Imported Upstream version 1.72.0

[platform/upstream/boost.git] / doc / html / boost / container / allocator_traits.html

diff --git a/doc/html/boost/container/allocator_traits.html b/doc/html/boost/container/allocator_traits.html
index a395d75..9cb6778 100644 (file)
--- a/doc/html/boost/container/allocator_traits.html
+++ b/doc/html/boost/container/allocator_traits.html
@@ -45,9 +45,9 @@
   <span class="keyword">typedef</span> <span class="identifier">see_documentation</span>                     <a class="link" href="allocator_traits.html#boost.container.allocator_traits.const_void_pointer"><span class="identifier">const_void_pointer</span></a><span class="special">;</span>                    
   <span class="keyword">typedef</span> <span class="identifier">see_documentation</span>                     <a class="link" href="allocator_traits.html#boost.container.allocator_traits.difference_type"><span class="identifier">difference_type</span></a><span class="special">;</span>                       
   <span class="keyword">typedef</span> <span class="identifier">see_documentation</span>                     <a class="link" href="allocator_traits.html#boost.container.allocator_traits.size_type"><span class="identifier">size_type</span></a><span class="special">;</span>                             
-  <span class="keyword">typedef</span> <span class="identifier">see_documentation</span>                     <a class="link" href="allocator_traits.html#boost.container.allocator_traits.propagat_idm45836573382048"><span class="identifier">propagate_on_container_copy_assignment</span></a><span class="special">;</span>
-  <span class="keyword">typedef</span> <span class="identifier">see_documentation</span>                     <a class="link" href="allocator_traits.html#boost.container.allocator_traits.propagat_idm45836573380192"><span class="identifier">propagate_on_container_move_assignment</span></a><span class="special">;</span>
-  <span class="keyword">typedef</span> <span class="identifier">see_documentation</span>                     <a class="link" href="allocator_traits.html#boost.container.allocator_traits.propagat_idm45836573378336"><span class="identifier">propagate_on_container_swap</span></a><span class="special">;</span>           
+  <span class="keyword">typedef</span> <span class="identifier">see_documentation</span>                     <a class="link" href="allocator_traits.html#boost.container.allocator_traits.propagat_idm45666075028848"><span class="identifier">propagate_on_container_copy_assignment</span></a><span class="special">;</span>
+  <span class="keyword">typedef</span> <span class="identifier">see_documentation</span>                     <a class="link" href="allocator_traits.html#boost.container.allocator_traits.propagat_idm45666075026992"><span class="identifier">propagate_on_container_move_assignment</span></a><span class="special">;</span>
+  <span class="keyword">typedef</span> <span class="identifier">see_documentation</span>                     <a class="link" href="allocator_traits.html#boost.container.allocator_traits.propagat_idm45666075025136"><span class="identifier">propagate_on_container_swap</span></a><span class="special">;</span>           
   <span class="keyword">typedef</span> <span class="identifier">see_documentation</span>                     <a class="link" href="allocator_traits.html#boost.container.allocator_traits.is_always_equal"><span class="identifier">is_always_equal</span></a><span class="special">;</span>                       
   <span class="keyword">typedef</span> <span class="identifier">see_documentation</span>                     <a class="link" href="allocator_traits.html#boost.container.allocator_traits.is_partially_propagable"><span class="identifier">is_partially_propagable</span></a><span class="special">;</span>               
   <span class="keyword">typedef</span> <span class="identifier">see_documentation</span>                     <a class="link" href="allocator_traits.html#boost.container.allocator_traits.rebind_alloc"><span class="identifier">rebind_alloc</span></a><span class="special">;</span>                          
@@ -60,17 +60,17 @@
     <span class="keyword">typedef</span> <span class="identifier">see_documentation</span> <a class="link" href="allocator_traits/portable_rebind_alloc.html#boost.container.allocator_traits.portable_rebind_alloc.type"><span class="identifier">type</span></a><span class="special">;</span>
   <span class="special">}</span><span class="special">;</span>
 
-  <span class="comment">// <a class="link" href="allocator_traits.html#idm45836573365472-bb">public static functions</a></span>
-  <span class="keyword">static</span> <span class="identifier">pointer</span> <a class="link" href="allocator_traits.html#idm45836573364912-bb"><span class="identifier">allocate</span></a><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">size_type</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">static</span> <span class="keyword">void</span> <a class="link" href="allocator_traits.html#idm45836573360992-bb"><span class="identifier">deallocate</span></a><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span><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="special">;</span>
