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<div class="title">__gnu_cxx::__alloc_traits< _Alloc > Struct Template Reference<div class="ingroups"><a class="el" href="a01651.html">Allocators</a></div></div> </div>
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Inheritance diagram for __gnu_cxx::__alloc_traits< _Alloc >:</div>
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<div class="center"><img src="a01989.png" border="0" usemap="#____gnu__cxx_1_1____alloc__traits_3_01___alloc_01_4_inherit__map" alt="Inheritance graph"/></div>
<map name="____gnu__cxx_1_1____alloc__traits_3_01___alloc_01_4_inherit__map" id="____gnu__cxx_1_1____alloc__traits_3_01___alloc_01_4_inherit__map">
<area shape="rect" id="node5" href="a00001.html" title="__gnu_cxx::__alloc\l_traits\< _Tp_alloc_type \>" alt="" coords="5,198,163,237"/><area shape="rect" id="node2" href="a00427.html" title="Uniform interface to all allocator types." alt="" coords="22,6,145,45"/></map>
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Public Types</h2></td></tr>
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typedef <a class="el" href="a00427.html">std::allocator_traits</a><br class="typebreak"/>
< _Alloc > </td><td class="memItemRight" valign="bottom"><b>_Base_type</b></td></tr>
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<tr class="memitem:a259e6390cd5735797f497eda14e42054"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a259e6390cd5735797f497eda14e42054"></a>
typedef _Alloc </td><td class="memItemRight" valign="bottom"><b>allocator_type</b></td></tr>
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<tr class="memitem:a334b5cb744d65c702eb1550ce21551fd"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a334b5cb744d65c702eb1550ce21551fd"></a>
typedef <a class="el" href="a00427.html#a9f5af8cc851146c64ea7a846477c2c46">_Base_type::const_pointer</a> </td><td class="memItemRight" valign="bottom"><b>const_pointer</b></td></tr>
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<tr class="memitem:a216bc9a9c35aebecd73a550fa77ed20c"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a216bc9a9c35aebecd73a550fa77ed20c"></a>
typedef const <a class="el" href="a00427.html#aa51dca0f6ab162918c10679e8feb57df">value_type</a> & </td><td class="memItemRight" valign="bottom"><b>const_reference</b></td></tr>
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<tr class="memitem:ad2eb6f18c8a2ff167bc276f2ca6c89e2"><td class="memItemLeft" align="right" valign="top">typedef __const_void_pointer </td><td class="memItemRight" valign="bottom"><a class="el" href="a00427.html#ad2eb6f18c8a2ff167bc276f2ca6c89e2">const_void_pointer</a></td></tr>
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<tr class="memitem:a3e7a121977c8b44d247526a3f8d655f8"><td class="memItemLeft" align="right" valign="top">typedef __difference_type </td><td class="memItemRight" valign="bottom"><a class="el" href="a00427.html#a3e7a121977c8b44d247526a3f8d655f8">difference_type</a></td></tr>
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<tr class="memitem:a2ddbfad25c431af397b61b19f8533b24"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2ddbfad25c431af397b61b19f8533b24"></a>
typedef <a class="el" href="a00427.html#a8fa48f2bd3c8a0c32836872689b2ca62">_Base_type::pointer</a> </td><td class="memItemRight" valign="bottom"><b>pointer</b></td></tr>
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<tr class="memitem:aaf8537cdd5491ce78baf889aa79c9216"><td class="memItemLeft" align="right" valign="top">typedef <br class="typebreak"/>
__propagate_on_container_copy_assignment </td><td class="memItemRight" valign="bottom"><a class="el" href="a00427.html#aaf8537cdd5491ce78baf889aa79c9216">propagate_on_container_copy_assignment</a></td></tr>
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<tr class="memitem:aaa25d41df1ee33bc852b46687f42c8a2"><td class="memItemLeft" align="right" valign="top">typedef <br class="typebreak"/>
__propagate_on_container_move_assignment </td><td class="memItemRight" valign="bottom"><a class="el" href="a00427.html#aaa25d41df1ee33bc852b46687f42c8a2">propagate_on_container_move_assignment</a></td></tr>
<tr class="separator:aaa25d41df1ee33bc852b46687f42c8a2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab473299e767e1bd58e5b71f0a87c05b1"><td class="memItemLeft" align="right" valign="top">typedef <br class="typebreak"/>
__propagate_on_container_swap </td><td class="memItemRight" valign="bottom"><a class="el" href="a00427.html#ab473299e767e1bd58e5b71f0a87c05b1">propagate_on_container_swap</a></td></tr>
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template<typename _Tp > </td></tr>
<tr class="memitem:a797b3c598e0d37018cb71b24637c7992"><td class="memTemplItemLeft" align="right" valign="top">using </td><td class="memTemplItemRight" valign="bottom"><b>rebind_alloc</b> = typename __alloctr_rebind< _Alloc, _Tp >::__type</td></tr>
