doc/html/boost/intrusive/unordered_multiset.html


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<a name="boost.intrusive.unordered_multiset"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle">Class template unordered_multiset</span></h2>
<p>boost::intrusive::unordered_multiset</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: &lt;<a class="link" href="../../intrusive/reference.html#header.boost.intrusive.unordered_set_hpp" title="Header &lt;boost/intrusive/unordered_set.hpp&gt;">boost/intrusive/unordered_set.hpp</a>&gt;

</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> Options<span class="special">&gt;</span> 
<span class="keyword">class</span> <a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <span class="special">:</span> <span class="keyword">public</span> boost::intrusive::hashtable&lt; ValueTraits, VoidOrKeyOfValue, VoidOrKeyHash, VoidOrKeyEqual, BucketTraits, SizeType, BoolFlags &gt;
<span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// types</span>
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">value_type</span>           <a name="boost.intrusive.unordered_multiset.value_type"></a><span class="identifier">value_type</span><span class="special">;</span>          
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">key_type</span>             <a name="boost.intrusive.unordered_multiset.key_type"></a><span class="identifier">key_type</span><span class="special">;</span>            
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">value_traits</span>         <a name="boost.intrusive.unordered_multiset.value_traits"></a><span class="identifier">value_traits</span><span class="special">;</span>        
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">bucket_traits</span>        <a name="boost.intrusive.unordered_multiset.bucket_traits"></a><span class="identifier">bucket_traits</span><span class="special">;</span>       
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">pointer</span>              <a name="boost.intrusive.unordered_multiset.pointer"></a><span class="identifier">pointer</span><span class="special">;</span>             
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">const_pointer</span>        <a name="boost.intrusive.unordered_multiset.const_pointer"></a><span class="identifier">const_pointer</span><span class="special">;</span>       
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">reference</span>            <a name="boost.intrusive.unordered_multiset.reference"></a><span class="identifier">reference</span><span class="special">;</span>           
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">const_reference</span>      <a name="boost.intrusive.unordered_multiset.const_reference"></a><span class="identifier">const_reference</span><span class="special">;</span>     
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">difference_type</span>      <a name="boost.intrusive.unordered_multiset.difference_type"></a><span class="identifier">difference_type</span><span class="special">;</span>     
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">size_type</span>            <a name="boost.intrusive.unordered_multiset.size_type"></a><span class="identifier">size_type</span><span class="special">;</span>           
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">key_equal</span>            <a name="boost.intrusive.unordered_multiset.key_equal"></a><span class="identifier">key_equal</span><span class="special">;</span>           
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">hasher</span>               <a name="boost.intrusive.unordered_multiset.hasher"></a><span class="identifier">hasher</span><span class="special">;</span>              
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">bucket_type</span>          <a name="boost.intrusive.unordered_multiset.bucket_type"></a><span class="identifier">bucket_type</span><span class="special">;</span>         
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">bucket_ptr</span>           <a name="boost.intrusive.unordered_multiset.bucket_ptr"></a><span class="identifier">bucket_ptr</span><span class="special">;</span>          
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">iterator</span>             <a name="boost.intrusive.unordered_multiset.iterator"></a><span class="identifier">iterator</span><span class="special">;</span>            
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">const_iterator</span>       <a name="boost.intrusive.unordered_multiset.const_iterator"></a><span class="identifier">const_iterator</span><span class="special">;</span>      
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">insert_commit_data</span>   <a name="boost.intrusive.unordered_multiset.insert_commit_data"></a><span class="identifier">insert_commit_data</span><span class="special">;</span>  
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">local_iterator</span>       <a name="boost.intrusive.unordered_multiset.local_iterator"></a><span class="identifier">local_iterator</span><span class="special">;</span>      
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">const_local_iterator</span> <a name="boost.intrusive.unordered_multiset.const_local_iterator"></a><span class="identifier">const_local_iterator</span><span class="special">;</span>
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">node_traits</span>          <a name="boost.intrusive.unordered_multiset.node_traits"></a><span class="identifier">node_traits</span><span class="special">;</span>         
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">node</span>                 <a name="boost.intrusive.unordered_multiset.node"></a><span class="identifier">node</span><span class="special">;</span>                
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">node_ptr</span>             <a name="boost.intrusive.unordered_multiset.node_ptr"></a><span class="identifier">node_ptr</span><span class="special">;</span>            
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">const_node_ptr</span>       <a name="boost.intrusive.unordered_multiset.const_node_ptr"></a><span class="identifier">const_node_ptr</span><span class="special">;</span>      
  <span class="keyword">typedef</span> <span class="identifier">implementation_defined</span><span class="special">::</span><span class="identifier">node_algorithms</span>      <a name="boost.intrusive.unordered_multiset.node_algorithms"></a><span class="identifier">node_algorithms</span><span class="special">;</span>     

  <span class="comment">// <a class="link" href="unordered_multiset.html#boost.intrusive.unordered_multisetconstruct-copy-destruct">construct/copy/destruct</a></span>
  <span class="keyword">explicit</span> <a class="link" href="unordered_multiset.html#idm45425350040560-bb"><span class="identifier">unordered_multiset</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">bucket_traits</span> <span class="special">&amp;</span><span class="special">,</span> 
                              <span class="keyword">const</span> <span class="identifier">hasher</span> <span class="special">&amp;</span> <span class="special">=</span> <span class="identifier">hasher</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> 
                              <span class="keyword">const</span> <span class="identifier">key_equal</span> <span class="special">&amp;</span> <span class="special">=</span> <span class="identifier">key_equal</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> 
                              <span class="keyword">const</span> <span class="identifier">value_traits</span> <span class="special">&amp;</span> <span class="special">=</span> <span class="identifier">value_traits</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iterator<span class="special">&gt;</span> 
    <a class="link" href="unordered_multiset.html#idm45425350030944-bb"><span class="identifier">unordered_multiset</span></a><span class="special">(</span><span class="identifier">Iterator</span><span class="special">,</span> <span class="identifier">Iterator</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">bucket_traits</span> <span class="special">&amp;</span><span class="special">,</span> 
                       <span class="keyword">const</span> <span class="identifier">hasher</span> <span class="special">&amp;</span> <span class="special">=</span> <span class="identifier">hasher</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> 
                       <span class="keyword">const</span> <span class="identifier">key_equal</span> <span class="special">&amp;</span> <span class="special">=</span> <span class="identifier">key_equal</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> 
                       <span class="keyword">const</span> <span class="identifier">value_traits</span> <span class="special">&amp;</span> <span class="special">=</span> <span class="identifier">value_traits</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span>
  <a class="link" href="unordered_multiset.html#idm45425350019968-bb"><span class="identifier">unordered_multiset</span></a><span class="special">(</span><a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <span class="special">&amp;&amp;</span><span class="special">)</span><span class="special">;</span>
  <a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <span class="special">&amp;</span> <a class="link" href="unordered_multiset.html#idm45425350017728-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <span class="special">&amp;&amp;</span><span class="special">)</span><span class="special">;</span>
  <a class="link" href="unordered_multiset.html#idm45425350014912-bb"><span class="special">~</span><span class="identifier">unordered_multiset</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="unordered_multiset.html#idm45425350408784-bb">public member functions</a></span>
