369 lines
26 KiB
HTML
369 lines
26 KiB
HTML
<!DOCTYPE html>
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<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
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<head><meta http-equiv="x-ua-compatible" content="ie=edge">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>std::reverse_iterator</title>
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<link rel="stylesheet" href="ext.css" />
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<link rel="stylesheet" href="site_modules.css" />
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_iterator_reverse_iterator skin-cppreference2 action-view cpp-navbar">
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<div id="cpp-content-base">
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<div id="content"><a id="top"></a>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>reverse_iterator</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></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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<table class="t-dcl-begin">
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<td>
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<div>定义于头文件 <code><a href="cpp-header-iterator.html"><iterator></a></code></div>
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<td></td>
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<td></td>
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<tbody class="t-dcl-rev">
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<tr class="t-dcl t-until-cxx17">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Iter <span class="sy1">></span><br /></span>
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<p><span class="kw1">class</span> reverse_iterator <span class="sy4">:</span> <span class="kw1">public</span> <a href="cpp-iterator-iterator.html"><span class="kw657">std::<span class="me2">iterator</span></span></a><span class="sy1"><</span><br />
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<span class="kw1">typename</span> <a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">iterator_category</span>,<br />
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<span class="kw1">typename</span> <a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span>,<br />
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<span class="kw1">typename</span> <a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">difference_type</span>,<br />
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<span class="kw1">typename</span> <a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">pointer</span>,<br /></p>
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<span class="kw1">typename</span> <a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">reference</span> <span class="sy1">></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="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Iter <span class="sy1">></span><br />
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<span class="kw1">class</span> reverse_iterator<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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<tr class="t-dcl-sep">
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<td></td>
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<p><code>std::reverse_iterator</code> 是一个反转给定必须至少是<a href="cpp-named_req-BidirectionalIterator.html"><span style="font-style:italic">老式双向迭代器</span> <span style="font-family: Georgia, 'DejaVu Serif', serif; font-style:italic">(LegacyBidirectionalIterator)</span></a> <span class="t-rev-inl t-since-cxx20"><span>或实现 <a href="cpp-iterator-bidirectional_iterator.html"><code>bidirectional_iterator</code></a></span> <span><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></span></span>的迭代器方向的适配器。换言之，提供双向迭代器时， <code>std::reverse_iterator</code> 产生一个新的迭代器，它从底层的双向迭代器所定义的序列的末尾移动到开端。</p>
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<p>对于从迭代器 <code>i</code> 构造的 <code>r</code> 逆向迭代器，关系 <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> 始终为 true （只要 <code>r</code> 可解引用）；从而构造自末尾后一位置的迭代器的逆向迭代器解引用到序列的最后元素。</p>
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<p>这是标准库容器的成员函数 <code>rbegin()</code> 及 <code>rend()</code> 所返回的迭代器。</p>
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<div class="t-image">
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<p><img alt="range-rbegin-rend.svg" src="range-rbegin-rend.svg" width="589" height="250" /></p>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E7.B1.BB.E5.9E.8B">成员类型</span></h3>
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<table class="t-dsc-begin">
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<td>成员类型</td>
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<td>定义</td>
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<tr class="t-dsc">
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<td><code>iterator_type</code></td>
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<td><code>Iter</code></td>
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<tr class="t-dsc">
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<td><code>iterator_concept</code><span class="t-mark-rev t-since-cxx20">(C++20)</span></td>
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<td>若 <code>Iter</code> 实现 <span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">random_access_iterator</span></span></span> ，则为 <span class="t-lc"><a href="cpp-iterator-iterator_tags.html">std::random_access_iterator_tag</a></span> 。否则为 <span class="t-lc"><a href="cpp-iterator-iterator_tags.html">std::bidirectional_iterator_tag</a></span></td>
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</tr>
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<tr class="t-dsc">
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<td><code>iterator_category</code></td>
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<td>
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<table class="t-rev-begin">
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<tr class="t-rev t-until-cxx20">
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<p><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">iterator_category</span></span></span></p>
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</td>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
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</tr>
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<tr class="t-rev t-since-cxx20">
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<td>
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<p>若 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">iterator_category</span></span></span> 实现 <span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">derived_from</span><span class="sy1"><</span><a href="cpp-iterator-iterator_tags.html"><span class="kw656">std::<span class="me2">random_access_iterator_tag</span></span></a><span class="sy1">></span></span></span> ，则为 <span class="t-lc"><a href="cpp-iterator-iterator_tags.html">std::random_access_iterator_tag</a></span> 。否则为不更改的 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">iterator_category</span></span></span></p>
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</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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</table>
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</td>
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<tr class="t-dsc">
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<td><code>value_type</code></td>
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<td>
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<table class="t-rev-begin">
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<tr class="t-rev t-until-cxx20">
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<td>
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<p><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span></span></span></p>
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</td>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
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</tr>
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<tr class="t-rev t-since-cxx20">
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<td>
