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<div class="title">aligned_allocator< RawAllocator > Class Template Reference<div class="ingroups"><a class="el" href="group__adapter.html">Adapters and Wrappers</a></div></div> </div>
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<div class="textblock"><h3>template<class RawAllocator><br />
class foonathan::memory::aligned_allocator< RawAllocator ></h3>
<p>A <a href="md_doc_concepts.html#concept_rawallocator">RawAllocator</a> adapter that ensures a minimum alignment. </p>
<p>It adjusts the alignment value so that it is always larger than the minimum and forwards to the specified allocator. </p>
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Typedefs</h2></td></tr>
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using </td><td class="memItemRight" valign="bottom"><b>allocator_type</b> = typename <a class="el" href="classfoonathan_1_1memory_1_1allocator__traits.html">allocator_traits</a>< RawAllocator >::allocator_type</td></tr>
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using </td><td class="memItemRight" valign="bottom"><b>is_stateful</b> = std::true_type</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Member Functions</h2></td></tr>
<tr class="memitem:afc4be9c8949072715a6e3dddd47d1062"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#afc4be9c8949072715a6e3dddd47d1062">aligned_allocator</a> (std::size_t <a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a69d7d44691f1e3a1d4f277044f0082b4">min_alignment</a>, allocator_type &&alloc={})</td></tr>
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<tr class="memitem:a69d7d44691f1e3a1d4f277044f0082b4"><td class="memItemLeft" align="right" valign="top">std::size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a69d7d44691f1e3a1d4f277044f0082b4">min_alignment</a> () const noexcept</td></tr>
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<tr class="memitem:ac1222026c35a28c72f3c39d819e04ffc"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#ac1222026c35a28c72f3c39d819e04ffc">set_min_alignment</a> (std::size_t <a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a69d7d44691f1e3a1d4f277044f0082b4">min_alignment</a>)</td></tr>
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<tr class="memitem:aa4702d6ecac679c020a30fbe120fca26"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#aa4702d6ecac679c020a30fbe120fca26">aligned_allocator</a> (<a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html">aligned_allocator</a> &&other) noexcept</td></tr>
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<tr class="memitem:acfb10204387f94392411bbd43cd3663c"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html">aligned_allocator</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#acfb10204387f94392411bbd43cd3663c">operator=</a> (<a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html">aligned_allocator</a> &&other) noexcept</td></tr>
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<tr class="memitem:aa0774f4f3278b78aab48272657c8da07"><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#aa0774f4f3278b78aab48272657c8da07">allocate_node</a> (std::size_t size, std::size_t alignment)</td></tr>
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<tr class="memitem:a715b1b18b6b22f38918a3b9c9a9fae0b"><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a715b1b18b6b22f38918a3b9c9a9fae0b">allocate_array</a> (std::size_t count, std::size_t size, std::size_t alignment)</td></tr>
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<tr class="memitem:af39c4c8201ed3a86738d5571239e19db"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#af39c4c8201ed3a86738d5571239e19db">deallocate_node</a> (void *ptr, std::size_t size, std::size_t alignment) noexcept</td></tr>
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<tr class="memitem:a7f89da0a2dbd6ad5089178c828bb95df"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a7f89da0a2dbd6ad5089178c828bb95df">deallocate_array</a> (void *ptr, std::size_t count, std::size_t size, std::size_t alignment) noexcept</td></tr>
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<tr class="memitem:a592316c791828db1554c8152dbb512e0"><td class="memTemplParams" colspan="2">template<typename Dummy = std::true_type, FOONATHAN_REQUIRES(Dummy::value &&(composable::value)) > </td></tr>
<tr class="memitem:a592316c791828db1554c8152dbb512e0"><td class="memTemplItemLeft" align="right" valign="top">void * </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a592316c791828db1554c8152dbb512e0">try_allocate_node</a> (std::size_t size, std::size_t alignment) noexcept</td></tr>
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<tr class="memitem:ae1db4f3c7901fb7654a12b28704337d2"><td class="memTemplParams" colspan="2">template<typename Dummy = std::true_type, FOONATHAN_REQUIRES(Dummy::value &&(composable::value)) > </td></tr>
<tr class="memitem:ae1db4f3c7901fb7654a12b28704337d2"><td class="memTemplItemLeft" align="right" valign="top">void * </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#ae1db4f3c7901fb7654a12b28704337d2">try_allocate_array</a> (std::size_t count, std::size_t size, std::size_t alignment) noexcept</td></tr>
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<tr class="memitem:ae6c9e0f5870c99a1accc9f3584b5204e"><td class="memTemplParams" colspan="2">template<typename Dummy = std::true_type, FOONATHAN_REQUIRES(Dummy::value &&(composable::value)) > </td></tr>
<tr class="memitem:ae6c9e0f5870c99a1accc9f3584b5204e"><td class="memTemplItemLeft" align="right" valign="top">bool </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#ae6c9e0f5870c99a1accc9f3584b5204e">try_deallocate_node</a> (void *ptr, std::size_t size, std::size_t alignment) noexcept</td></tr>