-  <span class="keyword">static</span> <span class="identifier">pointer</span> <a class="link" href="allocator_traits.html#idm45836573355696-bb"><span class="identifier">allocate</span></a><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span><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="special">;</span>
-  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">static</span> <span class="keyword">void</span> <a class="link" href="allocator_traits.html#idm45836573350608-bb"><span class="identifier">destroy</span></a><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">*</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">static</span> <span class="identifier">size_type</span> <a class="link" href="allocator_traits.html#idm45836573345088-bb"><span class="identifier">max_size</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">static</span> <span class="identifier">Allocator</span> <a class="link" href="allocator_traits.html#idm45836573341088-bb"><span class="identifier">select_on_container_copy_construction</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
+  <span class="comment">// <a class="link" href="allocator_traits.html#idm45666075012272-bb">public static functions</a></span>
+  <span class="keyword">static</span> <span class="identifier">pointer</span> <a class="link" href="allocator_traits.html#idm45666075011712-bb"><span class="identifier">allocate</span></a><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">size_type</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">static</span> <span class="keyword">void</span> <a class="link" href="allocator_traits.html#idm45666075007792-bb"><span class="identifier">deallocate</span></a><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span><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="special">;</span>
+  <span class="keyword">static</span> <span class="identifier">pointer</span> <a class="link" href="allocator_traits.html#idm45666075002496-bb"><span class="identifier">allocate</span></a><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span><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="special">;</span>
+  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">static</span> <span class="keyword">void</span> <a class="link" href="allocator_traits.html#idm45666074997408-bb"><span class="identifier">destroy</span></a><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">*</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">static</span> <span class="identifier">size_type</span> <a class="link" href="allocator_traits.html#idm45666074991888-bb"><span class="identifier">max_size</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">static</span> <span class="identifier">Allocator</span> <a class="link" href="allocator_traits.html#idm45666074987888-bb"><span class="identifier">select_on_container_copy_construction</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
   <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">class</span> <span class="special">...</span> Args<span class="special">&gt;</span> 
-    <span class="keyword">static</span> <span class="keyword">void</span> <a class="link" href="allocator_traits.html#idm45836573337776-bb"><span class="identifier">construct</span></a><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&amp;&amp;</span><span class="special">...</span><span class="special">)</span><span class="special">;</span>
-  <span class="keyword">static</span> <span class="keyword">bool</span> <a class="link" href="allocator_traits.html#idm45836573330640-bb"><span class="identifier">storage_is_unpropagable</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">pointer</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
-  <span class="keyword">static</span> <span class="keyword">bool</span> <a class="link" href="allocator_traits.html#idm45836573325952-bb"><span class="identifier">equal</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
+    <span class="keyword">static</span> <span class="keyword">void</span> <a class="link" href="allocator_traits.html#idm45666074984576-bb"><span class="identifier">construct</span></a><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">T</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">Args</span> <span class="special">&amp;&amp;</span><span class="special">...</span><span class="special">)</span><span class="special">;</span>
+  <span class="keyword">static</span> <span class="keyword">bool</span> <a class="link" href="allocator_traits.html#idm45666074977440-bb"><span class="identifier">storage_is_unpropagable</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">pointer</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span>
+  <span class="keyword">static</span> <span class="keyword">bool</span> <a class="link" href="allocator_traits.html#idm45666074972752-bb"><span class="identifier">equal</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</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="id-1.3.10.14.4.3.4"></a><h2>Description</h2>
@@ -123,17 +123,17 @@
