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<tt><strong class="selflink"> std::map</strong></tt><div class="t-navbar-menu"><div><div>
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<tr class="t-sb-list-h1"><td colspan="5">  Member functions
</td></tr>
<tr><td colspan="5"> <table class="t-sb-list-ln-table"><tr><td><a href="map/map.html" title="cpp/container/map/map">map::map</a></td></tr></table>
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<tr><td colspan="5"> <table class="t-sb-list-ln-table"><tr><td><a href="map/operator%3d.html" title="cpp/container/map/operator=">map::operator=</a></td></tr></table>
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<tr><td colspan="5"> <table class="t-sb-list-ln-table"><tr><td><a href="map/get_allocator.html" title="cpp/container/map/get allocator">map::get_allocator</a></td></tr></table>
</td></tr>
<tr class="t-sb-list-h2"><td colspan="5">  Element access
</td></tr>
<tr><td colspan="5"> <table class="t-sb-list-ln-table"><tr><td><a href="map/at.html" title="cpp/container/map/at">map::at</a></td></tr></table>
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<tr class="t-sb-list-h2"><td colspan="5">  Iterators
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<td><a href="map/begin.html" title="cpp/container/map/begin">map::begin<br>map::cbegin</a></td>
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<br><span class="t-mark">(C++11)</span>
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<td><a href="map/end.html" title="cpp/container/map/end">map::end<br>map::cend</a></td>
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<br><span class="t-mark">(C++11)</span>
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<td><a href="map/rbegin.html" title="cpp/container/map/rbegin">map::rbegin<br>map::crbegin</a></td>
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<br><span class="t-mark">(C++11)</span>
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<td><a href="map/rend.html" title="cpp/container/map/rend">map::rend<br>map::crend</a></td>
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<br><span class="t-mark">(C++11)</span>
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<tr class="t-sb-list-h2"><td colspan="5">  Capacity
</td></tr>
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<tr class="t-sb-list-h2"><td colspan="5">  Modifiers
</td></tr>
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<td><a href="map/emplace.html" title="cpp/container/map/emplace">map::emplace</a></td>
<td><span class="t-mark">(C++11)</span></td>
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<td><a href="map/emplace_hint.html" title="cpp/container/map/emplace hint">map::emplace_hint</a></td>
<td><span class="t-mark">(C++11)</span></td>
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<tr class="t-sb-list-h2"><td colspan="5">  Lookup
</td></tr>
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<tr><td colspan="5"> <table class="t-sb-list-ln-table"><tr><td><a href="map/find.html" title="cpp/container/map/find">map::find</a></td></tr></table>
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<tr class="t-sb-list-h2"><td colspan="5">  Observers
</td></tr>
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<td> <div>Defined in header <tt>&lt;map&gt;</tt>
 </div>
</td>
<td></td>
<td></td>
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<td class="t-ddcl-list-item-nopad"> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><br><p>    <span class="kw1">class</span> Key,<br>
    <span class="kw1">class</span> T,<br>
    <span class="kw1">class</span> Compare <span class="sy1">=</span> <a href="../utility/functional/less.html"><span class="kw878">std::<span class="me2">less</span></span></a><span class="sy1">&lt;</span>Key<span class="sy1">&gt;</span>,<br>
    <span class="kw1">class</span> Allocator <span class="sy1">=</span> <a href="../memory/allocator.html"><span class="kw567">std::<span class="me2">allocator</span></span></a><span class="sy1">&lt;</span><a href="../utility/pairhtml.html"><span class="kw900">std::<span class="me2">pair</span></span></a><span class="sy1">&lt;</span><span class="kw4">const</span> Key, T<span class="sy1">&gt;</span> <span class="sy1">&gt;</span><br></p>
<span class="sy1">&gt;</span> <span class="kw1">class</span> map<span class="sy4">;</span></span></div>
</td>
<td class="t-ddcl-list-item-nopad">  </td>
<td class="t-ddcl-list-item-nopad">  </td>
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<p>Map is an associative container that contains a sorted list of unique key-value pairs. That list is sorted using the comparison function <tt>Compare</tt> applied to the keys.  Search, removal, and insertion operations have logarithmic complexity. Maps are usually implemented as <a href="http://en.wikipedia.com/wiki/Red%E2%80%93black_tree" class="extiw" title="enwiki:Red–black tree">red-black trees</a>.