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template<typename _Tp > </td></tr>
<tr class="memitem:a23b67812aeb069db6a4d4ba4d563d2ba"><td class="memTemplItemLeft" align="right" valign="top">using </td><td class="memTemplItemRight" valign="bottom"><b>rebind_traits</b> = allocator_traits< rebind_alloc< _Tp >></td></tr>
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<tr class="memitem:a0a4e9bcdce619003f1a334f546e44209"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a0a4e9bcdce619003f1a334f546e44209"></a>
typedef <a class="el" href="a00427.html#aa51dca0f6ab162918c10679e8feb57df">value_type</a> & </td><td class="memItemRight" valign="bottom"><b>reference</b></td></tr>
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typedef <a class="el" href="a00427.html#aba783acc03d73b750b1525250084f104">_Base_type::size_type</a> </td><td class="memItemRight" valign="bottom"><b>size_type</b></td></tr>
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typedef <a class="el" href="a00427.html#aa51dca0f6ab162918c10679e8feb57df">_Base_type::value_type</a> </td><td class="memItemRight" valign="bottom"><b>value_type</b></td></tr>
<tr class="separator:af5ad9996f0877bc81e6ad43ea7ad9c0f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7bf3224b11fa6d5a86d3c9bcfa9bae40"><td class="memItemLeft" align="right" valign="top">typedef __void_pointer </td><td class="memItemRight" valign="bottom"><a class="el" href="a00427.html#a7bf3224b11fa6d5a86d3c9bcfa9bae40">void_pointer</a></td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
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static constexpr bool </td><td class="memItemRight" valign="bottom"><b>_S_always_equal</b> ()</td></tr>
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static constexpr bool </td><td class="memItemRight" valign="bottom"><b>_S_nothrow_move</b> ()</td></tr>
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static constexpr bool </td><td class="memItemRight" valign="bottom"><b>_S_nothrow_swap</b> ()</td></tr>
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static void </td><td class="memItemRight" valign="bottom"><b>_S_on_swap</b> (_Alloc &__a, _Alloc &__b)</td></tr>
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static constexpr bool </td><td class="memItemRight" valign="bottom"><b>_S_propagate_on_copy_assign</b> ()</td></tr>
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static constexpr bool </td><td class="memItemRight" valign="bottom"><b>_S_propagate_on_move_assign</b> ()</td></tr>
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static constexpr bool </td><td class="memItemRight" valign="bottom"><b>_S_propagate_on_swap</b> ()</td></tr>
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<tr class="memitem:a7dd502428a6676565e4c0213beff2f4b"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7dd502428a6676565e4c0213beff2f4b"></a>
static _Alloc </td><td class="memItemRight" valign="bottom"><b>_S_select_on_copy</b> (const _Alloc &__a)</td></tr>
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<tr class="memitem:a1afbf725286c9e82ba6166dcc04b10bc"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="a00427.html#a8fa48f2bd3c8a0c32836872689b2ca62">pointer</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00427.html#a1afbf725286c9e82ba6166dcc04b10bc">allocate</a> (_Alloc &__a, <a class="el" href="a00427.html#aba783acc03d73b750b1525250084f104">size_type</a> __n)</td></tr>
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<tr class="memitem:a79296fdf0f48ef0a49f2d5de6193f867"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="a00427.html#a8fa48f2bd3c8a0c32836872689b2ca62">pointer</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00427.html#a79296fdf0f48ef0a49f2d5de6193f867">allocate</a> (_Alloc &__a, <a class="el" href="a00427.html#aba783acc03d73b750b1525250084f104">size_type</a> __n, <a class="el" href="a00427.html#ad2eb6f18c8a2ff167bc276f2ca6c89e2">const_void_pointer</a> __hint)</td></tr>
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template<typename _Ptr , typename... _Args> </td></tr>
<tr class="memitem:aa60c4e92aff8d514be090d02396f1079"><td class="memTemplItemLeft" align="right" valign="top">static <a class="el" href="a00441.html">std::enable_if</a><br class="typebreak"/>
< __is_custom_pointer< _Ptr ><br class="typebreak"/>
::value >::type </td><td class="memTemplItemRight" valign="bottom"><b>construct</b> (_Alloc &__a, _Ptr __p, _Args &&...__args)</td></tr>
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<tr class="memitem:a6d401f7a4ef23aefcd37c5331e3be4bf"><td class="memTemplParams" colspan="2">template<typename _Tp , typename... _Args> </td></tr>