  <span class="identifier">iterator</span> <a class="link" href="unordered_multiset.html#idm45425350408224-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">const_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350403152-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">const_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350397792-bb"><span class="identifier">cbegin</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">iterator</span> <a class="link" href="unordered_multiset.html#idm45425350392432-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">const_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350388144-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">const_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350383584-bb"><span class="identifier">cend</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">hasher</span> <a class="link" href="unordered_multiset.html#idm45425350379024-bb"><span class="identifier">hash_function</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">key_equal</span> <a class="link" href="unordered_multiset.html#idm45425350374448-bb"><span class="identifier">key_eq</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="unordered_multiset.html#idm45425350369856-bb"><span class="identifier">empty</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425350365168-bb"><span class="identifier">size</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="unordered_multiset.html#idm45425350359824-bb"><span class="identifier">swap</span></a><span class="special">(</span><a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <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> Cloner<span class="special">,</span> <span class="keyword">typename</span> Disposer<span class="special">&gt;</span> 
    <span class="keyword">void</span> <a class="link" href="unordered_multiset.html#idm45425350352560-bb"><span class="identifier">clone_from</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Cloner</span><span class="special">,</span> <span class="identifier">Disposer</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Cloner<span class="special">,</span> <span class="keyword">typename</span> Disposer<span class="special">&gt;</span> 
    <span class="keyword">void</span> <a class="link" href="unordered_multiset.html#idm45425350342336-bb"><span class="identifier">clone_from</span></a><span class="special">(</span><a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <span class="special">&amp;&amp;</span><span class="special">,</span> <span class="identifier">Cloner</span><span class="special">,</span> <span class="identifier">Disposer</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">iterator</span> <a class="link" href="unordered_multiset.html#idm45425350332288-bb"><span class="identifier">insert</span></a><span class="special">(</span><span class="identifier">reference</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iterator<span class="special">&gt;</span> <span class="keyword">void</span> <a class="link" href="unordered_multiset.html#idm45425350324576-bb"><span class="identifier">insert</span></a><span class="special">(</span><span class="identifier">Iterator</span><span class="special">,</span> <span class="identifier">Iterator</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="unordered_multiset.html#idm45425350316832-bb"><span class="identifier">erase</span></a><span class="special">(</span><span class="identifier">const_iterator</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="unordered_multiset.html#idm45425350311648-bb"><span class="identifier">erase</span></a><span class="special">(</span><span class="identifier">const_iterator</span><span class="special">,</span> <span class="identifier">const_iterator</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425350305728-bb"><span class="identifier">erase</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</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> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">&gt;</span> 
    <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425350299568-bb"><span class="identifier">erase</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">KeyHasher</span><span class="special">,</span> <span class="identifier">KeyEqual</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Disposer<span class="special">&gt;</span> <span class="keyword">void</span> <a class="link" href="unordered_multiset.html#idm45425350288608-bb"><span class="identifier">erase_and_dispose</span></a><span class="special">(</span><span class="identifier">const_iterator</span><span class="special">,</span> <span class="identifier">Disposer</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Disposer<span class="special">&gt;</span> 
    <span class="keyword">void</span> <a class="link" href="unordered_multiset.html#idm45425350280992-bb"><span class="identifier">erase_and_dispose</span></a><span class="special">(</span><span class="identifier">const_iterator</span><span class="special">,</span> <span class="identifier">const_iterator</span><span class="special">,</span> <span class="identifier">Disposer</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Disposer<span class="special">&gt;</span> 
    <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425350272656-bb"><span class="identifier">erase_and_dispose</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Disposer</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">,</span> 
           <span class="keyword">typename</span> Disposer<span class="special">&gt;</span> 
    <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425350264016-bb"><span class="identifier">erase_and_dispose</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">KeyHasher</span><span class="special">,</span> <span class="identifier">KeyEqual</span><span class="special">,</span> 
                                <span class="identifier">Disposer</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="unordered_multiset.html#idm45425350252368-bb"><span class="identifier">clear</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Disposer<span class="special">&gt;</span> <span class="keyword">void</span> <a class="link" href="unordered_multiset.html#idm45425350247776-bb"><span class="identifier">clear_and_dispose</span></a><span class="special">(</span><span class="identifier">Disposer</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425350240784-bb"><span class="identifier">count</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">&gt;</span> 
    <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425350236176-bb"><span class="identifier">count</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">KeyHasher</span><span class="special">,</span> <span class="identifier">KeyEqual</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">iterator</span> <a class="link" href="unordered_multiset.html#idm45425350226800-bb"><span class="identifier">find</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</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> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">&gt;</span> 
    <span class="identifier">iterator</span> <a class="link" href="unordered_multiset.html#idm45425350222432-bb"><span class="identifier">find</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">KeyHasher</span><span class="special">,</span> <span class="identifier">KeyEqual</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">const_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350212240-bb"><span class="identifier">find</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">&gt;</span> 
    <span class="identifier">const_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350207632-bb"><span class="identifier">find</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">KeyHasher</span><span class="special">,</span> <span class="identifier">KeyEqual</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">iterator</span><span class="special">,</span> <span class="identifier">iterator</span> <span class="special">&gt;</span> <a class="link" href="unordered_multiset.html#idm45425350197168-bb"><span class="identifier">equal_range</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</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> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">&gt;</span> 
    <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">iterator</span><span class="special">,</span> <span class="identifier">iterator</span> <span class="special">&gt;</span> 
    <a class="link" href="unordered_multiset.html#idm45425350192720-bb"><span class="identifier">equal_range</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">KeyHasher</span><span class="special">,</span> <span class="identifier">KeyEqual</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">const_iterator</span><span class="special">,</span> <span class="identifier">const_iterator</span> <span class="special">&gt;</span> 
  <a class="link" href="unordered_multiset.html#idm45425350182480-bb"><span class="identifier">equal_range</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">&gt;</span> 
    <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">const_iterator</span><span class="special">,</span> <span class="identifier">const_iterator</span> <span class="special">&gt;</span> 
    <a class="link" href="unordered_multiset.html#idm45425350177744-bb"><span class="identifier">equal_range</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">KeyHasher</span><span class="special">,</span> <span class="identifier">KeyEqual</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">iterator</span> <a class="link" href="unordered_multiset.html#idm45425350167216-bb"><span class="identifier">iterator_to</span></a><span class="special">(</span><span class="identifier">reference</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">const_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350160528-bb"><span class="identifier">iterator_to</span></a><span class="special">(</span><span class="identifier">const_reference</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">local_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350153568-bb"><span class="identifier">local_iterator_to</span></a><span class="special">(</span><span class="identifier">reference</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">const_local_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350146912-bb"><span class="identifier">local_iterator_to</span></a><span class="special">(</span><span class="identifier">const_reference</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425350139984-bb"><span class="identifier">bucket_count</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425350136128-bb"><span class="identifier">bucket_size</span></a><span class="special">(</span><span class="identifier">size_type</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425350130736-bb"><span class="identifier">bucket</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">&gt;</span> 