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<tr class="memitem:a351b4f545a9cd775cee55a641ed41487"><td class="memTemplParams" colspan="2">template<typename Dummy = std::true_type, FOONATHAN_REQUIRES(Dummy::value &&(composable::value)) > </td></tr>
<tr class="memitem:a351b4f545a9cd775cee55a641ed41487"><td class="memTemplItemLeft" align="right" valign="top">bool </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a351b4f545a9cd775cee55a641ed41487">try_deallocate_array</a> (void *ptr, std::size_t count, std::size_t size, std::size_t alignment) noexcept</td></tr>
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<tr class="memitem:a64caa0912affaefd4778635a8a76294c"><td class="memItemLeft" align="right" valign="top">std::size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a64caa0912affaefd4778635a8a76294c">max_node_size</a> () const</td></tr>
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<tr class="memitem:a62f877acb00d33a3725a41c767152a5c"><td class="memItemLeft" align="right" valign="top">std::size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a62f877acb00d33a3725a41c767152a5c">max_array_size</a> () const</td></tr>
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<tr class="memitem:a43e724b99fe1eb9b9a986a993da27b3b"><td class="memItemLeft" align="right" valign="top">std::size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a43e724b99fe1eb9b9a986a993da27b3b">max_alignment</a> () const</td></tr>
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<tr class="memitem:a3ae445687ecb4a037b542ede5c6f48ac"><td class="memItemLeft" align="right" valign="top">allocator_type & </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a3ae445687ecb4a037b542ede5c6f48ac">get_allocator</a> () noexcept</td></tr>
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<tr class="memitem:a3071272ab0aa16b56563ba54251ee752"><td class="memItemLeft" align="right" valign="top">const allocator_type & </td><td class="memItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a3071272ab0aa16b56563ba54251ee752">get_allocator</a> () const noexcept</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="related"></a>
Related Functions</h2></td></tr>
<tr class="memitem:a49e3f2e61ea938eaa4f45e603e4c027e"><td class="memTemplParams" colspan="2">template<class RawAllocator > </td></tr>
<tr class="memitem:a49e3f2e61ea938eaa4f45e603e4c027e"><td class="memTemplItemLeft" align="right" valign="top">auto </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a49e3f2e61ea938eaa4f45e603e4c027e">make_aligned_allocator</a> (std::size_t <a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html#a69d7d44691f1e3a1d4f277044f0082b4">min_alignment</a>, RawAllocator &&allocator) noexcept -> <a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html">aligned_allocator</a>< typename std::decay< RawAllocator >::type ></td></tr>
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<h2 class="groupheader">Constructors</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#afc4be9c8949072715a6e3dddd47d1062">◆ </a></span>aligned_allocator() <span class="overload">[1/2]</span></h2>
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<td class="paramtype">std::size_t </td>
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<td class="paramtype">allocator_type && </td>
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<dl class="section user"><dt>Effects:</dt><dd>Creates it passing it the minimum alignment value and the allocator object. </dd></dl>
<dl class="section user"><dt>Requires:</dt><dd><code>min_alignment</code> must be less than <code>this->max_alignment()</code>. </dd></dl>
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<td class="paramtype"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html">aligned_allocator</a>< RawAllocator > && </td>
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<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
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<dl class="section user"><dt>Effects:</dt><dd>Moves the <code>aligned_allocator</code> object. It simply moves the underlying allocator. </dd></dl>
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<h2 class="groupheader">Member Functions</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#acfb10204387f94392411bbd43cd3663c">◆ </a></span>operator=()</h2>
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<td class="paramtype"><a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html">aligned_allocator</a>< RawAllocator > && </td>
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<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
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<dl class="section user"><dt>Effects:</dt><dd>Moves the <code>aligned_allocator</code> object. It simply moves the underlying allocator. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#aa0774f4f3278b78aab48272657c8da07">◆ </a></span>allocate_node()</h2>
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<td class="memname">void* allocate_node </td>
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<dl class="section user"><dt>Effects:</dt><dd>Forwards to the underlying allocator through the <a class="el" href="classfoonathan_1_1memory_1_1allocator__traits.html">allocator_traits</a>. If the <code>alignment</code> is less than the <code>min_alignment()</code>, it is set to the minimum alignment. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a715b1b18b6b22f38918a3b9c9a9fae0b">◆ </a></span>allocate_array()</h2>
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<td class="memname">void* allocate_array </td>
