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<a name="boost.container.small_vector_allocator"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Class template small_vector_allocator</span></h2>
<p>boost::container::small_vector_allocator</p>
</div>
<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../boost_container_header_reference.html#header.boost.container.small_vector_hpp" title="Header <boost/container/small_vector.hpp>">boost/container/small_vector.hpp</a>>
</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Allocator<span class="special">></span>
<span class="keyword">class</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">Allocator</span> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
<span class="comment">// types</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="identifier">value_type</span> <a name="boost.container.small_vector_allocator.value_type"></a><span class="identifier">value_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="identifier">pointer</span> <a name="boost.container.small_vector_allocator.pointer"></a><span class="identifier">pointer</span><span class="special">;</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="identifier">const_pointer</span> <a name="boost.container.small_vector_allocator.const_pointer"></a><span class="identifier">const_pointer</span><span class="special">;</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="identifier">reference</span> <a name="boost.container.small_vector_allocator.reference"></a><span class="identifier">reference</span><span class="special">;</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="identifier">const_reference</span> <a name="boost.container.small_vector_allocator.const_reference"></a><span class="identifier">const_reference</span><span class="special">;</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="identifier">size_type</span> <a name="boost.container.small_vector_allocator.size_type"></a><span class="identifier">size_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="identifier">difference_type</span> <a name="boost.container.small_vector_allocator.difference_type"></a><span class="identifier">difference_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="identifier">void_pointer</span> <a name="boost.container.small_vector_allocator.void_pointer"></a><span class="identifier">void_pointer</span><span class="special">;</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="identifier">const_void_pointer</span> <a name="boost.container.small_vector_allocator.const_void_pointer"></a><span class="identifier">const_void_pointer</span><span class="special">;</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="identifier">propagate_on_container_copy_assignment</span> <a name="boost.container.small_vector_allocator.propagate_on_c_idp48046832"></a><span class="identifier">propagate_on_container_copy_assignment</span><span class="special">;</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="identifier">propagate_on_container_move_assignment</span> <a name="boost.container.small_vector_allocator.propagate_on_c_idp48048016"></a><span class="identifier">propagate_on_container_move_assignment</span><span class="special">;</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="identifier">propagate_on_container_swap</span> <a name="boost.container.small_vector_allocator.propagate_on_c_idp48049200"></a><span class="identifier">propagate_on_container_swap</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">implementation_defined</span> <a name="boost.container.small_vector_allocator.is_always_equal"></a><span class="identifier">is_always_equal</span><span class="special">;</span> <span class="comment">// An integral constant with member <code class="computeroutput">value == false</code></span>
<span class="keyword">typedef</span> <span class="identifier">implementation_defined</span> <a name="boost.container.small_vector_allocator.is_partially_propagable"></a><span class="identifier">is_partially_propagable</span><span class="special">;</span> <span class="comment">// An integral constant with member <code class="computeroutput">value == true</code></span>
<span class="comment">// member classes/structs/unions</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T2<span class="special">></span>
<span class="keyword">struct</span> <a class="link" href="small_vector_allocator/rebind.html" title="Struct template rebind">rebind</a> <span class="special">{</span>
<span class="comment">// types</span>
<span class="keyword">typedef</span> <a class="link" href="allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><span class="special"><</span> <span class="identifier">Allocator</span> <span class="special">></span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">rebind_alloc</span><span class="special"><</span> <span class="identifier">T2</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> <a class="link" href="small_vector_allocator/rebind.html#boost.container.small_vector_allocator.rebind.other"><span class="identifier">other</span></a><span class="special">;</span>
<span class="special">}</span><span class="special">;</span>
<span class="comment">// <a class="link" href="small_vector_allocator.html#boost.container.small_vector_allocatorconstruct-copy-destruct">construct/copy/destruct</a></span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span><span class="special">...</span> Args<span class="special">></span> <span class="keyword">explicit</span> <a class="link" href="small_vector_allocator.html#idp48064768-bb"><span class="identifier">small_vector_allocator</span></a><span class="special">(</span><span class="identifier">Args</span> <span class="special">&&</span><span class="special">...</span><span class="special">)</span><span class="special">;</span>
<a class="link" href="small_vector_allocator.html#idp48067456-bb"><span class="identifier">small_vector_allocator</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<a class="link" href="small_vector_allocator.html#idp48070320-bb"><span class="identifier">small_vector_allocator</span></a><span class="special">(</span><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> OtherAllocator<span class="special">></span>
<a class="link" href="small_vector_allocator.html#idp48073024-bb"><span class="identifier">small_vector_allocator</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a><span class="special"><</span> <span class="identifier">OtherAllocator</span> <span class="special">></span> <span class="special">&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> OtherAllocator<span class="special">></span>
<a class="link" href="small_vector_allocator.html#idp48076752-bb"><span class="identifier">small_vector_allocator</span></a><span class="special">(</span><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a><span class="special"><</span> <span class="identifier">OtherAllocator</span> <span class="special">></span> <span class="special">&&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span> <a class="link" href="small_vector_allocator.html#idp48080320-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span> <a class="link" href="small_vector_allocator.html#idp48083760-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> OtherAllocator<span class="special">></span>