    <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425350125232-bb"><span class="identifier">bucket</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">KeyHasher</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">bucket_ptr</span> <a class="link" href="unordered_multiset.html#idm45425350116640-bb"><span class="identifier">bucket_pointer</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">local_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350112768-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="identifier">size_type</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">const_local_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350106672-bb"><span class="identifier">begin</span></a><span class="special">(</span><span class="identifier">size_type</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">const_local_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350100304-bb"><span class="identifier">cbegin</span></a><span class="special">(</span><span class="identifier">size_type</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">local_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350093936-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="identifier">size_type</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">const_local_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350087856-bb"><span class="identifier">end</span></a><span class="special">(</span><span class="identifier">size_type</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="identifier">const_local_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350081488-bb"><span class="identifier">cend</span></a><span class="special">(</span><span class="identifier">size_type</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="unordered_multiset.html#idm45425350075120-bb"><span class="identifier">rehash</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">bucket_traits</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">void</span> <a class="link" href="unordered_multiset.html#idm45425350065472-bb"><span class="identifier">full_rehash</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">bool</span> <a class="link" href="unordered_multiset.html#idm45425350058064-bb"><span class="identifier">incremental_rehash</span></a><span class="special">(</span><span class="keyword">bool</span> <span class="special">=</span> <span class="keyword">true</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">bool</span> <a class="link" href="unordered_multiset.html#idm45425350051808-bb"><span class="identifier">incremental_rehash</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">bucket_traits</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425350045392-bb"><span class="identifier">split_count</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="unordered_multiset.html#idm45425350010336-bb">public static functions</a></span>
  <span class="keyword">static</span> <span class="identifier">local_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350009776-bb"><span class="identifier">s_local_iterator_to</span></a><span class="special">(</span><span class="identifier">reference</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">static</span> <span class="identifier">const_local_iterator</span> <a class="link" href="unordered_multiset.html#idm45425350001520-bb"><span class="identifier">s_local_iterator_to</span></a><span class="special">(</span><span class="identifier">const_reference</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">static</span> <span class="identifier">size_type</span> <a class="link" href="unordered_multiset.html#idm45425349993264-bb"><span class="identifier">suggested_upper_bucket_count</span></a><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">size_type</span> <a class="link" href="unordered_multiset.html#idm45425349988480-bb"><span class="identifier">suggested_lower_bucket_count</span></a><span class="special">(</span><span class="identifier">size_type</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idm45927937013616"></a><h2>Description</h2>
<p>The class template <a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> is an intrusive container, that mimics most of the interface of std::tr1::unordered_multiset as described in the C++ TR1.</p>
<p><a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> is a semi-intrusive container: each object to be stored in the container must contain a proper hook, but the container also needs additional auxiliary memory to work: <a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> needs a pointer to an array of type <code class="computeroutput">bucket_type</code> to be passed in the constructor. This bucket array must have at least the same lifetime as the container. This makes the use of <a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> more complicated than purely intrusive containers. <code class="computeroutput">bucket_type</code> is default-constructible, copyable and assignable</p>
<p>The template parameter <code class="computeroutput">T</code> is the type to be managed by the container. The user can specify additional options and if no options are provided default options are used.</p>
<p>The container supports the following options: <code class="computeroutput">base_hook&lt;&gt;/member_hook&lt;&gt;/value_traits&lt;&gt;</code>, <code class="computeroutput">constant_time_size&lt;&gt;</code>, <code class="computeroutput">size_type&lt;&gt;</code>, <code class="computeroutput">hash&lt;&gt;</code> and <code class="computeroutput">equal&lt;&gt;</code> <code class="computeroutput">bucket_traits&lt;&gt;</code>, <code class="computeroutput">power_2_buckets&lt;&gt;</code> and <code class="computeroutput">cache_begin&lt;&gt;</code>.</p>
<p><a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> only provides forward iterators but it provides 4 iterator types: iterator and const_iterator to navigate through the whole container and local_iterator and const_local_iterator to navigate through the values stored in a single bucket. Local iterators are faster and smaller.</p>
<p>It's not recommended to use non constant-time size unordered_multisets because several key functions, like "empty()", become non-constant time functions. Non constant-time size unordered_multisets are mainly provided to support auto-unlink hooks.</p>
<p><a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a>, unlike std::unordered_set, does not make automatic rehashings nor offers functions related to a load factor. Rehashing can be explicitly requested and the user must provide a new bucket array that will be used from that moment.</p>
<p>Since no automatic rehashing is done, iterators are never invalidated when inserting or erasing elements. Iterators are only invalidated when rehasing. </p>
<div class="refsect2">
<a name="idm45927936996880"></a><h3>
<a name="boost.intrusive.unordered_multisetconstruct-copy-destruct"></a><code class="computeroutput">unordered_multiset</code> 
        public
       construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">explicit</span> <a name="idm45425350040560-bb"></a><span class="identifier">unordered_multiset</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">bucket_traits</span> <span class="special">&amp;</span> b_traits<span class="special">,</span> 
                            <span class="keyword">const</span> <span class="identifier">hasher</span> <span class="special">&amp;</span> hash_func <span class="special">=</span> <span class="identifier">hasher</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> 
                            <span class="keyword">const</span> <span class="identifier">key_equal</span> <span class="special">&amp;</span> equal_func <span class="special">=</span> <span class="identifier">key_equal</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> 
                            <span class="keyword">const</span> <span class="identifier">value_traits</span> <span class="special">&amp;</span> v_traits <span class="special">=</span> <span class="identifier">value_traits</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: buckets must not be being used by any other resource.</p>
<p><span class="bold"><strong>Effects</strong></span>: Constructs an empty <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>, storing a reference to the bucket array and copies of the key_hasher and equal_func functors.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: If value_traits::node_traits::node constructor throws (this does not happen with predefined Boost.Intrusive hooks) or the copy constructor or invocation of hash_func or equal_func throws.</p>
<p><span class="bold"><strong>Notes</strong></span>: buckets array must be disposed only after *this is disposed. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iterator<span class="special">&gt;</span> 
  <a name="idm45425350030944-bb"></a><span class="identifier">unordered_multiset</span><span class="special">(</span><span class="identifier">Iterator</span> b<span class="special">,</span> <span class="identifier">Iterator</span> e<span class="special">,</span> <span class="keyword">const</span> <span class="identifier">bucket_traits</span> <span class="special">&amp;</span> b_traits<span class="special">,</span> 