<tr class="memitem:a6d401f7a4ef23aefcd37c5331e3be4bf"><td class="memTemplItemLeft" align="right" valign="top">static void </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00427.html#a6d401f7a4ef23aefcd37c5331e3be4bf">construct</a> (_Alloc &__a, _Tp *__p, _Args &&...__args)</td></tr>
<tr class="separator:a6d401f7a4ef23aefcd37c5331e3be4bf"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ae5f6b86b98b17e2ba39243ca8eaf4ee1"><td class="memItemLeft" align="right" valign="top">static void </td><td class="memItemRight" valign="bottom"><a class="el" href="a00427.html#ae5f6b86b98b17e2ba39243ca8eaf4ee1">deallocate</a> (_Alloc &__a, <a class="el" href="a00427.html#a8fa48f2bd3c8a0c32836872689b2ca62">pointer</a> __p, <a class="el" href="a00427.html#aba783acc03d73b750b1525250084f104">size_type</a> __n)</td></tr>
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<tr class="memitem:a2fde4ebddaf68ba0b4dd40150fdf1d65"><td class="memTemplParams" colspan="2"><a class="anchor" id="a2fde4ebddaf68ba0b4dd40150fdf1d65"></a>
template<typename _Ptr > </td></tr>
<tr class="memitem:a2fde4ebddaf68ba0b4dd40150fdf1d65"><td class="memTemplItemLeft" align="right" valign="top">static <a class="el" href="a00441.html">std::enable_if</a><br class="typebreak"/>
< __is_custom_pointer< _Ptr ><br class="typebreak"/>
::value >::type </td><td class="memTemplItemRight" valign="bottom"><b>destroy</b> (_Alloc &__a, _Ptr __p)</td></tr>
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<tr class="memitem:ac73f3d164cf01c9d61b44d42c30db3d3"><td class="memTemplParams" colspan="2">template<class _Tp > </td></tr>
<tr class="memitem:ac73f3d164cf01c9d61b44d42c30db3d3"><td class="memTemplItemLeft" align="right" valign="top">static void </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00427.html#ac73f3d164cf01c9d61b44d42c30db3d3">destroy</a> (_Alloc &__a, _Tp *__p)</td></tr>
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<tr class="memitem:a0d76358798c1344c97c5ee3455629bd2"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="a00427.html#aba783acc03d73b750b1525250084f104">size_type</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00427.html#a0d76358798c1344c97c5ee3455629bd2">max_size</a> (const _Alloc &__a)</td></tr>
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<tr class="memitem:ac324d9065f45f7ae2dd1e0014c73f218"><td class="memItemLeft" align="right" valign="top">static _Alloc </td><td class="memItemRight" valign="bottom"><a class="el" href="a00427.html#ac324d9065f45f7ae2dd1e0014c73f218">select_on_container_copy_construction</a> (const _Alloc &__rhs)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template<typename _Alloc><br/>
struct __gnu_cxx::__alloc_traits< _Alloc ></h3>
<p>Uniform interface to C++98 and C++0x allocators. </p>
<p>Definition at line <a class="el" href="a00979_source.html#l00109">109</a> of file <a class="el" href="a00979_source.html">ext/alloc_traits.h</a>.</p>
</div><h2 class="groupheader">Member Typedef Documentation</h2>
<a class="anchor" id="ad2eb6f18c8a2ff167bc276f2ca6c89e2"></a>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template<typename _Alloc> </div>
<table class="mlabels">
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<table class="memname">
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<td class="memname">typedef __const_void_pointer <a class="el" href="a00427.html">std::allocator_traits</a>< _Alloc >::<a class="el" href="a00427.html#ad2eb6f18c8a2ff167bc276f2ca6c89e2">const_void_pointer</a></td>
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<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inherited</span></span> </td>
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</div><div class="memdoc">
<p>The allocator's const void pointer type. </p>
<p><code>Alloc::const_void_pointer</code> if that type exists, otherwise <code> pointer_traits<pointer>::rebind<const void> </code> </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00139">139</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<td class="memname">typedef __difference_type <a class="el" href="a00427.html">std::allocator_traits</a>< _Alloc >::<a class="el" href="a00427.html#a3e7a121977c8b44d247526a3f8d655f8">difference_type</a></td>
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<span class="mlabels"><span class="mlabel">inherited</span></span> </td>
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<p>The allocator's difference type. </p>
<p><code>Alloc::difference_type</code> if that type exists, otherwise <code> <a class="el" href="a00878.html#a8342c6ffe992cf695fc6b68aa8c7acd2" title="Type used to represent the difference between two pointers.">pointer_traits<pointer>::difference_type</a> </code> </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00150">150</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<td class="memname">typedef __propagate_on_container_copy_assignment <a class="el" href="a00427.html">std::allocator_traits</a>< _Alloc >::<a class="el" href="a00427.html#aaf8537cdd5491ce78baf889aa79c9216">propagate_on_container_copy_assignment</a></td>