<a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span>
<a class="link" href="small_vector_allocator.html#idp48087056-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a><span class="special"><</span> <span class="identifier">OtherAllocator</span> <span class="special">></span> <span class="special">&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> OtherAllocator<span class="special">></span>
<a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span>
<a class="link" href="small_vector_allocator.html#idp48091360-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a><span class="special"><</span> <span class="identifier">OtherAllocator</span> <span class="special">></span> <span class="special">&&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="comment">// <a class="link" href="small_vector_allocator.html#idp48053584-bb">public member functions</a></span>
<span class="identifier">pointer</span> <a class="link" href="small_vector_allocator.html#idp48054144-bb"><span class="identifier">allocate</span></a><span class="special">(</span><span class="identifier">size_type</span><span class="special">,</span> <span class="identifier">const_void_pointer</span> <span class="special">=</span> <span class="identifier">const_void_pointer</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">void</span> <a class="link" href="small_vector_allocator.html#idp48056992-bb"><span class="identifier">deallocate</span></a><span class="special">(</span><span class="identifier">pointer</span><span class="special">,</span> <span class="identifier">size_type</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="identifier">size_type</span> <a class="link" href="small_vector_allocator.html#idp48059936-bb"><span class="identifier">max_size</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span>
<a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <a class="link" href="small_vector_allocator.html#idp48061536-bb"><span class="identifier">select_on_container_copy_construction</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="keyword">bool</span> <a class="link" href="small_vector_allocator.html#idp48062800-bb"><span class="identifier">storage_is_unpropagable</span></a><span class="special">(</span><span class="identifier">pointer</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="comment">// <a class="link" href="small_vector_allocator.html#idp48095504-bb">friend functions</a></span>
<span class="keyword">friend</span> <span class="keyword">void</span> <a class="link" href="small_vector_allocator.html#idp48096064-bb"><span class="identifier">swap</span></a><span class="special">(</span><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span><span class="special">,</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="small_vector_allocator.html#idp48100336-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span><span class="special">,</span>
<span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="keyword">friend</span> <span class="keyword">bool</span> <a class="link" href="small_vector_allocator.html#idp48105024-bb"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span><span class="special">,</span>
<span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp296097712"></a><h2>Description</h2>
<p>A non-standard allocator used to implement <code class="computeroutput"><a class="link" href="small_vector.html" title="Class template small_vector">small_vector</a></code>. Users should never use it directly. It is described here for documentation purposes.</p>
<p>This allocator inherits from a standard-conforming allocator and forwards member functions to the standard allocator except when internal storage is being used as memory source.</p>
<p>This allocator is a "partially_propagable" allocator and defines <code class="computeroutput">is_partially_propagable</code> as true_type.</p>
<p>A partially propagable allocator means that not all storage allocatod by an instance of <code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code> can be deallocated by another instance of this type, even if both instances compare equal or an instance is propagated to another one using the copy/move constructor or assignment. The storage that can never be propagated is identified by <code class="computeroutput">storage_is_unpropagable(p)</code>.</p>
<p><code class="computeroutput"><a class="link" href="vector.html" title="Class template vector">boost::container::vector</a></code> supports partially propagable allocators fallbacking to deep copy/swap/move operations when internal storage is being used to store vector elements.</p>
<p><code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code> assumes that will be instantiated as <code class="computeroutput"><a class="link" href="vector.html" title="Class template vector">boost::container::vector</a>< T, <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a><Allocator> ></code> and internal storage can be obtained downcasting that vector to <code class="computeroutput"><a class="link" href="small_vector_base.html" title="Class template small_vector_base">small_vector_base</a><T></code>. </p>
<div class="refsect2">
<a name="idp296110464"></a><h3>
<a name="boost.container.small_vector_allocatorconstruct-copy-destruct"></a><code class="computeroutput">small_vector_allocator</code>
public
construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span><span class="special">...</span> Args<span class="special">></span> <span class="keyword">explicit</span> <a name="idp48064768-bb"></a><span class="identifier">small_vector_allocator</span><span class="special">(</span><span class="identifier">Args</span> <span class="special">&&</span><span class="special">...</span> args<span class="special">)</span><span class="special">;</span></pre>Constructor from arbitrary arguments. </li>
<li class="listitem">
<pre class="literallayout"><a name="idp48067456-bb"></a><span class="identifier">small_vector_allocator</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span> other<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>Constructor from other <code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code>. Never throws </p>
</li>
<li class="listitem">
<pre class="literallayout"><a name="idp48070320-bb"></a><span class="identifier">small_vector_allocator</span><span class="special">(</span><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&&</span> other<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>Move constructor from <code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code>. Never throws </p>
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<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> OtherAllocator<span class="special">></span>