                     <span class="keyword">const</span> <span class="identifier">hasher</span> <span class="special">&amp;</span> hash_func <span class="special">=</span> <span class="identifier">hasher</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> 
                     <span class="keyword">const</span> <span class="identifier">key_equal</span> <span class="special">&amp;</span> equal_func <span class="special">=</span> <span class="identifier">key_equal</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> 
                     <span class="keyword">const</span> <span class="identifier">value_traits</span> <span class="special">&amp;</span> v_traits <span class="special">=</span> <span class="identifier">value_traits</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: buckets must not be being used by any other resource and dereferencing iterator must yield an lvalue of type value_type.</p>
<p><span class="bold"><strong>Effects</strong></span>: Constructs an empty container and inserts elements from [b, e).</p>
<p><span class="bold"><strong>Complexity</strong></span>: If N is distance(b, e): Average case is O(N) (with a good hash function and with buckets_len &gt;= N),worst case O(N^2).</p>
<p><span class="bold"><strong>Throws</strong></span>: If value_traits::node_traits::node constructor throws (this does not happen with predefined Boost.Intrusive hooks) or the copy constructor or invocation of hasher or key_equal throws.</p>
<p><span class="bold"><strong>Notes</strong></span>: buckets array must be disposed only after *this is disposed. </p>
</li>
<li class="listitem">
<pre class="literallayout"><a name="idm45425350019968-bb"></a><span class="identifier">unordered_multiset</span><span class="special">(</span><a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <span class="special">&amp;&amp;</span> x<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: to-do </p>
</li>
<li class="listitem">
<pre class="literallayout"><a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <span class="special">&amp;</span> <a name="idm45425350017728-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <span class="special">&amp;&amp;</span> x<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: to-do </p>
</li>
<li class="listitem">
<pre class="literallayout"><a name="idm45425350014912-bb"></a><span class="special">~</span><span class="identifier">unordered_multiset</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Detaches all elements from this. The objects in the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> are not deleted (i.e. no destructors are called).</p>
<p><span class="bold"><strong>Complexity</strong></span>: Linear to the number of elements in the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>, if it's a safe-mode or auto-unlink value. Otherwise constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="idm45927936913296"></a><h3>
<a name="idm45425350408784-bb"></a><code class="computeroutput">unordered_multiset</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="identifier">iterator</span> <a name="idm45425350408224-bb"></a><span class="identifier">begin</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns an iterator pointing to the beginning of the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Amortized constant time. Worst case (empty <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>): O(this-&gt;bucket_count())</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">const_iterator</span> <a name="idm45425350403152-bb"></a><span class="identifier">begin</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns a const_iterator pointing to the beginning of the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Amortized constant time. Worst case (empty <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>): O(this-&gt;bucket_count())</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">const_iterator</span> <a name="idm45425350397792-bb"></a><span class="identifier">cbegin</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns a const_iterator pointing to the beginning of the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Amortized constant time. Worst case (empty <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>): O(this-&gt;bucket_count())</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">iterator</span> <a name="idm45425350392432-bb"></a><span class="identifier">end</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns an iterator pointing to the end of the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">const_iterator</span> <a name="idm45425350388144-bb"></a><span class="identifier">end</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns a const_iterator pointing to the end of the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">const_iterator</span> <a name="idm45425350383584-bb"></a><span class="identifier">cend</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns a const_iterator pointing to the end of the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">hasher</span> <a name="idm45425350379024-bb"></a><span class="identifier">hash_function</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns the hasher object used by the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: If hasher copy-constructor throws. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">key_equal</span> <a name="idm45425350374448-bb"></a><span class="identifier">key_eq</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns the key_equal object used by the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: If key_equal copy-constructor throws. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">bool</span> <a name="idm45425350369856-bb"></a><span class="identifier">empty</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns true if the container is empty.</p>
<p><span class="bold"><strong>Complexity</strong></span>: if constant-time size and <code class="computeroutput"><a class="link" href="cache_begin.html" title="Struct template cache_begin">cache_begin</a></code> options are disabled, average constant time (worst case, with empty() == true: O(this-&gt;bucket_count()). Otherwise constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">size_type</span> <a name="idm45425350365168-bb"></a><span class="identifier">size</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns the number of elements stored in the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Linear to elements contained in *this if <code class="computeroutput"><a class="link" href="constant_time_size.html" title="Struct template constant_time_size">constant_time_size</a></code> is false. Constant-time otherwise.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idm45425350359824-bb"></a><span class="identifier">swap</span><span class="special">(</span><a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <span class="special">&amp;</span> other<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: buckets must not be being used by any other resource.</p>
<p><span class="bold"><strong>Effects</strong></span>: Constructs an empty <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>, storing a reference to the bucket array and copies of the key_hasher and equal_func functors.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: If value_traits::node_traits::node constructor throws (this does not happen with predefined Boost.Intrusive hooks) or the copy constructor or invocation of hash_func or equal_func throws.</p>
<p><span class="bold"><strong>Notes</strong></span>: buckets array must be disposed only after *this is disposed. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Cloner<span class="special">,</span> <span class="keyword">typename</span> Disposer<span class="special">&gt;</span> 
  <span class="keyword">void</span> <a name="idm45425350352560-bb"></a><span class="identifier">clone_from</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <span class="special">&amp;</span> src<span class="special">,</span> <span class="identifier">Cloner</span> cloner<span class="special">,</span> 
                  <span class="identifier">Disposer</span> disposer<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: Disposer::operator()(pointer) shouldn't throw Cloner should yield to nodes that compare equal and produce the same hash than the original node.</p>
<p><span class="bold"><strong>Effects</strong></span>: Erases all the elements from *this calling Disposer::operator()(pointer), clones all the elements from src calling Cloner::operator()(const_reference ) and inserts them on *this. The hash function and the equality predicate are copied from the source.</p>
<p>If <code class="computeroutput"><a class="link" href="store_hash.html" title="Struct template store_hash">store_hash</a></code> option is true, this method does not use the hash function.</p>
<p>If any operation throws, all cloned elements are unlinked and disposed calling Disposer::operator()(pointer).</p>
<p><span class="bold"><strong>Complexity</strong></span>: Linear to erased plus inserted elements.</p>
<p><span class="bold"><strong>Throws</strong></span>: If cloner or hasher throw or hash or equality predicate copying throws. Basic guarantee. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Cloner<span class="special">,</span> <span class="keyword">typename</span> Disposer<span class="special">&gt;</span> 
  <span class="keyword">void</span> <a name="idm45425350342336-bb"></a><span class="identifier">clone_from</span><span class="special">(</span><a class="link" href="unordered_multiset.html" title="Class template unordered_multiset">unordered_multiset</a> <span class="special">&amp;&amp;</span> src<span class="special">,</span> <span class="identifier">Cloner</span> cloner<span class="special">,</span> <span class="identifier">Disposer</span> disposer<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: Disposer::operator()(pointer) shouldn't throw Cloner should yield to nodes that compare equal and produce the same hash than the original node.</p>