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<p><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">iter_value_t</span><span class="sy1"><</span>Iter<span class="sy1">></span></span></span></p>
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</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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</table>
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</td>
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</tr>
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<tr class="t-dsc">
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<td><code>difference_type</code></td>
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<td>
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<table class="t-rev-begin">
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<tr class="t-rev t-until-cxx20">
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<td>
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<p><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">difference_type</span></span></span></p>
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</td>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
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</tr>
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<tr class="t-rev t-since-cxx20">
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<td>
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<p><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">iter_difference_t</span><span class="sy1"><</span>Iter<span class="sy1">></span></span></span></p>
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</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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</table>
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</td>
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</tr>
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<tr class="t-dsc">
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<td><code>pointer</code></td>
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<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">pointer</span></span></span></td>
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</tr>
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<tr class="t-dsc">
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<td><code>reference</code></td>
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<td>
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<table class="t-rev-begin">
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<tr class="t-rev t-until-cxx20">
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<td>
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<p><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">reference</span></span></span></p>
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</td>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
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</tr>
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<tr class="t-rev t-since-cxx20">
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<td>
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<p><span class="t-c"><span class="mw-geshi cpp source-cpp">std<span class="sy4">::</span><span class="me2">iter_reference_t</span><span class="sy1"><</span>Iter<span class="sy1">></span></span></span></p>
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</td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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</table>
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</td>
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</tr>
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</table>
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<table class="t-rev-begin">
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<tr class="t-rev t-until-cxx17">
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<td>
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<p>要求通过从 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-iterator-iterator.html"><span class="kw657">std::<span class="me2">iterator</span></span></a><span class="sy1"><</span><a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">iterator_category</span><br />
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, <a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span><br />
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, <a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">difference_type</span><br />
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, <a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">pointer</span><br />
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, <a href="cpp-iterator-iterator_traits.html"><span class="kw651">std::<span class="me2">iterator_traits</span></span></a><span class="sy1"><</span>Iter<span class="sy1">></span><span class="sy4">::</span><span class="me2">reference</span><br />
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<span class="sy1">></span></span></span> 继承获得成员类型 <code>iterator_category</code> 、 <code>value_type</code> 、 <code>difference_type</code> 、 <code>pointer</code> 及 <code>reference</code> 。</p>
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</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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</table>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">成员函数</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 t-dsc-member-nobold-div">
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<div><a href="cpp-iterator-reverse_iterator-reverse_iterator.html"><span class="t-lines"><span>(构造函数)</span></span></a></div>
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</div>
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</td>
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<td>构造新的迭代器适配器<br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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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>赋值另一迭代器适配器<br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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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-base.html"><span class="t-lines"><span>base</span></span></a></div>
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</div>
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</td>
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<td>访问底层迭代器<br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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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>operator-></span></span></a></div>
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</div>
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</td>
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<td>访问被指向的元素<br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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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_at.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>按索引访问元素<br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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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_arith.html"><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>
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</div>
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</td>
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<td>推进或回退迭代器<br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.AF.B9.E8.B1.A1">成员对象</span></h3>
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<table class="t-dsc-begin">
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<tr class="t-dsc-hitem">
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<td>成员名称</td>
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<td>定义</td>
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</tr>
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<tr class="t-dsc">
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<td><code>current</code> <span class="t-mark">(受保护成员对象)</span></td>
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<td><a href="cpp-iterator-reverse_iterator-base.html"><code>base()</code></a> 返回其副本的底层迭代器</td>