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<td class="paramtype">std::size_t </td>
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<dl class="section user"><dt>Effects:</dt><dd>Forwards to the underlying allocator through the <a class="el" href="classfoonathan_1_1memory_1_1allocator__traits.html">allocator_traits</a>. If the <code>alignment</code> is less than the <code>min_alignment()</code>, it is set to the minimum alignment. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#af39c4c8201ed3a86738d5571239e19db">◆ </a></span>deallocate_node()</h2>
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<td class="memname">void deallocate_node </td>
<td>(</td>
<td class="paramtype">void * </td>
<td class="paramname"><em>ptr</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>size</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>alignment</em> </td>
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<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
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<dl class="section user"><dt>Effects:</dt><dd>Forwards to the underlying allocator through the <a class="el" href="classfoonathan_1_1memory_1_1allocator__traits.html">allocator_traits</a>. If the <code>alignment</code> is less than the <code>min_alignment()</code>, it is set to the minimum alignment. </dd></dl>
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<a id="a7f89da0a2dbd6ad5089178c828bb95df"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7f89da0a2dbd6ad5089178c828bb95df">◆ </a></span>deallocate_array()</h2>
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<td class="memname">void deallocate_array </td>
<td>(</td>
<td class="paramtype">void * </td>
<td class="paramname"><em>ptr</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>count</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>size</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>alignment</em> </td>
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<td>)</td>
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<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
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<dl class="section user"><dt>Effects:</dt><dd>Forwards to the underlying allocator through the <a class="el" href="classfoonathan_1_1memory_1_1allocator__traits.html">allocator_traits</a>. If the <code>alignment</code> is less than the <code>min_alignment()</code>, it is set to the minimum alignment. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a592316c791828db1554c8152dbb512e0">◆ </a></span>try_allocate_node()</h2>
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<td class="memname">void* try_allocate_node </td>
<td>(</td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>size</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>alignment</em> </td>
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<td></td>
<td>)</td>
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<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
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<dl class="section user"><dt>Effects:</dt><dd>Forwards to the underlying allocator through the <a class="el" href="classfoonathan_1_1memory_1_1composable__allocator__traits.html">composable_allocator_traits</a>. If the <code>alignment</code> is less than the <code>min_alignment()</code>, it is set to the minimum alignment. </dd></dl>
<dl class="section user"><dt>Requires:</dt><dd>The underyling allocator must be composable. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ae1db4f3c7901fb7654a12b28704337d2">◆ </a></span>try_allocate_array()</h2>
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<td class="memname">void* try_allocate_array </td>
<td>(</td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>count</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>size</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>alignment</em> </td>
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<dl class="section user"><dt>Effects:</dt><dd>Forwards to the underlying allocator through the <a class="el" href="classfoonathan_1_1memory_1_1composable__allocator__traits.html">composable_allocator_traits</a>. If the <code>alignment</code> is less than the <code>min_alignment()</code>, it is set to the minimum alignment. </dd></dl>
<dl class="section user"><dt>Requires:</dt><dd>The underyling allocator must be composable. </dd></dl>
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<a id="ae6c9e0f5870c99a1accc9f3584b5204e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae6c9e0f5870c99a1accc9f3584b5204e">◆ </a></span>try_deallocate_node()</h2>
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<td class="memname">bool try_deallocate_node </td>
<td>(</td>
<td class="paramtype">void * </td>
<td class="paramname"><em>ptr</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>size</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">std::size_t </td>
<td class="paramname"><em>alignment</em> </td>
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<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
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<dl class="section user"><dt>Effects:</dt><dd>Forwards to the underlying allocator through the <a class="el" href="classfoonathan_1_1memory_1_1composable__allocator__traits.html">composable_allocator_traits</a>. If the <code>alignment</code> is less than the <code>min_alignment()</code>, it is set to the minimum alignment. </dd></dl>
<dl class="section user"><dt>Requires:</dt><dd>The underyling allocator must be composable. </dd></dl>