<p><span class="bold"><strong>Effects</strong></span>: Erases all the elements from *this calling Disposer::operator()(pointer), clones all the elements from src calling Cloner::operator()(reference) and inserts them on *this. The hash function and the equality predicate are copied from the source.</p>
<p>If <code class="computeroutput"><a class="link" href="store_hash.html" title="Struct template store_hash">store_hash</a></code> option is true, this method does not use the hash function.</p>
<p>If any operation throws, all cloned elements are unlinked and disposed calling Disposer::operator()(pointer).</p>
<p><span class="bold"><strong>Complexity</strong></span>: Linear to erased plus inserted elements.</p>
<p><span class="bold"><strong>Throws</strong></span>: If cloner or hasher throw or hash or equality predicate copying throws. Basic guarantee. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">iterator</span> <a name="idm45425350332288-bb"></a><span class="identifier">insert</span><span class="special">(</span><span class="identifier">reference</span> value<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: value must be an lvalue</p>
<p><span class="bold"><strong>Effects</strong></span>: Inserts the value into the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code>.</p>
<p><span class="bold"><strong>Returns</strong></span>: An iterator to the inserted value.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(1), worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If the internal hasher or the equality functor throws. Strong guarantee.</p>
<p><span class="bold"><strong>Note</strong></span>: Does not affect the validity of iterators and references. No copy-constructors are called. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iterator<span class="special">&gt;</span> <span class="keyword">void</span> <a name="idm45425350324576-bb"></a><span class="identifier">insert</span><span class="special">(</span><span class="identifier">Iterator</span> b<span class="special">,</span> <span class="identifier">Iterator</span> e<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: Dereferencing iterator must yield an lvalue of type value_type.</p>
<p><span class="bold"><strong>Effects</strong></span>: Equivalent to this-&gt;insert_equal(t) for each element in [b, e).</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(N), where N is distance(b, e). Worst case O(N*this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If the internal hasher or the equality functor throws. Basic guarantee.</p>
<p><span class="bold"><strong>Note</strong></span>: Does not affect the validity of iterators and references. No copy-constructors are called. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idm45425350316832-bb"></a><span class="identifier">erase</span><span class="special">(</span><span class="identifier">const_iterator</span> i<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Erases the element pointed to by i.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(1), worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: Invalidates the iterators (but not the references) to the erased element. No destructors are called. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idm45425350311648-bb"></a><span class="identifier">erase</span><span class="special">(</span><span class="identifier">const_iterator</span> b<span class="special">,</span> <span class="identifier">const_iterator</span> e<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Erases the range pointed to by b end e.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(distance(b, e)), worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: Invalidates the iterators (but not the references) to the erased elements. No destructors are called. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">size_type</span> <a name="idm45425350305728-bb"></a><span class="identifier">erase</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span> key<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Erases all the elements with the given value.</p>
<p><span class="bold"><strong>Returns</strong></span>: The number of erased elements.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(this-&gt;count(value)). Worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If the internal hasher or the equality functor throws. Basic guarantee.</p>
<p><span class="bold"><strong>Note</strong></span>: Invalidates the iterators (but not the references) to the erased elements. No destructors are called. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">&gt;</span> 
  <span class="identifier">size_type</span> <a name="idm45425350299568-bb"></a><span class="identifier">erase</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span> key<span class="special">,</span> <span class="identifier">KeyHasher</span> hash_func<span class="special">,</span> 
                  <span class="identifier">KeyEqual</span> equal_func<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: "hash_func" must be a hash function that induces the same hash values as the stored hasher. The difference is that "hash_func" hashes the given key instead of the value_type.</p>
<p>"equal_func" must be a equality function that induces the same equality as key_equal. The difference is that "equal_func" compares an arbitrary key with the contained values.</p>
<p><span class="bold"><strong>Effects</strong></span>: Erases all the elements that have the same hash and compare equal with the given key.</p>
<p><span class="bold"><strong>Returns</strong></span>: The number of erased elements.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(this-&gt;count(value)). Worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If hash_func or equal_func throw. Basic guarantee.</p>
<p><span class="bold"><strong>Note</strong></span>: Invalidates the iterators (but not the references) to the erased elements. No destructors are called. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Disposer<span class="special">&gt;</span> 
  <span class="keyword">void</span> <a name="idm45425350288608-bb"></a><span class="identifier">erase_and_dispose</span><span class="special">(</span><span class="identifier">const_iterator</span> i<span class="special">,</span> <span class="identifier">Disposer</span> disposer<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: Disposer::operator()(pointer) shouldn't throw.</p>
<p><span class="bold"><strong>Effects</strong></span>: Erases the element pointed to by i. Disposer::operator()(pointer) is called for the removed element.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(1), worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: Invalidates the iterators to the erased elements. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Disposer<span class="special">&gt;</span> 
  <span class="keyword">void</span> <a name="idm45425350280992-bb"></a><span class="identifier">erase_and_dispose</span><span class="special">(</span><span class="identifier">const_iterator</span> b<span class="special">,</span> <span class="identifier">const_iterator</span> e<span class="special">,</span> 
                         <span class="identifier">Disposer</span> disposer<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: Disposer::operator()(pointer) shouldn't throw.</p>
<p><span class="bold"><strong>Effects</strong></span>: Erases the range pointed to by b end e. Disposer::operator()(pointer) is called for the removed elements.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(distance(b, e)), worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: Invalidates the iterators to the erased elements. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Disposer<span class="special">&gt;</span> 
  <span class="identifier">size_type</span> <a name="idm45425350272656-bb"></a><span class="identifier">erase_and_dispose</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span> key<span class="special">,</span> <span class="identifier">Disposer</span> disposer<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: Disposer::operator()(pointer) shouldn't throw.</p>
<p><span class="bold"><strong>Effects</strong></span>: Erases all the elements with the given value. Disposer::operator()(pointer) is called for the removed elements.</p>
<p><span class="bold"><strong>Returns</strong></span>: The number of erased elements.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(this-&gt;count(value)). Worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If the internal hasher or the equality functor throws. Basic guarantee.</p>
<p><span class="bold"><strong>Note</strong></span>: Invalidates the iterators (but not the references) to the erased elements. No destructors are called. </p>
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<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">,</span> 
         <span class="keyword">typename</span> Disposer<span class="special">&gt;</span> 
  <span class="identifier">size_type</span> <a name="idm45425350264016-bb"></a><span class="identifier">erase_and_dispose</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span> key<span class="special">,</span> <span class="identifier">KeyHasher</span> hash_func<span class="special">,</span> 
                              <span class="identifier">KeyEqual</span> equal_func<span class="special">,</span> <span class="identifier">Disposer</span> disposer<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: Disposer::operator()(pointer) shouldn't throw.</p>
<p><span class="bold"><strong>Effects</strong></span>: Erases all the elements with the given key. according to the comparison functor "equal_func". Disposer::operator()(pointer) is called for the removed elements.</p>
<p><span class="bold"><strong>Returns</strong></span>: The number of erased elements.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(this-&gt;count(value)). Worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If hash_func or equal_func throw. Basic guarantee.</p>
<p><span class="bold"><strong>Note</strong></span>: Invalidates the iterators to the erased elements. </p>