</p>
<p><tt>std::map</tt> meets the requirements of <a href="../concept/Container.html" title="cpp/concept/Container"><tt>Container</tt></a>, <a href="http://en.cppreference.com/mwiki/index.php?title=cpp/concept/AllocatorAwareContainer&amp;action=edit&amp;redlink=1" class="new" title="cpp/concept/AllocatorAwareContainer (page does not exist)"><tt>AllocatorAwareContainer</tt></a>, <a href="http://en.cppreference.com/mwiki/index.php?title=cpp/concept/AssociativeContainer&amp;action=edit&amp;redlink=1" class="new" title="cpp/concept/AssociativeContainer (page does not exist)"><tt>AssociativeContainer</tt></a> and <a href="http://en.cppreference.com/mwiki/index.php?title=cpp/concept/ReversibleContainer&amp;action=edit&amp;redlink=1" class="new" title="cpp/concept/ReversibleContainer (page does not exist)"><tt>ReversibleContainer</tt></a>.
</p>
<table id="toc" class="toc"><tr><td>
<div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1 tocsection-1"><a href="#Member_types"><span class="tocnumber">1</span> <span class="toctext">Member types</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="#Member_classes"><span class="tocnumber">2</span> <span class="toctext">Member classes</span></a></li>
<li class="toclevel-1 tocsection-3">
<a href="#Member_functions"><span class="tocnumber">3</span> <span class="toctext">Member functions</span></a>
<ul>
<li class="toclevel-2"><a href="#Element_access"><span class="tocnumber">3.1</span> <span class="toctext">Element access</span></a></li>
<li class="toclevel-2"><a href="#Iterators"><span class="tocnumber">3.2</span> <span class="toctext">Iterators</span></a></li>
<li class="toclevel-2"><a href="#Capacity"><span class="tocnumber">3.3</span> <span class="toctext">Capacity</span></a></li>
<li class="toclevel-2"><a href="#Modifiers"><span class="tocnumber">3.4</span> <span class="toctext">Modifiers</span></a></li>
<li class="toclevel-2"><a href="#Lookup"><span class="tocnumber">3.5</span> <span class="toctext">Lookup</span></a></li>
<li class="toclevel-2"><a href="#Observers"><span class="tocnumber">3.6</span> <span class="toctext">Observers</span></a></li>
</ul>
</li>
<li class="toclevel-1 tocsection-4"><a href="#Non-member_functions"><span class="tocnumber">4</span> <span class="toctext">Non-member functions</span></a></li>
</ul>
</td></tr></table>
<h3>
<span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/container/map&amp;action=edit&amp;section=1" title="Edit section: Member types">edit</a>]</span> <span class="mw-headline" id="Member_types">Member types</span>
</h3>
<table class="t-dcl-list-begin">
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-hitem">
<td>  Member type
</td>
<td>  Definition
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>key_type</tt>
</td>
<td>  <tt>Key</tt> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>mapped_type</tt>
</td>
<td>  <tt>T</tt> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>value_type</tt>
</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../utility/pairhtml.html"><span class="kw900">std::<span class="me2">pair</span></span></a><span class="sy1">&lt;</span><span class="kw4">const</span> Key, T<span class="sy1">&gt;</span></span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>size_type</tt>
</td>
<td>  Unsigned integral type (usually <span class="mw-geshi cpp source-cpp">size_t</span>) 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>difference_type</tt>
</td>
<td>  Signed integer type (usually <span class="mw-geshi cpp source-cpp">ptrdiff_t</span>) 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>key_compare</tt>
</td>
<td>  <tt>Compare</tt> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>allocator_type</tt>
</td>
<td>  <tt>Allocator</tt> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>reference</tt>
</td>
<td>  <tt>Allocator::reference</tt> <span class="t-mark">(until C++11)</span><br><tt>value_type&amp;</tt> <span class="t-mark">(since C++11)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>const_reference</tt>
</td>
<td>  <tt>Allocator::const_reference</tt> <span class="t-mark">(until C++11)</span><br><tt>const value_type&amp;</tt> <span class="t-mark">(since C++11)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>pointer</tt>
</td>
<td>  <tt>Allocator::pointer</tt> <span class="t-mark">(until C++11)</span><br><span class="mw-geshi cpp source-cpp"><a href="../memory/allocator_traitshtml.html"><span class="kw568">std::<span class="me2">allocator_traits</span></span></a><span class="sy1">&lt;</span>Allocator<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">pointer</span></span> <span class="t-mark">(since C++11)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>const_pointer</tt>
</td>