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<a id="a351b4f545a9cd775cee55a641ed41487"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a351b4f545a9cd775cee55a641ed41487">◆ </a></span>try_deallocate_array()</h2>
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<td class="memname">bool try_deallocate_array </td>
<td>(</td>
<td class="paramtype">void * </td>
<td class="paramname"><em>ptr</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>count</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>size</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::size_t </td>
<td class="paramname"><em>alignment</em> </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
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<dl class="section user"><dt>Effects:</dt><dd>Forwards to the underlying allocator through the <a class="el" href="classfoonathan_1_1memory_1_1composable__allocator__traits.html">composable_allocator_traits</a>. If the <code>alignment</code> is less than the <code>min_alignment()</code>, it is set to the minimum alignment. </dd></dl>
<dl class="section user"><dt>Requires:</dt><dd>The underyling allocator must be composable. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a64caa0912affaefd4778635a8a76294c">◆ </a></span>max_node_size()</h2>
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<td class="memname">std::size_t max_node_size </td>
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<dl class="section user"><dt>Returns:</dt><dd>The value returned by the <a class="el" href="classfoonathan_1_1memory_1_1allocator__traits.html">allocator_traits</a> for the underlying allocator. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a62f877acb00d33a3725a41c767152a5c">◆ </a></span>max_array_size()</h2>
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<td class="memname">std::size_t max_array_size </td>
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<dl class="section user"><dt>Returns:</dt><dd>The value returned by the <a class="el" href="classfoonathan_1_1memory_1_1allocator__traits.html">allocator_traits</a> for the underlying allocator. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a43e724b99fe1eb9b9a986a993da27b3b">◆ </a></span>max_alignment()</h2>
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<td class="memname">std::size_t max_alignment </td>
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<dl class="section user"><dt>Returns:</dt><dd>The value returned by the <a class="el" href="classfoonathan_1_1memory_1_1allocator__traits.html">allocator_traits</a> for the underlying allocator. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a3ae445687ecb4a037b542ede5c6f48ac">◆ </a></span>get_allocator() <span class="overload">[1/2]</span></h2>
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<td class="memname">allocator_type& get_allocator </td>
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<dl class="section user"><dt>Returns:</dt><dd>A reference to the underlying allocator. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a3071272ab0aa16b56563ba54251ee752">◆ </a></span>get_allocator() <span class="overload">[2/2]</span></h2>
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<td class="memname">const allocator_type& get_allocator </td>
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<td class="paramname"></td><td>)</td>
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<dl class="section user"><dt>Returns:</dt><dd>A reference to the underlying allocator. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a69d7d44691f1e3a1d4f277044f0082b4">◆ </a></span>min_alignment()</h2>
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<td class="memname">std::size_t min_alignment </td>
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<td class="paramname"></td><td>)</td>
<td> const</td>
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<dl class="section user"><dt>Returns:</dt><dd>The minimum alignment. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ac1222026c35a28c72f3c39d819e04ffc">◆ </a></span>set_min_alignment()</h2>
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<td class="memname">void set_min_alignment </td>
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<td class="paramtype">std::size_t </td>
<td class="paramname"><em>min_alignment</em></td><td>)</td>
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<dl class="section user"><dt>Effects:</dt><dd>Sets the minimum alignment to a new value. </dd></dl>
<dl class="section user"><dt>Requires:</dt><dd><code>min_alignment</code> must be less than <code>this->max_alignment()</code>. </dd></dl>
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<h2 class="groupheader">Related Functions</h2>
<a id="a49e3f2e61ea938eaa4f45e603e4c027e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a49e3f2e61ea938eaa4f45e603e4c027e">◆ </a></span>make_aligned_allocator()</h2>
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<td class="memname">auto make_aligned_allocator </td>
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<td class="paramtype">RawAllocator && </td>
<td class="paramname"><em>allocator</em> </td>
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<td>)</td>
<td></td><td> -> <a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html">aligned_allocator</a><typename std::decay<RawAllocator>::type>
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<span class="mlabels"><span class="mlabel">related</span></span> </td>
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<dl class="section user"><dt>Returns:</dt><dd>A new <a class="el" href="classfoonathan_1_1memory_1_1aligned__allocator.html">aligned_allocator</a> created by forwarding the parameters to the constructor. </dd></dl>
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