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<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="make_move_iterator.html" title="cpp/iterator/make move iterator"><span class="t-lines"><span>make_move_iterator</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="back_inserter.html" title="cpp/iterator/back inserter"><span class="t-lines"><span>back_inserter</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="front_inserter.html" title="cpp/iterator/front inserter"><span class="t-lines"><span>front_inserter</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="inserter.html" title="cpp/iterator/inserter"><span class="t-lines"><span>inserter</span></span></a></div></div></td></tr>
</table></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Stream iterators</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="istream_iterator.html" title="cpp/iterator/istream iterator"><span class="t-lines"><span>istream_iterator</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ostream_iterator.html" title="cpp/iterator/ostream iterator"><span class="t-lines"><span>ostream_iterator</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="istreambuf_iterator.html" title="cpp/iterator/istreambuf iterator"><span class="t-lines"><span>istreambuf_iterator</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="ostreambuf_iterator.html" title="cpp/iterator/ostreambuf iterator"><span class="t-lines"><span>ostreambuf_iterator</span></span></a></div></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Iterator operations</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="advance.html" title="cpp/iterator/advance"><span class="t-lines"><span>advance</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="distance.html" title="cpp/iterator/distance"><span class="t-lines"><span>distance</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="prev.html" title="cpp/iterator/prev"><span class="t-lines"><span>prev</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="next.html" title="cpp/iterator/next"><span class="t-lines"><span>next</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span></span></div></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Range access</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="begin.html" title="cpp/iterator/begin"><span class="t-lines"><span>begin</span><span>cbegin</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="end.html" title="cpp/iterator/end"><span class="t-lines"><span>end</span><span>cend</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx11">(C++11)</span></span><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="rbegin.html" title="cpp/iterator/rbegin"><span class="t-lines"><span>rbegin</span><span>crbegin</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="rend.html" title="cpp/iterator/rend"><span class="t-lines"><span>rend</span><span>crend</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div></div></td></tr>
<tr class="t-nv-h1"><td colspan="5"> Container access</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="size.html" title="cpp/iterator/size"><span class="t-lines"><span>size</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="empty.html" title="cpp/iterator/empty"><span class="t-lines"><span>empty</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="data.html" title="cpp/iterator/data"><span class="t-lines"><span>data</span></span></a></div><div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx17">(C++17)</span></span></span></div></div></td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div><div class="t-navbar-head"><strong class="selflink"><tt>std::reverse_iterator</tt></strong><div class="t-navbar-menu"><div><div><table class="t-nv-begin" cellpadding="0" style="">
<tr class="t-nv-h2"><td colspan="5"> Member functions</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="reverse_iterator/reverse_iterator.html" title="cpp/iterator/reverse iterator/reverse iterator"><span class="t-lines"><span>reverse_iterator::reverse_iterator</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="reverse_iterator/operator=.html" title="cpp/iterator/reverse iterator/operator="><span class="t-lines"><span>reverse_iterator::operator=</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="reverse_iterator/base.html" title="cpp/iterator/reverse iterator/base"><span class="t-lines"><span>reverse_iterator::base</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="reverse_iterator/operator*.html" title="cpp/iterator/reverse iterator/operator*"><span class="t-lines"><span>reverse_iterator::operator*</span><span>reverse_iterator::operator-></span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="reverse_iterator/operator_at.html" title="cpp/iterator/reverse iterator/operator at"><span class="t-lines"><span>reverse_iterator::operator[]</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="reverse_iterator/operator_arith.html" title="cpp/iterator/reverse iterator/operator arith"><span class="t-lines"><span>reverse_iterator::operator++</span><span>reverse_iterator::operator+</span><span>reverse_iterator::operator+=</span><span>reverse_iterator::operator--</span><span>reverse_iterator::operator-</span><span>reverse_iterator::operator-=</span></span></a></div></div></td></tr>