<td>  <span class="mw-geshi cpp source-cpp">Allocator<span class="sy4">::</span><span class="me2">const_pointer</span></span> <span class="t-mark">(until C++11)</span><br><span class="mw-geshi cpp source-cpp"><a href="../memory/allocator_traitshtml.html"><span class="kw568">std::<span class="me2">allocator_traits</span></span></a><span class="sy1">&lt;</span>Allocator<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">const_pointer</span></span> <span class="t-mark">(since C++11)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>iterator</tt>
</td>
<td>  <a href="../concept/BidirectionalIterator.html" title="cpp/concept/BidirectionalIterator"><tt>BidirectionalIterator</tt></a> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <tt>const_iterator</tt>
</td>
<td>  Constant bidirectional iterator 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <code>reverse_iterator</code>
</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../iterator/reverse_iterator.html"><span class="kw537">std::<span class="me2">reverse_iterator</span></span></a><span class="sy1">&lt;</span>iterator<span class="sy1">&gt;</span></span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <code>const_reverse_iterator</code>
</td>
<td>  <span class="mw-geshi cpp source-cpp"><a href="../iterator/reverse_iterator.html"><span class="kw537">std::<span class="me2">reverse_iterator</span></span></a><span class="sy1">&lt;</span>const_iterator<span class="sy1">&gt;</span></span> 
</td>
</tr>
</table>
<h3>
<span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/container/map&amp;action=edit&amp;section=2" title="Edit section: Member classes">edit</a>]</span> <span class="mw-headline" id="Member_classes">Member classes</span>
</h3>
<table class="t-dcl-list-begin">
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/value_compare.html" title="cpp/container/map/value compare"> value_compare</a></div></div>
</td>
<td>   compares objects of type <tt>value_type</tt> <br><span class="t-mark">(class)</span> 
</td>
</tr>
</table>
<h3>
<span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/container/map&amp;action=edit&amp;section=3" title="Edit section: Member functions">edit</a>]</span> <span class="mw-headline" id="Member_functions">Member functions</span>
</h3>
<table class="t-dcl-list-begin">
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div t-dcl-member-nobold-div"><div><a href="map/map.html" title="cpp/container/map/map"> (constructor)</a></div></div>
</td>
<td>  constructs the <tt>map</tt> <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div t-dcl-member-nobold-div"><div><a href="map/_map.html" title="cpp/container/map/~map"> (destructor)</a></div></div>
</td>
<td>  destructs the <tt>map</tt> <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/operator%3d.html" title="cpp/container/map/operator="> operator=</a></div></div>
</td>
<td>   assigns values to the container  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/get_allocator.html" title="cpp/container/map/get allocator"> get_allocator</a></div></div>
</td>
<td>   returns the associated allocator  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2"> <h5> <span class="mw-headline" id="Element_access">  Element access </span>
</h5>
</td></tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div">
<div><a href="map/at.html" title="cpp/container/map/at"> at</a></div>
<div><span class="t-mark">(C++11)</span></div>
</div>
</td>
<td>   access specified element with bounds checking  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/operator_at.html" title="cpp/container/map/operator at"> operator[]</a></div></div>
</td>
<td>   access specified element  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2"> <h5> <span class="mw-headline" id="Iterators">  Iterators </span>
</h5>
</td></tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div">
<div><a href="map/begin.html" title="cpp/container/map/begin"> begin<br> cbegin</a></div>
<div><br></div>
</div>
</td>
<td>   returns an iterator to the beginning  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div">
<div><a href="map/end.html" title="cpp/container/map/end"> end <br>cend</a></div>
<div><br></div>
</div>
</td>
<td>   returns an iterator to the end  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div">
<div><a href="map/rbegin.html" title="cpp/container/map/rbegin"> rbegin<br> crbegin</a></div>
<div><br></div>
</div>
</td>
<td>   returns a reverse iterator to the beginning  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div">
<div><a href="map/rend.html" title="cpp/container/map/rend"> rend<br> crend</a></div>
<div><br></div>
</div>
</td>
<td>   returns a reverse iterator to the end  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2"> <h5> <span class="mw-headline" id="Capacity">  Capacity </span>