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<p>How the allocator is propagated on copy assignment. </p>
<p><code>Alloc::propagate_on_container_copy_assignment</code> if that type exists, otherwise <code>false_type</code> </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00173">173</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<td class="memname">typedef __propagate_on_container_move_assignment <a class="el" href="a00427.html">std::allocator_traits</a>< _Alloc >::<a class="el" href="a00427.html#aaa25d41df1ee33bc852b46687f42c8a2">propagate_on_container_move_assignment</a></td>
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<span class="mlabels"><span class="mlabel">inherited</span></span> </td>
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<p>How the allocator is propagated on move assignment. </p>
<p><code>Alloc::propagate_on_container_move_assignment</code> if that type exists, otherwise <code>false_type</code> </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00185">185</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<td class="memname">typedef __propagate_on_container_swap <a class="el" href="a00427.html">std::allocator_traits</a>< _Alloc >::<a class="el" href="a00427.html#ab473299e767e1bd58e5b71f0a87c05b1">propagate_on_container_swap</a></td>
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<p>How the allocator is propagated on swap. </p>
<p><code>Alloc::propagate_on_container_swap</code> if that type exists, otherwise <code>false_type</code> </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00196">196</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<td class="memname">typedef __void_pointer <a class="el" href="a00427.html">std::allocator_traits</a>< _Alloc >::<a class="el" href="a00427.html#a7bf3224b11fa6d5a86d3c9bcfa9bae40">void_pointer</a></td>
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<span class="mlabels"><span class="mlabel">inherited</span></span> </td>
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<p>The allocator's void pointer type. </p>
<p><code>Alloc::void_pointer</code> if that type exists, otherwise <code> pointer_traits<pointer>::rebind<void> </code> </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00128">128</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">static <a class="el" href="a00427.html#a8fa48f2bd3c8a0c32836872689b2ca62">pointer</a> <a class="el" href="a00427.html">std::allocator_traits</a>< _Alloc >::allocate </td>
<td>(</td>
<td class="paramtype">_Alloc & </td>
<td class="paramname"><em>__a</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="a00427.html#aba783acc03d73b750b1525250084f104">size_type</a> </td>
<td class="paramname"><em>__n</em> </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<p>Allocate memory. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">__a</td><td>An allocator. </td></tr>
<tr><td class="paramname">__n</td><td>The number of objects to allocate space for.</td></tr>
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</dd>
</dl>
<p>Calls <code>a.allocate(n)</code> </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00348">348</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<td class="memname">static <a class="el" href="a00427.html#a8fa48f2bd3c8a0c32836872689b2ca62">pointer</a> <a class="el" href="a00427.html">std::allocator_traits</a>< _Alloc >::allocate </td>
<td>(</td>
<td class="paramtype">_Alloc & </td>
<td class="paramname"><em>__a</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="a00427.html#aba783acc03d73b750b1525250084f104">size_type</a> </td>
<td class="paramname"><em>__n</em>, </td>
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<td></td>
<td class="paramtype"><a class="el" href="a00427.html#ad2eb6f18c8a2ff167bc276f2ca6c89e2">const_void_pointer</a> </td>
<td class="paramname"><em>__hint</em> </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<p>Allocate memory. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">__a</td><td>An allocator. </td></tr>
<tr><td class="paramname">__n</td><td>The number of objects to allocate space for. </td></tr>
<tr><td class="paramname">__hint</td><td>Aid to locality. </td></tr>
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</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Memory of suitable size and alignment for <em>n</em> objects of type <code>value_type</code> </dd></dl>
<p>Returns <code> a.allocate(n, hint) </code> if that expression is well-formed, otherwise returns <code>a.allocate(n)</code> </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00363">363</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<td class="memname">static void <a class="el" href="a00427.html">std::allocator_traits</a>< _Alloc >::construct </td>
