">allocation_type</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span><span class="special">,</span> <span class="identifier">size_type</span> <span class="special">&amp;</span><span class="special">,</span>
  87                                   <span class="identifier">pointer</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  88 <span class="special">}</span><span class="special">;</span></pre></div>
  89 <div class="refsect1">
  90 <a name="idp191140080"></a><h2>Description</h2>
  91 <p>An STL node allocator that uses a modified DlMalloc as memory source.</p>
  92 <p>This node allocator shares a segregated storage between all instances of <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a> with equal sizeof(T).</p>
  93 <p>NodesPerBlock is the number of nodes allocated at once when the allocator runs out of nodes </p>
  94 <div class="refsect2">
  95 <a name="idp191142464"></a><h3>
  96 <a name="boost.container.node_allocatorconstruct-copy-destruct"></a><code class="computeroutput">node_allocator</code>
  97         public
  98        construct/copy/destruct</h3>
  99 <div class="orderedlist"><ol class="orderedlist" type="1">
 100 <li class="listitem">
 101 <pre class="literallayout"><a name="idp50562832-bb"></a><span class="identifier">node_allocator</span><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>Default constructor. </li>
 102 <li class="listitem">
 103 <pre class="literallayout"><a name="idp50563680-bb"></a><span class="identifier">node_allocator</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>Copy constructor from other <code class="computeroutput"><a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a></code>. </li>
 104 <li class="listitem">
 105 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T2<span class="special">&gt;</span>
 106   <a name="idp50566416-bb"></a><span class="identifier">node_allocator</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a><span class="special">&lt;</span> <span class="identifier">T2</span><span class="special">,</span> <span class="identifier">NodesPerBlock</span> <span class="special">&gt;</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>Copy constructor from related <code class="computeroutput"><a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a></code>. </li>
 107 <li class="listitem">
 108 <pre class="literallayout"><a name="idp50570000-bb"></a><span class="special">~</span><span class="identifier">node_allocator</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>Destructor. </li>
 109 </ol></div>
 110 </div>
 111 <div class="refsect2">
 112 <a name="idp191174800"></a><h3>
 113 <a name="idp50531664-bb"></a><code class="computeroutput">node_allocator</code> public member functions</h3>
 114 <div class="orderedlist"><ol class="orderedlist" type="1">
 115 <li class="listitem">
 116 <pre class="literallayout"><span class="identifier">size_type</span> <a name="idp50532224-bb"></a><span class="identifier">max_size</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
 117 <p>Returns the number of elements that could be allocated. Never throws </p>
 118 </li>
 119 <li class="listitem">
 120 <pre class="literallayout"><span class="identifier">pointer</span> <a name="idp50533808-bb"></a><span class="identifier">allocate</span><span class="special">(</span><span class="identifier">size_type</span> count<span class="special">,</span> <span class="keyword">const</span> <span class="keyword">void</span> <span class="special">*</span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span></pre>
 121 <p>Allocate memory for an array of count elements. Throws std::bad_alloc if there is no enough memory </p>
 122 </li>
 123 <li class="listitem">
 124 <pre class="literallayout"><span class="keyword">void</span> <a name="idp50536816-bb"></a><span class="identifier">deallocate</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">pointer</span> <span class="special">&amp;</span> ptr<span class="special">,</span> <span class="identifier">size_type</span> count<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 125 <p>Deallocate allocated memory. Never throws </p>
 126 </li>
 127 <li class="listitem"><pre class="literallayout"><span class="identifier">pointer</span> <a name="idp50539760-bb"></a><span class="identifier">allocation_command</span><span class="special">(</span><span class="identifier">allocation_type</span> command<span class="special">,</span> <span class="identifier">size_type</span> limit_size<span class="special">,</span>
 128                            <span class="identifier">size_type</span> <span class="special">&amp;</span> prefer_in_recvd_out_size<span class="special">,</span>
 129                            <span class="identifier">pointer</span> <span class="special">&amp;</span> reuse<span class="special">)</span><span class="special">;</span></pre></li>
 130 <li class="listitem">
 131 <pre class="literallayout"><span class="identifier">size_type</span> <a name="idp50543376-bb"></a><span class="identifier">size</span><span class="special">(</span><span class="identifier">pointer</span> p<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 132 <p>Returns maximum the number of objects the previously allocated memory pointed by p can hold. </p>
 133 </li>
 134 <li class="listitem">
 135 <pre class="literallayout"><span class="identifier">pointer</span> <a name="idp50545680-bb"></a><span class="identifier">allocate_one</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
 136 <p>Allocates just one object. Memory allocated with this function must be deallocated only with deallocate_one(). Throws bad_alloc if there is no enough memory </p>
 137 </li>
 138 <li class="listitem">
 139 <pre class="literallayout"><span class="keyword">void</span> <a name="idp50547088-bb"></a><span class="identifier">allocate_individual</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> num_elements<span class="special">,</span>
 140                          <span class="identifier">multiallocation_chain</span> <span class="special">&amp;</span> chain<span class="special">)</span><span class="special">;</span></pre>