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</tr>
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</table>
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<h3><span class="mw-headline" id=".E9.9D.9E.E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">非成员函数</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-make_reverse_iterator.html"><span class="t-lines"><span>make_reverse_iterator</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx14">(C++14)</span></span></span></div>
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</div>
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</td>
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<td>创建拥有从实参推出的类型的 <span class="t-lc"><strong class="selflink">std::reverse_iterator</strong></span><br />
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<span class="t-mark">(函数模板)</span></td>
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</tr>
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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_cmp.html"><span class="t-lines"><span>operator==</span><span>operator!=</span><span>operator<</span><span>operator<=</span><span>operator></span><span>operator>=</span><span>operator<=></span></span></a></div>
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<div><span class="t-lines"><span></span><span></span><span></span><span></span><span></span><span></span><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
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</div>
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</td>
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<td>比较底层迭代器<br />
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<span class="t-mark">(函数模板)</span></td>
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</tr>
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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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<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>计算两个迭代器适配器间的距离<br />
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<span class="t-mark">(函数模板)</span></td>
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</tr>
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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-iter_move.html"><span class="t-lines"><span>iter_move</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
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</div>
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</td>
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<td>转型解引用调整后的底层迭代器的结果为其所关联的右值引用类型<br />
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<span class="t-mark">(函数)</span></td>
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</tr>
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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-iter_swap.html"><span class="t-lines"><span>iter_swap</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
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</div>
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</td>
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<td>交换二个调整后的底层迭代器所指向的对象<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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<h3><span class="mw-headline" id=".E8.BE.85.E5.8A.A9.E6.A8.A1.E6.9D.BF">辅助模板</span></h3>
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<table class="t-dcl-begin">
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<tbody>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> Iterator1, <span class="kw1">class</span> Iterator2 <span class="sy1">></span><br /></span>
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<p> requires <span class="br0">(</span><span class="sy3">!</span>std<span class="sy4">::</span><span class="me2">sized_sentinal_for</span><span class="sy1"><</span>Iterator1, Iterator2<span class="sy1">></span><span class="br0">)</span><br />
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<span class="kw1">inline</span> <span class="kw4">constexpr</span> <span class="kw4">bool</span> disable_sized_sentinel_for<span class="sy1"><</span><br />
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std<span class="sy4">::</span><span class="me2">reverse_iterator</span><span class="sy1"><</span>Iterator1<span class="sy1">></span>,<br /></p>
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std<span class="sy4">::</span><span class="me2">reverse_iterator</span><span class="sy1"><</span>Iterator2<span class="sy1">>></span> <span class="sy1">=</span> <span class="kw2">true</span><span class="sy4">;</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-cxx20">(C++20 起)</span></td>
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</tr>
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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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</tr>
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</tbody>
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</table>
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<p>若 <code>reverse_iterator</code> 的特化的底层迭代器不满足 <a href="cpp-iterator-sized_sentinel_for.html"><code>sized_sentinel_for</code></a> ，则 <code>std::disable_sentinel_for</code> 的此偏特化阻止这些特化满足该概念。</p>
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<h3><span class="mw-headline" id=".E6.B3.A8.E8.A7.A3">注解</span></h3>
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<p><code>std::reverse_iterator</code> 不可作用于解引用返回到 <code>*this</code> 成员的迭代器（是谓“贮藏迭代器”）。贮藏迭代器的一个例子是 <a href="cpp-filesystem-path.html#.E6.88.90.E5.91.98.E7.B1.BB.E5.9E.8B.E4.B8.8E.E5.B8.B8.E9.87.8F"><tt>std::filesystem::path::iterator</tt></a> 。</p>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
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<div class="t-example">
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<div class="t-example-live-link"></div>
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<div dir="ltr" class="mw-geshi" style="text-align: left;">
|
|
<div class="cpp source-cpp">
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<pre class="de1"><span class="co2">#include <iostream></span>
|
|
<span class="co2">#include <string></span>
|
|
<span class="co2">#include <iterator></span>
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|
|
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
|
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<span class="br0">{</span>
|
|
<a href="cpp-string-basic_string.html"><span class="kw1229">std::<span class="me2">string</span></span></a> s <span class="sy1">=</span> <span class="st0">"Hello, world"</span><span class="sy4">;</span>
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|
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>
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|
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">// 以 'O' 替换 'o'</span>
|
|
r <span class="sy2">+</span><span class="sy1">=</span> <span class="nu0">7</span><span class="sy4">;</span> <span class="co1">// 迭代器现在指向 'O'</span>
|
|
<a href="cpp-string-basic_string.html"><span class="kw1229">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="cpp-io-cout.html"><span class="kw1757">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>输出：</p>
|
|
<div dir="ltr" class="mw-geshi" style="text-align: left;">
|
|
<div class="text source-text">
|
|
<pre class="de1">OlleH</pre></div>
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</div>
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</div>
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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-iterator.html"><span class="t-lines"><span>iterator</span></span></a></div>
|
|
<div><span class="t-lines"><span><span class="t-mark-rev t-deprecated-cxx17">(C++17 中弃用)</span></span></span></div>
|
|
</div>
|
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</td>
|
|
<td>用于简化简单的迭代器的必要类型定义的基类<br />
|
|
<span class="t-mark">(类模板)</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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</div>
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</body>
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</html>
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