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<pre class="literallayout"><span class="keyword">void</span> <a name="idm45425350252368-bb"></a><span class="identifier">clear</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Erases all of the elements.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Linear to the number of elements on the container. if it's a safe-mode or auto-unlink value_type. Constant time otherwise.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: Invalidates the iterators (but not the references) to the erased elements. No destructors are called. </p>
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<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Disposer<span class="special">&gt;</span> <span class="keyword">void</span> <a name="idm45425350247776-bb"></a><span class="identifier">clear_and_dispose</span><span class="special">(</span><span class="identifier">Disposer</span> disposer<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: Disposer::operator()(pointer) shouldn't throw.</p>
<p><span class="bold"><strong>Effects</strong></span>: Erases all of the elements.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Linear to the number of elements on the container. Disposer::operator()(pointer) is called for the removed elements.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: Invalidates the iterators (but not the references) to the erased elements. No destructors are called. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">size_type</span> <a name="idm45425350240784-bb"></a><span class="identifier">count</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span> key<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns the number of contained elements with the given value</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(1), worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If the internal hasher or the equality functor throws. </p>
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<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">&gt;</span> 
  <span class="identifier">size_type</span> <a name="idm45425350236176-bb"></a><span class="identifier">count</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span> key<span class="special">,</span> <span class="identifier">KeyHasher</span> hash_func<span class="special">,</span> 
                  <span class="identifier">KeyEqual</span> equal_func<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: "hash_func" must be a hash function that induces the same hash values as the stored hasher. The difference is that "hash_func" hashes the given key instead of the value_type.</p>
<p>"equal_func" must be a equality function that induces the same equality as key_equal. The difference is that "equal_func" compares an arbitrary key with the contained values.</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns the number of contained elements with the given key</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(1), worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If hash_func or equal throw. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">iterator</span> <a name="idm45425350226800-bb"></a><span class="identifier">find</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span> key<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Finds an iterator to the first element is equal to "value" or end() if that element does not exist.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(1), worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If the internal hasher or the equality functor throws. </p>
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<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">&gt;</span> 
  <span class="identifier">iterator</span> <a name="idm45425350222432-bb"></a><span class="identifier">find</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span> key<span class="special">,</span> <span class="identifier">KeyHasher</span> hash_func<span class="special">,</span> <span class="identifier">KeyEqual</span> equal_func<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: "hash_func" must be a hash function that induces the same hash values as the stored hasher. The difference is that "hash_func" hashes the given key instead of the value_type.</p>
<p>"equal_func" must be a equality function that induces the same equality as key_equal. The difference is that "equal_func" compares an arbitrary key with the contained values.</p>
<p><span class="bold"><strong>Effects</strong></span>: Finds an iterator to the first element whose key is "key" according to the given hash and equality functor or end() if that element does not exist.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(1), worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If hash_func or equal_func throw.</p>
<p><span class="bold"><strong>Note</strong></span>: This function is used when constructing a value_type is expensive and the value_type can be compared with a cheaper key type. Usually this key is part of the value_type. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">const_iterator</span> <a name="idm45425350212240-bb"></a><span class="identifier">find</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span> key<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns the number of contained elements with the given value</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(1), worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If the internal hasher or the equality functor throws. </p>
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<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">&gt;</span> 
  <span class="identifier">const_iterator</span> 
  <a name="idm45425350207632-bb"></a><span class="identifier">find</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span> key<span class="special">,</span> <span class="identifier">KeyHasher</span> hash_func<span class="special">,</span> <span class="identifier">KeyEqual</span> equal_func<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: "hash_func" must be a hash function that induces the same hash values as the stored hasher. The difference is that "hash_func" hashes the given key instead of the value_type.</p>
<p>"equal_func" must be a equality function that induces the same equality as key_equal. The difference is that "equal_func" compares an arbitrary key with the contained values.</p>
<p><span class="bold"><strong>Effects</strong></span>: Finds an iterator to the first element whose key is "key" according to the given hasher and equality functor or end() if that element does not exist.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(1), worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If hash_func or equal_func throw.</p>
<p><span class="bold"><strong>Note</strong></span>: This function is used when constructing a value_type is expensive and the value_type can be compared with a cheaper key type. Usually this key is part of the value_type. </p>
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<pre class="literallayout"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">iterator</span><span class="special">,</span> <span class="identifier">iterator</span> <span class="special">&gt;</span> <a name="idm45425350197168-bb"></a><span class="identifier">equal_range</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span> key<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns a range containing all elements with values equivalent to value. Returns std::make_pair(this-&gt;end(), this-&gt;end()) if no such elements exist.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(this-&gt;count(value)). Worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If the internal hasher or the equality functor throws. </p>
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<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">&gt;</span> 
  <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">iterator</span><span class="special">,</span> <span class="identifier">iterator</span> <span class="special">&gt;</span> 
  <a name="idm45425350192720-bb"></a><span class="identifier">equal_range</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span> key<span class="special">,</span> <span class="identifier">KeyHasher</span> hash_func<span class="special">,</span> <span class="identifier">KeyEqual</span> equal_func<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: "hash_func" must be a hash function that induces the same hash values as the stored hasher. The difference is that "hash_func" hashes the given key instead of the value_type.</p>
<p>"equal_func" must be a equality function that induces the same equality as key_equal. The difference is that "equal_func" compares an arbitrary key with the contained values.</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns a range containing all elements with equivalent keys. Returns std::make_pair(this-&gt;end(), this-&gt;end()) if no such elements exist.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(this-&gt;count(key, hash_func, equal_func)). Worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If hash_func or the equal_func throw.</p>
<p><span class="bold"><strong>Note</strong></span>: This function is used when constructing a value_type is expensive and the value_type can be compared with a cheaper key type. Usually this key is part of the value_type. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">const_iterator</span><span class="special">,</span> <span class="identifier">const_iterator</span> <span class="special">&gt;</span> 
<a name="idm45425350182480-bb"></a><span class="identifier">equal_range</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span> key<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns a range containing all elements with values equivalent to value. Returns std::make_pair(this-&gt;end(), this-&gt;end()) if no such elements exist.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(this-&gt;count(value)). Worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If the internal hasher or the equality functor throws. </p>
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<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">,</span> <span class="keyword">typename</span> KeyEqual<span class="special">&gt;</span> 