 141 <p>Allocates many elements of size == 1. Elements must be individually deallocated with deallocate_one() </p>
 142 </li>
 143 <li class="listitem">
 144 <pre class="literallayout"><span class="keyword">void</span> <a name="idp50549808-bb"></a><span class="identifier">deallocate_one</span><span class="special">(</span><span class="identifier">pointer</span> p<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 145 <p>Deallocates memory previously allocated with allocate_one(). You should never use deallocate_one to deallocate memory allocated with other functions different from allocate_one(). Never throws </p>
 146 </li>
 147 <li class="listitem"><pre class="literallayout"><span class="keyword">void</span> <a name="idp50552208-bb"></a><span class="identifier">deallocate_individual</span><span class="special">(</span><span class="identifier">multiallocation_chain</span> <span class="special">&amp;</span> chain<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 148 <li class="listitem">
 149 <pre class="literallayout"><span class="keyword">void</span> <a name="idp50554016-bb"></a><span class="identifier">allocate_many</span><span class="special">(</span><span class="identifier">size_type</span> elem_size<span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> n_elements<span class="special">,</span>
 150                    <span class="identifier">multiallocation_chain</span> <span class="special">&amp;</span> chain<span class="special">)</span><span class="special">;</span></pre>
 151 <p>Allocates many elements of size elem_size. Elements must be individually deallocated with deallocate() </p>
 152 </li>
 153 <li class="listitem">
 154 <pre class="literallayout"><span class="keyword">void</span> <a name="idp50557424-bb"></a><span class="identifier">allocate_many</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">size_type</span> <span class="special">*</span> elem_sizes<span class="special">,</span> <span class="identifier">size_type</span> n_elements<span class="special">,</span>
 155                    <span class="identifier">multiallocation_chain</span> <span class="special">&amp;</span> chain<span class="special">)</span><span class="special">;</span></pre>
 156 <p>Allocates n_elements elements, each one of size elem_sizes[i] Elements must be individually deallocated with deallocate() </p>
 157 </li>
 158 <li class="listitem"><pre class="literallayout"><span class="keyword">void</span> <a name="idp50560864-bb"></a><span class="identifier">deallocate_many</span><span class="special">(</span><span class="identifier">multiallocation_chain</span> <span class="special">&amp;</span> chain<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li>
 159 </ol></div>
 160 </div>
 161 <div class="refsect2">
 162 <a name="idp191270112"></a><h3>
 163 <a name="idp50570576-bb"></a><code class="computeroutput">node_allocator</code> public static functions</h3>
 164 <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
 165 <pre class="literallayout"><span class="keyword">static</span> <span class="keyword">void</span> <a name="idp50571136-bb"></a><span class="identifier">deallocate_free_blocks</span><span class="special">(</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>Deallocates all free blocks of the pool. </li></ol></div>
 166 </div>
 167 <div class="refsect2">
 168 <a name="idp191278224"></a><h3>
 169 <a name="idp50573008-bb"></a><code class="computeroutput">node_allocator</code> friend functions</h3>
 170 <div class="orderedlist"><ol class="orderedlist" type="1">
 171 <li class="listitem">
 172 <pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">void</span> <a name="idp50573568-bb"></a><span class="identifier">swap</span><span class="special">(</span><span class="identifier">self_t</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">self_t</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 173 <p>Swaps allocators. Does not throw. If each allocator is placed in a different memory segment, the result is undefined. </p>
 174 </li>
 175 <li class="listitem">
 176 <pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="idp50576576-bb"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 177 <p>An allocator always compares to true, as memory allocated with one instance can be deallocated by another instance </p>
 178 </li>
 179 <li class="listitem">
 180 <pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="idp50580480-bb"></a><span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 181 <p>An allocator always compares to false, as memory allocated with one instance can be deallocated by another instance </p>
 182 </li>
 183 </ol></div>
 184 </div>
 185 <div class="refsect2">
 186 <a name="idp191312560"></a><h3>
 187 <a name="idp50584544-bb"></a><code class="computeroutput">node_allocator</code> private member functions</h3>
 188 <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="identifier">pointer</span> <a name="idp50585120-bb"></a><span class="identifier">priv_allocation_command</span><span class="special">(</span><span class="identifier">allocation_type</span> command<span class="special">,</span>
 189                                 <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> limit_size<span class="special">,</span>
 190                                 <span class="identifier">size_type</span> <span class="special">&amp;</span> prefer_in_recvd_out_size<span class="special">,</span>
 191                                 <span class="identifier">pointer</span> <span class="special">&amp;</span> reuse<span class="special">)</span><span class="special">;</span></pre></li></ol></div>
 192 </div>
 193 </div>
 194 </div>
 195 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 196 <td align="left"></td>
 197 <td align="right"><div class="copyright-footer">Copyright &#169; 2009-2015 Ion Gaztanaga<p>
 198         Distributed under the Boost Software License, Version 1.0. (See accompanying
 199         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>)
 200       </p>
 201 </div></td>
 202 </tr></table>
 203 <hr>
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