<td>(</td>
<td class="paramtype">_Alloc & </td>
<td class="paramname"><em>__a</em>, </td>
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<td class="paramtype">_Tp * </td>
<td class="paramname"><em>__p</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">_Args &&... </td>
<td class="paramname"><em>__args</em> </td>
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<td>)</td>
<td></td><td></td>
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<p>Construct an object of type <em>_Tp</em>. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">__a</td><td>An allocator. </td></tr>
<tr><td class="paramname">__p</td><td>Pointer to memory of suitable size and alignment for Tp </td></tr>
<tr><td class="paramname">__args</td><td>Constructor arguments.</td></tr>
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<p>Calls <code> __a.construct(__p, std::forward<Args>(__args)...) </code> if that expression is well-formed, otherwise uses placement-new to construct an object of type <em>_Tp</em> at location <em>__p</em> from the arguments <em>__args</em>... </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00389">389</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<td>(</td>
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<td class="paramname"><em>__p</em>, </td>
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<td class="paramtype"><a class="el" href="a00427.html#aba783acc03d73b750b1525250084f104">size_type</a> </td>
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<td>)</td>
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<p>Deallocate memory. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">__a</td><td>An allocator. </td></tr>
<tr><td class="paramname">__p</td><td>Pointer to the memory to deallocate. </td></tr>
<tr><td class="paramname">__n</td><td>The number of objects space was allocated for.</td></tr>
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<p>Calls <code> a.deallocate(p, n) </code> </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00374">374</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<td>(</td>
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<td class="paramname"><em>__a</em>, </td>
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<td class="paramtype">_Tp * </td>
<td class="paramname"><em>__p</em> </td>
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<td></td><td></td>
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<p>Destroy an object of type <em>_Tp</em>. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">__a</td><td>An allocator. </td></tr>
<tr><td class="paramname">__p</td><td>Pointer to the object to destroy</td></tr>
</table>
</dd>
</dl>
<p>Calls <code>__a.destroy(__p)</code> if that expression is well-formed, otherwise calls <code>__p->~_Tp()</code> </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00401">401</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<p>The maximum supported allocation size. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">__a</td><td>An allocator. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><code>__a.max_size()</code> or <code><a class="el" href="a01648.html#ga47fe7a943a5b88c1bba1032392a04671" title="This does what you think it does.">numeric_limits<size_type>::max()</a></code> </dd></dl>
<p>Returns <code>__a.max_size()</code> if that expression is well-formed, otherwise returns <code><a class="el" href="a01648.html#ga47fe7a943a5b88c1bba1032392a04671" title="This does what you think it does.">numeric_limits<size_type>::max()</a></code> </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00412">412</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<td class="memname">static _Alloc <a class="el" href="a00427.html">std::allocator_traits</a>< _Alloc >::select_on_container_copy_construction </td>
<td>(</td>
<td class="paramtype">const _Alloc & </td>
<td class="paramname"><em>__rhs</em></td><td>)</td>
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<p>Obtain an allocator to use when copying a container. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">__rhs</td><td>An allocator. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><code>__rhs.select_on_container_copy_construction()</code> or <em>__rhs</em> </dd></dl>
<p>Returns <code>__rhs.select_on_container_copy_construction()</code> if that expression is well-formed, otherwise returns <em>__rhs</em> </p>
<p>Definition at line <a class="el" href="a00978_source.html#l00424">424</a> of file <a class="el" href="a00978_source.html">bits/alloc_traits.h</a>.</p>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li><a class="el" href="a00979_source.html">ext/alloc_traits.h</a></li>
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