<tr class="t-nv-h2"><td colspan="5"> Non-member functions</td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="reverse_iterator/operator_cmp.html" title="cpp/iterator/reverse iterator/operator cmp"><span class="t-lines"><span>operator==</span><span>operator!=</span><span>operator<</span><span>operator></span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="reverse_iterator/operator+.html" title="cpp/iterator/reverse iterator/operator+"><span class="t-lines"><span>operator+</span></span></a></div></div></td></tr>
<tr class="t-nv"><td colspan="5"><div class="t-nv-ln-table"><div><a href="reverse_iterator/operator-.html" title="cpp/iterator/reverse iterator/operator-"><span class="t-lines"><span>operator-</span></span></a></div></div></td></tr>
</table></div><div><span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/reverse_iterator/navbar_content&action=edit">[edit]</a></span></div></div></div></div><div class="t-navbar-sep"> </div></div>
<table class="t-dcl-begin"><tbody>
<tr class="t-dsc-header">
<td> <div>Defined in header <code><a href="../header/iterator.html" title="cpp/header/iterator"><iterator></a></code>
</div></td>
<td></td>
<td></td>
</tr>
</tbody>
<tbody class="t-dcl-rev">
<tr class="t-dcl t-until-cxx17">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Iterator <span class="sy1">></span><br />
<p><span class="kw1">class</span> reverse_iterator <span class="sy4">:</span> <span class="kw1">public</span> <a href="iterator.html"><span class="kw563">std::<span class="me2">iterator</span></span></a><span class="sy1"><</span><br />
                           <span class="kw1">typename</span> <a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">iterator_category</span>,<br />
                           <span class="kw1">typename</span> <a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span>,<br />
                           <span class="kw1">typename</span> <a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">difference_type</span>,<br />
                           <span class="kw1">typename</span> <a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">pointer</span>,<br />
</p>
                           <span class="kw1">typename</span> <a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">reference</span> <span class="sy1">></span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td> <span class="t-mark-rev t-until-cxx17">(until C++17)</span> </td>
</tr>
<tr class="t-dcl t-since-cxx17">
<td> <div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Iterator <span class="sy1">></span><br />
<span class="kw1">class</span> reverse_iterator<span class="sy4">;</span></span></div></td>
<td class="t-dcl-nopad"> </td>
<td> <span class="t-mark-rev t-since-cxx17">(since C++17)</span> </td>
</tr>
</tbody><tbody>
<tr class="t-dcl-sep"><td></td><td></td><td></td></tr>
</tbody></table>
<p><code>std::reverse_iterator</code> is an iterator adaptor that reverses the direction of a given iterator. In other words, when provided with a bidirectional iterator, <code>std::reverse_iterator</code> produces a new iterator that moves from the end to the beginning of the sequence defined by the underlying bidirectional iterator.
</p><p>For a reverse iterator <code>r</code> constructed from an iterator <code>i</code>, the relationship <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy3">&</span><span class="sy2">*</span>r <span class="sy1">==</span> <span class="sy3">&</span><span class="sy2">*</span><span class="br0">(</span>i<span class="sy2">-</span><span class="nu0">1</span><span class="br0">)</span></span></span> is always true (as long as <code>r</code> is dereferenceable); thus a reverse iterator constructed from a one-past-the-end iterator dereferences to the last element in a sequence.
</p><p>This is the iterator returned by member functions <code>rbegin()</code> and <code>rend()</code> of the standard library containers.
