241 lines
12 KiB
HTML
241 lines
12 KiB
HTML
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<title>std::reverse_iterator<Iter>::operator++,+,+=,--,-,-=</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::reverse_iterator<Iter>::</span>operator++,+,+=,--,-,-=</h1>
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<div id="bodyContent">
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-iterator.html">iterator</a>‎ | <a href="cpp-iterator-reverse_iterator.html">reverse iterator</a></span></div>
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<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
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<div class="t-page-template" style="">
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<p></p>
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<table class="t-dcl-begin">
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<td></td>
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<td rowspan="142">(1)</td>
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<tr class="t-dcl t-until-cxx17">
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<td>
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<div><span class="mw-geshi cpp source-cpp">reverse_iterator<span class="sy3">&</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-until-cxx17">(C++17 前)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx17">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> reverse_iterator<span class="sy3">&</span> operator<span class="sy2">++</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></td>
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</tbody>
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<tbody></tbody>
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<tbody class="t-dcl-rev t-dcl-rev-num">
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<td rowspan="142">(2)</td>
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<td></td>
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<tr class="t-dcl t-until-cxx17">
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<td>
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<div><span class="mw-geshi cpp source-cpp">reverse_iterator<span class="sy3">&</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-until-cxx17">(C++17 前)</span></td>
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<tr class="t-dcl t-since-cxx17">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> reverse_iterator<span class="sy3">&</span> operator<span class="sy2">--</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></td>
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</tr>
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</tbody>
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<tbody></tbody>
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<tbody class="t-dcl-rev t-dcl-rev-num">
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<td rowspan="142">(3)</td>
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<td></td>
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<tr class="t-dcl t-until-cxx17">
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<td>
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<div><span class="mw-geshi cpp source-cpp">reverse_iterator operator<span class="sy2">++</span><span class="br0">(</span> <span class="kw4">int</span> <span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-until-cxx17">(C++17 前)</span></td>
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<tr class="t-dcl t-since-cxx17">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> reverse_iterator operator<span class="sy2">++</span><span class="br0">(</span> <span class="kw4">int</span> <span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></td>
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</tbody>
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<tbody></tbody>
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<tbody class="t-dcl-rev t-dcl-rev-num">
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<td></td>
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<td rowspan="142">(4)</td>
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<td></td>
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<tr class="t-dcl t-until-cxx17">
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<td>
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<div><span class="mw-geshi cpp source-cpp">reverse_iterator operator<span class="sy2">--</span><span class="br0">(</span> <span class="kw4">int</span> <span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-until-cxx17">(C++17 前)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx17">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> reverse_iterator operator<span class="sy2">--</span><span class="br0">(</span> <span class="kw4">int</span> <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></td>
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<tbody></tbody>
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<td rowspan="142">(5)</td>
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<tr class="t-dcl t-until-cxx17">
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<div><span class="mw-geshi cpp source-cpp">reverse_iterator operator<span class="sy2">+</span><span class="br0">(</span> difference_type n <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-until-cxx17">(C++17 前)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx17">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> reverse_iterator operator<span class="sy2">+</span><span class="br0">(</span> difference_type n <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></td>
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</tr>
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</tbody>
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<tbody></tbody>
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<tbody class="t-dcl-rev t-dcl-rev-num">
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<td rowspan="142">(6)</td>
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<div><span class="mw-geshi cpp source-cpp">reverse_iterator operator<span class="sy2">-</span><span class="br0">(</span> difference_type n <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-until-cxx17">(C++17 前)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx17">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> reverse_iterator operator<span class="sy2">-</span><span class="br0">(</span> difference_type n <span class="br0">)</span> <span class="kw4">const</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></td>
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</tr>
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</tbody>
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<tbody></tbody>
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<tbody class="t-dcl-rev t-dcl-rev-num">
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<td></td>
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<td rowspan="142">(7)</td>
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<tr class="t-dcl t-until-cxx17">
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<div><span class="mw-geshi cpp source-cpp">reverse_iterator<span class="sy3">&</span> operator<span class="sy2">+</span><span class="sy1">=</span><span class="br0">(</span> difference_type n <span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-until-cxx17">(C++17 前)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx17">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> reverse_iterator<span class="sy3">&</span> operator<span class="sy2">+</span><span class="sy1">=</span><span class="br0">(</span> difference_type n <span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></td>
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</tr>
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</tbody>
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<tbody></tbody>
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<tbody class="t-dcl-rev t-dcl-rev-num">
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<td rowspan="142">(8)</td>
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<td></td>
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<tr class="t-dcl t-until-cxx17">
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<td>
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<div><span class="mw-geshi cpp source-cpp">reverse_iterator<span class="sy3">&</span> operator<span class="sy2">-</span><span class="sy1">=</span><span class="br0">(</span> difference_type n <span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-until-cxx17">(C++17 前)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx17">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> reverse_iterator<span class="sy3">&</span> operator<span class="sy2">-</span><span class="sy1">=</span><span class="br0">(</span> difference_type n <span class="br0">)</span><span class="sy4">;</span></span></div>
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx17">(C++17 起)</span></td>
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</tr>
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</tbody>
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<tbody>
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<tr class="t-dcl-sep">
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<td></td>
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<td></td>
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<td></td>
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<p>自增或自减迭代器。应用逆运算到底层迭代器，因为逆序。</p>
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<div class="t-li1"><span class="t-li">1-2)</span> 分别前自增或前自减一。</div>
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<div class="t-li1"><span class="t-li">3-4)</span> 分别后自增或后自减一。</div>
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<div class="t-li1"><span class="t-li">5-6)</span> 分别返回前进 <code>n</code> 或 <code>-n</code> 个位置的迭代器。</div>
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<div class="t-li1"><span class="t-li">7-8)</span> 分别令迭代器前进 <code>n</code> 或 <code>-n</code> 个位置。</div>
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<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">返回值</span></h3>
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<div class="t-li1"><span class="t-li">1-2)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>this</span></span></div>
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<div class="t-li1"><span class="t-li">3-4)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>this</span></span> 修改前的副本。</div>
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<div class="t-li1"><span class="t-li">5-6)</span> 分别为 <span class="t-c"><span class="mw-geshi cpp source-cpp">reverse_iterator<span class="br0">(</span>base<span class="br0">(</span><span class="br0">)</span><span class="sy2">-</span>n<span class="br0">)</span></span></span> 或 <span class="t-c"><span class="mw-geshi cpp source-cpp">reverse_iterator<span class="br0">(</span>base<span class="br0">(</span><span class="br0">)</span><span class="sy2">+</span>n<span class="br0">)</span></span></span> 。</div>
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<div class="t-li1"><span class="t-li">7-8)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>this</span></span></div>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
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<table class="metadata plainlinks ambox mbox-small-left ambox-notice" style="">
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<tr>
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<td class="mbox-empty-cell"></td>
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<td class="mbox-text" style="">本节未完成<br />
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原因：暂无示例</td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc">
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<td>
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<div class="t-dsc-member-div">
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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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</div>
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</td>
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<td>令迭代器前进<br />
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<span class="t-mark">(函数模板)</span></td>
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</tr>
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</table>
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</div>
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<div class="visualClear"></div>
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</div>
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</div>
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