</h5>
</td></tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/empty.html" title="cpp/container/map/empty"> empty</a></div></div>
</td>
<td>   checks whether the container is empty  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/size.html" title="cpp/container/map/size"> size</a></div></div>
</td>
<td>   returns the number of elements  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/max_size.html" title="cpp/container/map/max size"> max_size</a></div></div>
</td>
<td>   returns the maximum possible number of elements  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2"> <h5> <span class="mw-headline" id="Modifiers">  Modifiers </span>
</h5>
</td></tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/clear.html" title="cpp/container/map/clear"> clear</a></div></div>
</td>
<td>   clears the contents  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/insert.html" title="cpp/container/map/insert"> insert</a></div></div>
</td>
<td>   inserts elements  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div">
<div><a href="map/emplace.html" title="cpp/container/map/emplace"> emplace</a></div>
<div><span class="t-mark">(C++11)</span></div>
</div>
</td>
<td>   constructs element in-place  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div">
<div><a href="map/emplace_hint.html" title="cpp/container/map/emplace hint"> emplace_hint</a></div>
<div><span class="t-mark">(C++11)</span></div>
</div>
</td>
<td>   constructs elements in-place using a hint  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/erase.html" title="cpp/container/map/erase"> erase</a></div></div>
</td>
<td>   erases elements  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/swap.html" title="cpp/container/map/swap"> swap</a></div></div>
</td>
<td>   swaps the contents  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2"> <h5> <span class="mw-headline" id="Lookup">  Lookup </span>
</h5>
</td></tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/count.html" title="cpp/container/map/count"> count</a></div></div>
</td>
<td>   returns the number of elements matching specific key  <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/find.html" title="cpp/container/map/find"> find</a></div></div>
</td>
<td>   finds element with specific key <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/equal_range.html" title="cpp/container/map/equal range"> equal_range</a></div></div>
</td>
<td>   returns range of elements matching a specific key <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/lower_bound.html" title="cpp/container/map/lower bound"> lower_bound</a></div></div>
</td>
<td>   returns an iterator to the first element <i>not less</i> than the given value <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/upper_bound.html" title="cpp/container/map/upper bound"> upper_bound</a></div></div>
</td>
<td>   returns an iterator to the first element <i>greater</i> than a certain value <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2"> <h5> <span class="mw-headline" id="Observers">  Observers </span>
</h5>
</td></tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/key_comp.html" title="cpp/container/map/key comp"> key_comp</a></div></div>
</td>
<td>   returns the function that compares keys <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/value_comp.html" title="cpp/container/map/value comp"> value_comp</a></div></div>
</td>
<td>   returns the function that compares keys <br><span class="t-mark">(public member function)</span> 
</td>
</tr>
</table>
<h3>
<span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/container/map&amp;action=edit&amp;section=4" title="Edit section: Non-member functions">edit</a>]</span> <span class="mw-headline" id="Non-member_functions">Non-member functions</span>
</h3>
<table class="t-dcl-list-begin">
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/operator_cmp.html" title="cpp/container/map/operator cmp"> operator==<br>operator!=<br>operator&lt;<br>operator&lt;=<br>operator&gt;<br>operator&gt;=</a></div></div>
</td>
<td>   lexicographically compares the values in the map  <br><span class="t-mark">(function template)</span> 
</td>
</tr>
<tr><td colspan="2" class="t-dcl-list-sep">
</td></tr>
<tr class="t-dcl-list-item">
<td>  <div class="t-dcl-member-div"><div><a href="map/swap2.html" title="cpp/container/map/swap2"> std::swap<span class="t-dcl-small">(std::map)</span></a></div></div>
</td>
<td>   specializes the <span class="mw-geshi cpp source-cpp"><a href="../algorithm/swap.html"><span class="kw1274">std::<span class="me2">swap</span></span></a></span> algorithm  <br><span class="t-mark">(function template)</span> 
</td>
</tr>
</table>
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