</p>
<div class="t-image">
<p><img alt="range-rbegin-rend.svg" src="../../../../upload.cppreference.com/mwiki/images/3/39/range-rbegin-rend.svg" width="589" height="250" />
</p>
</div>
<table id="toc" class="toc"><tr><td><div id="toctitle"><h2>Contents</h2></div>
<ul>
<li class="toclevel-1"><a href="reverse_iterator.html#Member_types"><span class="tocnumber">1</span> <span class="toctext">Member types</span></a></li>
<li class="toclevel-1 tocsection-1"><a href="reverse_iterator.html#Member_functions"><span class="tocnumber">2</span> <span class="toctext">Member functions</span></a></li>
<li class="toclevel-1 tocsection-2"><a href="reverse_iterator.html#Member_objects"><span class="tocnumber">3</span> <span class="toctext">Member objects</span></a></li>
<li class="toclevel-1 tocsection-3"><a href="reverse_iterator.html#Non-member_functions"><span class="tocnumber">4</span> <span class="toctext">Non-member functions</span></a></li>
<li class="toclevel-1 tocsection-4"><a href="reverse_iterator.html#Example"><span class="tocnumber">5</span> <span class="toctext">Example</span></a></li>
<li class="toclevel-1 tocsection-5"><a href="reverse_iterator.html#See_also"><span class="tocnumber">6</span> <span class="toctext">See also</span></a></li>
</ul>
</td></tr></table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/iterator/inherit&action=edit&section=T-1" title="Template:cpp/iterator/iterator/inherit">edit</a>]</span> <span class="mw-headline" id="Member_types">Member types</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc-hitem">
<td> Member type
</td>
<td> Definition
</td></tr>
<tr class="t-dsc">
<td> <code>value_type</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span></span></span>
</td></tr>
<tr class="t-dsc">
<td> <code>difference_type</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">difference_type</span></span></span>
</td></tr>
<tr class="t-dsc">
<td> <code>pointer</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">pointer</span></span></span>
</td></tr>
<tr class="t-dsc">
<td> <code>reference</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">reference</span></span></span>
</td></tr>
<tr class="t-dsc">
<td> <code>iterator_category</code>
</td>
<td> <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">iterator_category</span></span></span>
</td></tr>
</table>
<p>Note: before C++17, these member types are required to be obtained by inheriting from <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="iterator.html"><span class="kw563">std::<span class="me2">iterator</span></span></a><span class="sy1"><</span> <a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">iterator_category</span><br />
, <a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span><br />
, <a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">difference_type</span><br />
, <a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">pointer</span><br />
, <a href="iterator_traits.html"><span class="kw557">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iterator<span class="sy1">></span><span class="sy4">::</span><span class="me2">reference</span><br />
<span class="sy1">></span></span></span>.
</p>
<table class="t-dsc-begin">
<tr class="t-dsc-hitem">
<td> Member type
</td>
<td> Definition
</td></tr>
<tr class="t-dsc">
<td> <code>iterator_type</code>
</td>
<td> <code>Iterator</code>
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/iterator/reverse_iterator&action=edit&section=1" title="Edit section: Member functions">edit</a>]</span> <span class="mw-headline" id="Member_functions">Member functions</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td> <div class="t-dsc-member-div t-dsc-member-nobold-div"><div><a href="reverse_iterator/reverse_iterator.html" title="cpp/iterator/reverse iterator/reverse iterator"> <span class="t-lines"><span>(constructor)</span></span></a></div></div>
</td>
<td> constructs a new iterator adaptor <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/adaptor/dsc_constructor&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="reverse_iterator/operator=.html" title="cpp/iterator/reverse iterator/operator="> <span class="t-lines"><span>operator=</span></span></a></div></div>
</td>
<td> assigns another iterator <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/adaptor/dsc_operator%3D&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="reverse_iterator/base.html" title="cpp/iterator/reverse iterator/base"> <span class="t-lines"><span>base</span></span></a></div></div>
</td>
<td> accesses the underlying iterator <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/adaptor/dsc_base&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="reverse_iterator/operator*.html" title="cpp/iterator/reverse iterator/operator*"> <span class="t-lines"><span>operator*</span><span>operator-></span></span></a></div></div>
</td>
<td> accesses the pointed-to element <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/adaptor/dsc_operator*&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="reverse_iterator/operator_at.html" title="cpp/iterator/reverse iterator/operator at"> <span class="t-lines"><span>operator[]</span></span></a></div></div>
</td>