  <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span> <span class="identifier">const_iterator</span><span class="special">,</span> <span class="identifier">const_iterator</span> <span class="special">&gt;</span> 
  <a name="idm45425350177744-bb"></a><span class="identifier">equal_range</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span> key<span class="special">,</span> <span class="identifier">KeyHasher</span> hash_func<span class="special">,</span> <span class="identifier">KeyEqual</span> equal_func<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: "hash_func" must be a hash function that induces the same hash values as the stored hasher. The difference is that "hash_func" hashes the given key instead of the value_type.</p>
<p>"equal_func" must be a equality function that induces the same equality as key_equal. The difference is that "equal_func" compares an arbitrary key with the contained values.</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns a range containing all elements with equivalent keys. Returns std::make_pair(this-&gt;end(), this-&gt;end()) if no such elements exist.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case O(this-&gt;count(key, hash_func, equal_func)). Worst case O(this-&gt;size()).</p>
<p><span class="bold"><strong>Throws</strong></span>: If the hasher or equal_func throw.</p>
<p><span class="bold"><strong>Note</strong></span>: This function is used when constructing a value_type is expensive and the value_type can be compared with a cheaper key type. Usually this key is part of the value_type. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">iterator</span> <a name="idm45425350167216-bb"></a><span class="identifier">iterator_to</span><span class="special">(</span><span class="identifier">reference</span> value<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: value must be an lvalue and shall be in a <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> of appropriate type. Otherwise the behavior is undefined.</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns: a valid iterator belonging to the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> that points to the value</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: If the internal hash function throws. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">const_iterator</span> <a name="idm45425350160528-bb"></a><span class="identifier">iterator_to</span><span class="special">(</span><span class="identifier">const_reference</span> value<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: value must be an lvalue and shall be in a <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> of appropriate type. Otherwise the behavior is undefined.</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns: a valid const_iterator belonging to the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> that points to the value</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: If the internal hash function throws. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">local_iterator</span> <a name="idm45425350153568-bb"></a><span class="identifier">local_iterator_to</span><span class="special">(</span><span class="identifier">reference</span> value<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: value must be an lvalue and shall be in a <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> of appropriate type. Otherwise the behavior is undefined.</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns: a valid local_iterator belonging to the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> that points to the value</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">const_local_iterator</span> <a name="idm45425350146912-bb"></a><span class="identifier">local_iterator_to</span><span class="special">(</span><span class="identifier">const_reference</span> value<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: value must be an lvalue and shall be in a <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> of appropriate type. Otherwise the behavior is undefined.</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns: a valid local_iterator belonging to the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> that points to the value</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">size_type</span> <a name="idm45425350139984-bb"></a><span class="identifier">bucket_count</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns the number of buckets passed in the constructor or the last rehash function.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">size_type</span> <a name="idm45425350136128-bb"></a><span class="identifier">bucket_size</span><span class="special">(</span><span class="identifier">size_type</span> n<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: n is in the range [0, this-&gt;bucket_count()).</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns the number of elements in the nth bucket.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">size_type</span> <a name="idm45425350130736-bb"></a><span class="identifier">bucket</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">key_type</span> <span class="special">&amp;</span> k<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns the index of the bucket in which elements with keys equivalent to k would be found, if any such element existed.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: If the hash functor throws.</p>
<p><span class="bold"><strong>Note</strong></span>: the return value is in the range [0, this-&gt;bucket_count()). </p>
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<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> KeyType<span class="special">,</span> <span class="keyword">typename</span> KeyHasher<span class="special">&gt;</span> 
  <span class="identifier">size_type</span> <a name="idm45425350125232-bb"></a><span class="identifier">bucket</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">KeyType</span> <span class="special">&amp;</span> k<span class="special">,</span> <span class="identifier">KeyHasher</span> hash_func<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: "hash_func" must be a hash function that induces the same hash values as the stored hasher. The difference is that "hash_func" hashes the given key instead of the value_type.</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns the index of the bucket in which elements with keys equivalent to k would be found, if any such element existed.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: If hash_func throws.</p>
<p><span class="bold"><strong>Note</strong></span>: the return value is in the range [0, this-&gt;bucket_count()). </p>
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<li class="listitem">
<pre class="literallayout"><span class="identifier">bucket_ptr</span> <a name="idm45425350116640-bb"></a><span class="identifier">bucket_pointer</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: Returns the bucket array pointer passed in the constructor or the last rehash function.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">local_iterator</span> <a name="idm45425350112768-bb"></a><span class="identifier">begin</span><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>Requires</strong></span>: n is in the range [0, this-&gt;bucket_count()).</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns a local_iterator pointing to the beginning of the sequence stored in the bucket n.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: [this-&gt;begin(n), this-&gt;end(n)) is a valid range containing all of the elements in the nth bucket. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">const_local_iterator</span> <a name="idm45425350106672-bb"></a><span class="identifier">begin</span><span class="special">(</span><span class="identifier">size_type</span> n<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: n is in the range [0, this-&gt;bucket_count()).</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns a const_local_iterator pointing to the beginning of the sequence stored in the bucket n.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: [this-&gt;begin(n), this-&gt;end(n)) is a valid range containing all of the elements in the nth bucket. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">const_local_iterator</span> <a name="idm45425350100304-bb"></a><span class="identifier">cbegin</span><span class="special">(</span><span class="identifier">size_type</span> n<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: n is in the range [0, this-&gt;bucket_count()).</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns a const_local_iterator pointing to the beginning of the sequence stored in the bucket n.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: [this-&gt;begin(n), this-&gt;end(n)) is a valid range containing all of the elements in the nth bucket. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">local_iterator</span> <a name="idm45425350093936-bb"></a><span class="identifier">end</span><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>Requires</strong></span>: n is in the range [0, this-&gt;bucket_count()).</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns a local_iterator pointing to the end of the sequence stored in the bucket n.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: [this-&gt;begin(n), this-&gt;end(n)) is a valid range containing all of the elements in the nth bucket. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">const_local_iterator</span> <a name="idm45425350087856-bb"></a><span class="identifier">end</span><span class="special">(</span><span class="identifier">size_type</span> n<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: n is in the range [0, this-&gt;bucket_count()).</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns a const_local_iterator pointing to the end of the sequence stored in the bucket n.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: [this-&gt;begin(n), this-&gt;end(n)) is a valid range containing all of the elements in the nth bucket. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">const_local_iterator</span> <a name="idm45425350081488-bb"></a><span class="identifier">cend</span><span class="special">(</span><span class="identifier">size_type</span> n<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: n is in the range [0, this-&gt;bucket_count()).</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns a const_local_iterator pointing to the end of the sequence stored in the bucket n.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: [this-&gt;begin(n), this-&gt;end(n)) is a valid range containing all of the elements in the nth bucket. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idm45425350075120-bb"></a><span class="identifier">rehash</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">bucket_traits</span> <span class="special">&amp;</span> new_bucket_traits<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: new_bucket_traits can hold a pointer to a new bucket array or the same as the old bucket array with a different length. new_size is the length of the the array pointed by new_buckets. If new_bucket_traits.bucket_begin() == this-&gt;bucket_pointer() new_bucket_traits.bucket_count() can be bigger or smaller than this-&gt;bucket_count(). 'new_bucket_traits' copy constructor should not throw.</p>