 </li>
 <li class="listitem">
 <p>
-<span class="keyword">typedef</span> <span class="identifier">see_documentation</span> <a name="boost.container.allocator_traits.propagat_idm45836573382048"></a><span class="identifier">propagate_on_container_copy_assignment</span><span class="special">;</span></p>
+<span class="keyword">typedef</span> <span class="identifier">see_documentation</span> <a name="boost.container.allocator_traits.propagat_idm45666075028848"></a><span class="identifier">propagate_on_container_copy_assignment</span><span class="special">;</span></p>
 <p>Allocator::propagate_on_container_copy_assignment if such a type exists, otherwise a type with an internal constant static boolean member <code class="computeroutput">value</code> == false. </p>
 </li>
 <li class="listitem">
 <p>
-<span class="keyword">typedef</span> <span class="identifier">see_documentation</span> <a name="boost.container.allocator_traits.propagat_idm45836573380192"></a><span class="identifier">propagate_on_container_move_assignment</span><span class="special">;</span></p>
+<span class="keyword">typedef</span> <span class="identifier">see_documentation</span> <a name="boost.container.allocator_traits.propagat_idm45666075026992"></a><span class="identifier">propagate_on_container_move_assignment</span><span class="special">;</span></p>
 <p>Allocator::propagate_on_container_move_assignment if such a type exists, otherwise a type with an internal constant static boolean member <code class="computeroutput">value</code> == false. </p>
 </li>
 <li class="listitem">
 <p>
-<span class="keyword">typedef</span> <span class="identifier">see_documentation</span> <a name="boost.container.allocator_traits.propagat_idm45836573378336"></a><span class="identifier">propagate_on_container_swap</span><span class="special">;</span></p>
+<span class="keyword">typedef</span> <span class="identifier">see_documentation</span> <a name="boost.container.allocator_traits.propagat_idm45666075025136"></a><span class="identifier">propagate_on_container_swap</span><span class="special">;</span></p>
 <p>Allocator::propagate_on_container_swap if such a type exists, otherwise a type with an internal constant static boolean member <code class="computeroutput">value</code> == false. </p>
 </li>
 <li class="listitem">
@@ -161,44 +161,44 @@
 </div>
 <div class="refsect2">
 <a name="id-1.3.10.14.4.3.4.4"></a><h3>
-<a name="idm45836573365472-bb"></a><code class="computeroutput">allocator_traits</code> public static functions</h3>
+<a name="idm45666075012272-bb"></a><code class="computeroutput">allocator_traits</code> public static functions</h3>
 <div class="orderedlist"><ol class="orderedlist" type="1">
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">pointer</span> <a name="idm45836573364912-bb"></a><span class="identifier">allocate</span><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="identifier">size_type</span> n<span class="special">)</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">pointer</span> <a name="idm45666075011712-bb"></a><span class="identifier">allocate</span><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="identifier">size_type</span> n<span class="special">)</span><span class="special">;</span></pre>
 <p><span class="bold"><strong>Returns</strong></span>: <code class="computeroutput">a.allocate(n)</code> </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">void</span> <a name="idm45836573360992-bb"></a><span class="identifier">deallocate</span><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="identifier">pointer</span> p<span class="special">,</span> <span class="identifier">size_type</span> n<span class="special">)</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">void</span> <a name="idm45666075007792-bb"></a><span class="identifier">deallocate</span><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="identifier">pointer</span> p<span class="special">,</span> <span class="identifier">size_type</span> n<span class="special">)</span><span class="special">;</span></pre>
 <p><span class="bold"><strong>Returns</strong></span>: <code class="computeroutput">a.deallocate(p, n)</code></p>
 <p><span class="bold"><strong>Throws</strong></span>: Nothing </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">pointer</span> <a name="idm45836573355696-bb"></a><span class="identifier">allocate</span><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="identifier">size_type</span> n<span class="special">,</span> <span class="identifier">const_void_pointer</span> p<span class="special">)</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">pointer</span> <a name="idm45666075002496-bb"></a><span class="identifier">allocate</span><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="identifier">size_type</span> n<span class="special">,</span> <span class="identifier">const_void_pointer</span> p<span class="special">)</span><span class="special">;</span></pre>