<td> accesses an element by index <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/adaptor/dsc_operator_at&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="reverse_iterator/operator_arith.html" title="cpp/iterator/reverse iterator/operator arith"> <span class="t-lines"><span>operator++</span><span>operator++<span class="t-dsc-small">(int)</span></span><span>operator+=</span><span>operator+</span><span>operator--</span><span>operator--<span class="t-dsc-small">(int)</span></span><span>operator-=</span><span>operator-</span></span></a></div></div>
</td>
<td> advances or decrements the iterator <br /> <span class="t-mark">(public member function)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/adaptor/dsc_operator_arith&action=edit">[edit]</a></span>
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/iterator/reverse_iterator&action=edit&section=2" title="Edit section: Member objects">edit</a>]</span> <span class="mw-headline" id="Member_objects">Member objects</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc-hitem">
<td> Member name
</td>
<td> Definition
</td></tr>
<tr class="t-dsc">
<td> <code>current</code> <span class="t-mark">(protected)</span>
</td>
<td> a copy of the base() iterator
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/iterator/reverse_iterator&action=edit&section=3" 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-dsc-begin">
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="reverse_iterator/operator_cmp.html" title="cpp/iterator/reverse iterator/operator cmp"> <span class="t-lines"><span>operator==</span><span>operator!=</span><span>operator<</span><span>operator<=</span><span>operator></span><span>operator>=</span></span></a></div></div>
</td>
<td> compares the underlying iterators <br /> <span class="t-mark">(function template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/adaptor/dsc_operator_cmp&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="reverse_iterator/operator+.html" title="cpp/iterator/reverse iterator/operator+"> <span class="t-lines"><span>operator+</span></span></a></div></div>
</td>
<td> advances the iterator <br /> <span class="t-mark">(function template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/adaptor/dsc_operator%2B&action=edit">[edit]</a></span>
</td></tr>
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="reverse_iterator/operator-.html" title="cpp/iterator/reverse iterator/operator-"> <span class="t-lines"><span>operator-</span></span></a></div></div>
</td>
<td> computes the distance between two iterator adaptors <br /> <span class="t-mark">(function template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/adaptor/dsc_operator-&action=edit">[edit]</a></span>
</td></tr>
</table>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/iterator/reverse_iterator&action=edit&section=4" title="Edit section: Example">edit</a>]</span> <span class="mw-headline" id="Example">Example</span></h3>
<div class="t-example"><div class="t-example-live-link"><div class="coliru-btn coliru-btn-run-init">Run this code</div></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="cpp source-cpp"><pre class="de1"><span class="co2">#include <iostream></span>
<span class="co2">#include <string></span>
<span class="co2">#include <iterator></span>
 
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<a href="../string/basic_string.html"><span class="kw1071">std::<span class="me2">string</span></span></a> s <span class="sy1">=</span> <span class="st0">"Hello, world"</span><span class="sy4">;</span>
std<span class="sy4">::</span><span class="me2">reverse_iterator</span><span class="sy1"><</span>std<span class="sy4">::</span><span class="me2">string</span><span class="sy4">::</span><span class="me2">iterator</span><span class="sy1">></span> r <span class="sy1">=</span> s.<span class="me1">rbegin</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
r<span class="br0">[</span><span class="nu0">7</span><span class="br0">]</span> <span class="sy1">=</span> <span class="st0">'O'</span><span class="sy4">;</span> <span class="co1">// replaces 'o' with 'O' </span>
r <span class="sy2">+</span><span class="sy1">=</span> <span class="nu0">7</span><span class="sy4">;</span> <span class="co1">// iterator now points at 'O'</span>
<a href="../string/basic_string.html"><span class="kw1071">std::<span class="me2">string</span></span></a> rev<span class="br0">(</span>r, s.<span class="me1">rend</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
<a href="../io/cout.html"><span class="kw1480">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> rev <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div></div>
<p>Output:
</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;"><div class="text source-text"><pre class="de1">OlleH</pre></div></div>
</div>
<h3><span class="editsection">[<a href="http://en.cppreference.com/mwiki/index.php?title=cpp/iterator/reverse_iterator&action=edit&section=5" title="Edit section: See also">edit</a>]</span> <span class="mw-headline" id="See_also">See also</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td> <div class="t-dsc-member-div"><div><a href="iterator.html" title="cpp/iterator/iterator"> <span class="t-lines"><span>iterator</span></span></a></div></div>
</td>
<td> the basic iterator <br /> <span class="t-mark">(class template)</span> <span class="editsection noprint plainlinks" title="Edit this template"><a rel="nofollow" class="external text" href="http://en.cppreference.com/mwiki/index.php?title=Template:cpp/iterator/dsc_iterator&action=edit">[edit]</a></span>
</td></tr>
</table>
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