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class="refentry"> <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.propagat_idm46583869815232"></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.propagat_idm46583869814048"></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.propagat_idm46583869812864"></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#idm46583869797296-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#idm46583869794608-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#idm46583869791744-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#idm46583869789040-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#idm46583869785312-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#idm46583869781744-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#idm46583869778304-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#idm46583869775008-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#idm46583869770704-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#idm46583869808480-bb">public member functions</a></span> <span class="identifier">pointer</span> <a class="link" href="small_vector_allocator.html#idm46583869807920-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#idm46583869805072-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#idm46583869802128-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#idm46583869800528-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#idm46583869799264-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#idm46583869766560-bb">friend functions</a></span> <span class="keyword">friend</span> <span class="keyword">void</span> <a class="link" href="small_vector_allocator.html#idm46583869766000-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#idm46583869761728-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#idm46583869757040-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="idm45555391755328"></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="idm45555391742576"></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="idm46583869797296-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="idm46583869794608-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="idm46583869791744-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> </li> <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 name="idm46583869789040-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> </li> <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 name="idm46583869785312-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> </li> <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="idm46583869781744-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> </li> <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="idm46583869778304-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> </li> <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="idm46583869775008-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> </li> <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="idm46583869770704-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> </li> </ol></div> </div> <div class="refsect2"> <a name="idm45555391642592"></a><h3> <a name="idm46583869808480-bb"></a><code class="computeroutput">small_vector_allocator</code> public member functions</h3> <div class="orderedlist"><ol class="orderedlist" type="1"> <li class="listitem"> <pre class="literallayout"><span class="identifier">pointer</span> <a name="idm46583869807920-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> <li class="listitem"> <pre class="literallayout"><span class="keyword">void</span> <a name="idm46583869805072-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> </li> <li class="listitem"> <pre class="literallayout"><span class="identifier">size_type</span> <a name="idm46583869802128-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> </li> <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="idm46583869800528-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="idm46583869799264-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="idm45555391607344"></a><h3> <a name="idm46583869766560-bb"></a><code class="computeroutput">small_vector_allocator</code> friend functions</h3> <div class="orderedlist"><ol class="orderedlist" type="1"> <li class="listitem"> <pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">void</span> <a name="idm46583869766000-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> </li> <li class="listitem"> <pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="idm46583869761728-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> </li> <li class="listitem"> <pre class="literallayout"><span class="keyword">friend</span> <span class="keyword">bool</span> <a name="idm46583869757040-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> </div> <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> <td align="left"></td> <td align="right"><div class="copyright-footer">Copyright © 2009-2015 Ion Gaztanaga<p> Distributed under the Boost Software License, Version 1.0. (See accompanying 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>) </p> </div></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="small_vector.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_container_header_reference.html#header.boost.container.small_vector_hpp"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="small_vector_allocator/rebind.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>