<a name="idp48073024-bb"></a><span class="identifier">small_vector_allocator</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a><span class="special"><</span> <span class="identifier">OtherAllocator</span> <span class="special">></span> <span class="special">&</span> other<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>Constructor from related <code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code>. Never throws </p>
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<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> OtherAllocator<span class="special">></span>
<a name="idp48076752-bb"></a><span class="identifier">small_vector_allocator</span><span class="special">(</span><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a><span class="special"><</span> <span class="identifier">OtherAllocator</span> <span class="special">></span> <span class="special">&&</span> other<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>Move constructor from related <code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code>. Never throws </p>
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<li class="listitem">
<pre class="literallayout"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span>
<a name="idp48080320-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span> other<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>Assignment from other <code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code>. Never throws </p>
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<li class="listitem">
<pre class="literallayout"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span> <a name="idp48083760-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&&</span> other<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>Move constructor from other <code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code>. Never throws </p>
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<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> OtherAllocator<span class="special">></span>
<a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span>
<a name="idp48087056-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a><span class="special"><</span> <span class="identifier">OtherAllocator</span> <span class="special">></span> <span class="special">&</span> other<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>Assignment from related <code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code>. Never throws </p>
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<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> OtherAllocator<span class="special">></span>
<a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span>
<a name="idp48091360-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a><span class="special"><</span> <span class="identifier">OtherAllocator</span> <span class="special">></span> <span class="special">&&</span> other<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>Move assignment from related <code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code>. Never throws </p>
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<div class="refsect2">
<a name="idp296210448"></a><h3>
<a name="idp48053584-bb"></a><code class="computeroutput">small_vector_allocator</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
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<pre class="literallayout"><span class="identifier">pointer</span> <a name="idp48054144-bb"></a><span class="identifier">allocate</span><span class="special">(</span><span class="identifier">size_type</span> count<span class="special">,</span>
<span class="identifier">const_void_pointer</span> hint <span class="special">=</span> <span class="identifier">const_void_pointer</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span></pre>Allocates storage from the standard-conforming allocator. </li>
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<pre class="literallayout"><span class="keyword">void</span> <a name="idp48056992-bb"></a><span class="identifier">deallocate</span><span class="special">(</span><span class="identifier">pointer</span> ptr<span class="special">,</span> <span class="identifier">size_type</span> n<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>Deallocates previously allocated memory. Never throws </p>
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<pre class="literallayout"><span class="identifier">size_type</span> <a name="idp48059936-bb"></a><span class="identifier">max_size</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>Returns the maximum number of elements that could be allocated. Never throws </p>
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<li class="listitem"><pre class="literallayout"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <a name="idp48061536-bb"></a><span class="identifier">select_on_container_copy_construction</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idp48062800-bb"></a><span class="identifier">storage_is_unpropagable</span><span class="special">(</span><span class="identifier">pointer</span> p<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li>
</ol></div>
</div>
<div class="refsect2">
<a name="idp296245568"></a><h3>
<a name="idp48095504-bb"></a><code class="computeroutput">small_vector_allocator</code> friend functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
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<pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">void</span> <a name="idp48096064-bb"></a><span class="identifier">swap</span><span class="special">(</span><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span> l<span class="special">,</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span> r<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>Swaps two allocators, does nothing because this <code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code> is stateless </p>
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<pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="idp48100336-bb"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span> l<span class="special">,</span>
<span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span> r<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>An <code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code> always compares to true, as memory allocated with one instance can be deallocated by another instance (except for unpropagable storage) </p>
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<li class="listitem">
<pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="idp48105024-bb"></a><span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span> l<span class="special">,</span>
<span class="keyword">const</span> <a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a> <span class="special">&</span> r<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
<p>An <code class="computeroutput"><a class="link" href="small_vector_allocator.html" title="Class template small_vector_allocator">small_vector_allocator</a></code> always compares to false, as memory allocated with one instance can be deallocated by another instance </p>
</li>
</ol></div>
</div>
</div>
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