108 lines
5.7 KiB
HTML
108 lines
5.7 KiB
HTML
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<title>std::end(std::initializer_list)</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_utility_initializer_list_end2 skin-cppreference2 action-view cpp-navbar">
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>end<small>(std::initializer_list)</small></h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-utility.html">utility</a>‎ | <a href="cpp-utility-initializer_list.html">initializer list</a></span></div>
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<div>定义于头文件 <code><a href="cpp-header-initializer_list.html"><initializer_list></a></code></div>
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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> E <span class="sy1">></span><br />
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<span class="kw4">const</span> E<span class="sy2">*</span> end<span class="br0">(</span> <a href="cpp-utility-initializer_list.html"><span class="kw960">std::<span class="me2">initializer_list</span></span></a><span class="sy1"><</span>E<span class="sy1">></span> il <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 起)</span><br />
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<span class="t-mark-rev t-until-cxx14">(C++14 前)</span></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> E <span class="sy1">></span><br />
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<span class="kw4">constexpr</span> <span class="kw4">const</span> E<span class="sy2">*</span> end<span class="br0">(</span> <a href="cpp-utility-initializer_list.html"><span class="kw960">std::<span class="me2">initializer_list</span></span></a><span class="sy1"><</span>E<span class="sy1">></span> il <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx14">(C++14 起)</span></td>
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<p><span class="t-lc"><a href="cpp-iterator-end.html">std::end</a></span> 对 <code>initializer_list</code> 的重载返回指向 <code>il</code> 末元素后一位置的指针。</p>
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<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
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<table class="t-par-begin">
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<td>il</td>
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<td>-</td>
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<td><code>initializer_list</code></td>
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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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<p><span class="t-c"><span class="mw-geshi cpp source-cpp">il.<span class="me1">end</span><span class="br0">(</span><span class="br0">)</span></span></span></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="cpp source-cpp">
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<pre class="de1"><span class="co2">#include <iostream></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>
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<span class="co1">// 基于范围的 for 用 std::begin 和 std::end 迭代给定范围；</span>
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<span class="co1">// 此情况下，它是一个 initializer_list</span>
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<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">int</span> i <span class="sy4">:</span> <span class="br0">{</span><span class="nu0">3</span>, <span class="nu0">1</span>, <span class="nu0">4</span>, <span class="nu0">1</span><span class="br0">}</span><span class="br0">)</span> <span class="br0">{</span>
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<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> i <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
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<span class="br0">}</span>
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<span class="br0">}</span></pre></div>
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<p>输出：</p>
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<div class="text source-text">
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<pre class="de1">3
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1
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4
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1</pre></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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<div><a href="cpp-utility-initializer_list-end.html"><span class="t-lines"><span>end</span></span></a></div>
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<td>返回指向末元素后一位置的指针<br />
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<span class="t-mark">(公开成员函数)</span></td>
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