<p><span class="bold"><strong>Effects</strong></span>: If <code class="computeroutput">new_bucket_traits.bucket_begin() == this-&gt;bucket_pointer()</code> is false, unlinks values from the old bucket and inserts then in the new one according to the hash value of values.</p>
<p>If <code class="computeroutput">new_bucket_traits.bucket_begin() == this-&gt;bucket_pointer()</code> is true, the implementations avoids moving values as much as possible.</p>
<p>Bucket traits hold by *this is assigned from new_bucket_traits. If the container is configured as incremental&lt;&gt;, the split bucket is set to the new bucket_count().</p>
<p>If <code class="computeroutput"><a class="link" href="store_hash.html" title="Struct template store_hash">store_hash</a></code> option is true, this method does not use the hash function. If false, the implementation tries to minimize calls to the hash function (e.g. once for equivalent values if optimize_multikey&lt;true&gt; is true).</p>
<p>If rehash is successful updates the internal <code class="computeroutput"><a class="link" href="bucket_traits.html" title="Struct template bucket_traits">bucket_traits</a></code> with new_bucket_traits.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case linear in this-&gt;size(), worst case quadratic.</p>
<p><span class="bold"><strong>Throws</strong></span>: If the hasher functor throws. Basic guarantee. </p>
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<li class="listitem">
<pre class="literallayout"><span class="keyword">void</span> <a name="idm45425350065472-bb"></a><span class="identifier">full_rehash</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Note</strong></span>: This function is used when keys from inserted elements are changed (e.g. a language change when key is a string) but uniqueness and hash properties are preserved so a fast full rehash recovers invariants for *this without extracting and reinserting all elements again.</p>
<p><span class="bold"><strong>Requires</strong></span>: Calls produced to the hash function should not alter the value uniqueness properties of already inserted elements. If hasher(key1) == hasher(key2) was true when elements were inserted, it shall be true during calls produced in the execution of this function.</p>
<p>key_equal is not called inside this function so it is assumed that key_equal(value1, value2) should produce the same results as before for inserted elements.</p>
<p><span class="bold"><strong>Effects</strong></span>: Reprocesses all values hold by *this, recalculating their hash values and redistributing them though the buckets.</p>
<p>If <code class="computeroutput"><a class="link" href="store_hash.html" title="Struct template store_hash">store_hash</a></code> option is true, this method uses the hash function and updates the stored hash value.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Average case linear in this-&gt;size(), worst case quadratic.</p>
<p><span class="bold"><strong>Throws</strong></span>: If the hasher functor throws. Basic guarantee. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">bool</span> <a name="idm45425350058064-bb"></a><span class="identifier">incremental_rehash</span><span class="special">(</span><span class="keyword">bool</span> grow <span class="special">=</span> <span class="keyword">true</span><span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>:</p>
<p><span class="bold"><strong>Effects</strong></span>:</p>
<p><span class="bold"><strong>Complexity</strong></span>:</p>
<p><span class="bold"><strong>Throws</strong></span>:</p>
<p><span class="bold"><strong>Note</strong></span>: this method is only available if incremental&lt;true&gt; option is activated. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">bool</span> <a name="idm45425350051808-bb"></a><span class="identifier">incremental_rehash</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">bucket_traits</span> <span class="special">&amp;</span> new_bucket_traits<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Effects</strong></span>: If new_bucket_traits.bucket_count() is not this-&gt;bucket_count()/2 or this-&gt;bucket_count()*2, or this-&gt;split_bucket() != new_bucket_traits.bucket_count() returns false and does nothing.</p>
<p>Otherwise, copy assigns new_bucket_traits to the internal <code class="computeroutput"><a class="link" href="bucket_traits.html" title="Struct template bucket_traits">bucket_traits</a></code> and transfers all the objects from old buckets to the new ones.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Linear to size().</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing</p>
<p><span class="bold"><strong>Note</strong></span>: this method is only available if incremental&lt;true&gt; option is activated. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="identifier">size_type</span> <a name="idm45425350045392-bb"></a><span class="identifier">split_count</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: incremental&lt;&gt; option must be set</p>
<p><span class="bold"><strong>Effects</strong></span>: returns the current split count</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing </p>
</li>
</ol></div>
</div>
<div class="refsect2">
<a name="idm45927936228032"></a><h3>
<a name="idm45425350010336-bb"></a><code class="computeroutput">unordered_multiset</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">local_iterator</span> <a name="idm45425350009776-bb"></a><span class="identifier">s_local_iterator_to</span><span class="special">(</span><span class="identifier">reference</span> value<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: value must be an lvalue and shall be in a <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> of appropriate type. Otherwise the behavior is undefined.</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns: a valid local_iterator belonging to the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> that points to the value</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: This static function is available only if the <span class="emphasis"><em>value traits</em></span> is stateless. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">const_local_iterator</span> <a name="idm45425350001520-bb"></a><span class="identifier">s_local_iterator_to</span><span class="special">(</span><span class="identifier">const_reference</span> value<span class="special">)</span><span class="special">;</span></pre>
<p><span class="bold"><strong>Requires</strong></span>: value must be an lvalue and shall be in a <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> of appropriate type. Otherwise the behavior is undefined.</p>
<p><span class="bold"><strong>Effects</strong></span>: Returns: a valid local_iterator belonging to the <code class="computeroutput"><a class="link" href="unordered_set.html" title="Class template unordered_set">unordered_set</a></code> that points to the value</p>
<p><span class="bold"><strong>Complexity</strong></span>: Constant.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing.</p>
<p><span class="bold"><strong>Note</strong></span>: This static function is available only if the <span class="emphasis"><em>value traits</em></span> is stateless. </p>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">size_type</span> <a name="idm45425349993264-bb"></a><span class="identifier">suggested_upper_bucket_count</span><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>Effects</strong></span>: Returns the nearest new bucket count optimized for the container that is bigger or equal than n. This suggestion can be used to create bucket arrays with a size that will usually improve container's performance. If such value does not exist, the higher possible value is returned.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Amortized constant time.</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">size_type</span> <a name="idm45425349988480-bb"></a><span class="identifier">suggested_lower_bucket_count</span><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>Effects</strong></span>: Returns the nearest new bucket count optimized for the container that is smaller or equal than n. This suggestion can be used to create bucket arrays with a size that will usually improve container's performance. If such value does not exist, the lowest possible value is returned.</p>
<p><span class="bold"><strong>Complexity</strong></span>: Amortized constant time.</p>
<p><span class="bold"><strong>Throws</strong></span>: Nothing. </p>
</li>
</ol></div>
</div>
</div>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2005 Olaf Krzikalla<br>Copyright &#169; 2006-2015 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>)
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