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<title>std::reverse_iterator&lt;Iter&gt;::reverse_iterator</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::reverse_iterator&lt;Iter&gt;::</span>reverse_iterator</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-iterator.html">iterator</a>&lrm; | <a href="cpp-iterator-reverse_iterator.html">reverse iterator</a></span></div>
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<td rowspan="142">(1)</td>
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<div><span class="mw-geshi cpp source-cpp">reverse_iterator<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-until-cxx17">(C++17 &#21069;)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> reverse_iterator<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 &#36215;)</span></td>
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<td rowspan="142">(2)</td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">explicit</span> reverse_iterator<span class="br0">(</span> iterator_type x <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-until-cxx17">(C++17 &#21069;)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> <span class="kw1">explicit</span> reverse_iterator<span class="br0">(</span> iterator_type x <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 &#36215;)</span></td>
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<td rowspan="142">(3)</td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> U <span class="sy1">&gt;</span><br />
reverse_iterator<span class="br0">(</span> <span class="kw4">const</span> reverse_iterator<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> other <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-until-cxx17">(C++17 &#21069;)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> <span class="kw1">class</span> U <span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> reverse_iterator<span class="br0">(</span> <span class="kw4">const</span> reverse_iterator<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> other <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 &#36215;)</span></td>
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<p>&#26500;&#36896;&#26032;&#30340;&#36845;&#20195;&#22120;&#36866;&#37197;&#22120;&#12290;</p>
<div class="t-li1"><span class="t-li">1)</span> &#40664;&#35748;&#26500;&#36896;&#20989;&#25968;&#12290;&#20540;&#21021;&#22987;&#21270;&#24213;&#23618;&#36845;&#20195;&#22120;&#12290;&#33509;&#19988;&#21807;&#33509;&#20540;&#21021;&#22987;&#21270;&#30340;&#24213;&#23618;&#36845;&#20195;&#22120;&#26377;&#21463;&#23450;&#20041;&#34892;&#20026;&#65292;&#20135;&#29983;&#30340;&#36845;&#20195;&#22120;&#19978;&#30340;&#25805;&#20316;&#25165;&#19968;&#26679;&#26377;&#21463;&#23450;&#20041;&#34892;&#20026;&#12290;</div>
<div class="t-li1"><span class="t-li">2)</span> &#20197; <code>x</code> &#21021;&#22987;&#21270;&#24213;&#23618;&#36845;&#20195;&#22120;&#12290;</div>
<div class="t-li1"><span class="t-li">3)</span> &#20197; <code>other</code> &#30340;&#24213;&#23618;&#36845;&#20195;&#22120;&#21021;&#22987;&#21270;&#24213;&#23618;&#36845;&#20195;&#22120;&#12290;<span class="t-rev-inl t-since-cxx20"><span>&#27492;&#37325;&#36733;&#20165;&#33509; <code>U</code> &#19982; <code>Iter</code> &#19981;&#26159;&#21516;&#19968;&#31867;&#22411;&#19988; <span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">convertible_to</span><span class="sy1">&lt;</span><span class="kw4">const</span> U<span class="sy3">&amp;</span>, Iter<span class="sy1">&gt;</span></span></span> &#24471;&#21040;&#23454;&#29616;&#25165;&#21442;&#19982;&#37325;&#36733;&#20915;&#35758;</span> <span><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></span></span>&#12290;</div>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
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<td>x</td>
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<td>&#35201;&#36866;&#37197;&#30340;&#36845;&#20195;&#22120;</td>
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<td>other</td>
<td>-</td>
<td>&#35201;&#22797;&#21046;&#30340;&#36845;&#20195;&#22120;&#36866;&#37197;&#22120;</td>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">&#31034;&#20363;</span></h3>
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<td class="mbox-empty-cell"></td>
<td class="mbox-text" style="">&#26412;&#33410;&#26410;&#23436;&#25104;<br />
&#21407;&#22240;&#65306;&#26242;&#26080;&#31034;&#20363;</td>
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<h3><span class="mw-headline" id=".E7.BC.BA.E9.99.B7.E6.8A.A5.E5.91.8A">&#32570;&#38519;&#25253;&#21578;</span></h3>
<p>&#19979;&#21015;&#26356;&#25913;&#34892;&#20026;&#30340;&#32570;&#38519;&#25253;&#21578;&#36861;&#28335;&#22320;&#24212;&#29992;&#20110;&#20197;&#21069;&#20986;&#29256;&#30340; C++ &#26631;&#20934;&#12290;</p>
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<th>DR</th>
<th>&#24212;&#29992;&#20110;</th>
<th>&#20986;&#29256;&#26102;&#30340;&#34892;&#20026;</th>
<th>&#27491;&#30830;&#34892;&#20026;</th>
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<td><a rel="nofollow" class="external text" href="https://cplusplus.github.io/LWG/issue3435">LWG 3435</a></td>
<td>C++20</td>
<td>&#28304;&#33258;&#21478;&#19968; <code>reverse_iterator</code> &#30340;&#36716;&#25442;&#26500;&#36896;&#20989;&#25968;&#26410;&#21463;&#32422;&#26463;</td>
<td>&#24050;&#32422;&#26463;</td>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">&#21442;&#38405;</span></h3>
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<div><a href="cpp-iterator-reverse_iterator-operator=.html"><span class="t-lines"><span>operator=</span></span></a></div>
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<td>&#36171;&#20540;&#21478;&#19968;&#36845;&#20195;&#22120;&#36866;&#37197;&#22120;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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