 <p><span class="bold"><strong>Effects</strong></span>: calls <code class="computeroutput">a.allocate(n, p)</code> if that call is well-formed; otherwise, invokes <code class="computeroutput">a.allocate(n)</code> </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">static</span> <span class="keyword">void</span> <a name="idm45836573350608-bb"></a><span class="identifier">destroy</span><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="identifier">T</span> <span class="special">*</span> p<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="keyword">static</span> <span class="keyword">void</span> <a name="idm45666074997408-bb"></a><span class="identifier">destroy</span><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="identifier">T</span> <span class="special">*</span> p<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p><span class="bold"><strong>Effects</strong></span>: calls <code class="computeroutput">a.destroy(p)</code> if that call is well-formed; otherwise, invokes <code class="computeroutput">p-&gt;~T()</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">size_type</span> <a name="idm45836573345088-bb"></a><span class="identifier">max_size</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">size_type</span> <a name="idm45666074991888-bb"></a><span class="identifier">max_size</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p><span class="bold"><strong>Returns</strong></span>: <code class="computeroutput">a.max_size()</code> if that expression is well-formed; otherwise, <code class="computeroutput">numeric_limits&lt;size_type&gt;::max()</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">Allocator</span> <a name="idm45836573341088-bb"></a><span class="identifier">select_on_container_copy_construction</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">)</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">Allocator</span> <a name="idm45666074987888-bb"></a><span class="identifier">select_on_container_copy_construction</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">)</span><span class="special">;</span></pre>
 <p><span class="bold"><strong>Returns</strong></span>: <code class="computeroutput">a.select_on_container_copy_construction()</code> if that expression is well-formed; otherwise, a. </p>
 </li>
 <li class="listitem">
 <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">class</span> <span class="special">...</span> Args<span class="special">&gt;</span> 
-  <span class="keyword">static</span> <span class="keyword">void</span> <a name="idm45836573337776-bb"></a><span class="identifier">construct</span><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="identifier">T</span> <span class="special">*</span> p<span class="special">,</span> <span class="identifier">Args</span> <span class="special">&amp;&amp;</span><span class="special">...</span> args<span class="special">)</span><span class="special">;</span></pre>
+  <span class="keyword">static</span> <span class="keyword">void</span> <a name="idm45666074984576-bb"></a><span class="identifier">construct</span><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="identifier">T</span> <span class="special">*</span> p<span class="special">,</span> <span class="identifier">Args</span> <span class="special">&amp;&amp;</span><span class="special">...</span> args<span class="special">)</span><span class="special">;</span></pre>
 <p><span class="bold"><strong>Effects</strong></span>: calls <code class="computeroutput">a.construct(p, std::forward&lt;Args&gt;(args)...)</code> if that call is well-formed; otherwise, invokes <code class="computeroutput"><code class="computeroutput">placement new</code> (static_cast&lt;void*&gt;(p)) T(std::forward&lt;Args&gt;(args)...)</code> </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">bool</span> <a name="idm45836573330640-bb"></a><span class="identifier">storage_is_unpropagable</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="identifier">pointer</span> p<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">bool</span> <a name="idm45666074977440-bb"></a><span class="identifier">storage_is_unpropagable</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="identifier">pointer</span> p<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p><span class="bold"><strong>Returns</strong></span>: <code class="computeroutput">a.storage_is_unpropagable(p)</code> if is_partially_propagable::value is true; otherwise, <code class="computeroutput">false</code>. </p>
 </li>
 <li class="listitem">
-<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">bool</span> <a name="idm45836573325952-bb"></a><span class="identifier">equal</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span> b<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
+<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">bool</span> <a name="idm45666074972752-bb"></a><span class="identifier">equal</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span> a<span class="special">,</span> <span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&amp;</span> b<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre>
 <p><span class="bold"><strong>Returns</strong></span>: <code class="computeroutput">true</code> if <code class="computeroutput">is_always_equal::value == true</code>, otherwise, <code class="computeroutput">a == b</code>. </p>
 </li>
 </ol></div>