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<title>std::array&lt;T,N&gt;::end, std::array&lt;T,N&gt;::cend</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::array&lt;T,N&gt;::</span>end, <span style="font-size:0.7em; line-height:130%">std::array&lt;T,N&gt;::</span>cend</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-container.html">container</a>&lrm; | <a href="cpp-container-array.html">array</a></span></div>
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<div><span class="mw-geshi cpp source-cpp">iterator end<span class="br0">(</span><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-until-cxx17">(C++17 &#21069;)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> iterator end<span class="br0">(</span><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-cxx17">(C++17 &#36215;)</span></td>
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<div><span class="mw-geshi cpp source-cpp">const_iterator end<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</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> const_iterator end<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</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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<div><span class="mw-geshi cpp source-cpp">const_iterator cend<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw4">constexpr</span> const_iterator cend<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</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>&#36820;&#22238;&#25351;&#21521; <code>array</code> &#26411;&#20803;&#32032;&#21518;&#19968;&#20803;&#32032;&#30340;&#36845;&#20195;&#22120;&#12290;</p>
<p>&#27492;&#20803;&#32032;&#34920;&#29616;&#20026;&#21344;&#20301;&#31526;&#65307;&#35797;&#22270;&#35775;&#38382;&#23427;&#23548;&#33268;&#26410;&#23450;&#20041;&#34892;&#20026;&#12290;</p>
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<p><img alt="range-begin-end.svg" src="range-begin-end.svg" width="546" height="157" /></p>
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<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
<p>&#65288;&#26080;&#65289;</p>
<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">&#36820;&#22238;&#20540;</span></h3>
<p>&#25351;&#21521;&#21518;&#38543;&#26368;&#21518;&#20803;&#32032;&#30340;&#36845;&#20195;&#22120;&#12290;</p>
<h3><span class="mw-headline" id=".E5.A4.8D.E6.9D.82.E5.BA.A6">&#22797;&#26434;&#24230;</span></h3>
<p>&#24120;&#25968;&#12290;</p>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">&#31034;&#20363;</span></h3>
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<pre class="de1"><span class="co2">#include &lt;array&gt;</span>
<span class="co2">#include &lt;iostream&gt;</span>
<span class="co2">#include &lt;algorithm&gt;</span>
<span class="co2">#include &lt;iomanip&gt;</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <a href="cpp-io-manip-boolalpha.html"><span class="kw1764">std::<span class="me2">boolalpha</span></span></a><span class="sy4">;</span>
<a href="cpp-container-array.html"><span class="kw1268">std::<span class="me2">array</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span>, <span class="nu0">0</span><span class="sy1">&gt;</span> empty<span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;1) &quot;</span>
<span class="sy1">&lt;&lt;</span> <span class="br0">(</span>empty.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">==</span> empty.<span class="me1">end</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span> <span class="co1">// true</span>
<span class="sy1">&lt;&lt;</span> <span class="br0">(</span>empty.<span class="me1">cbegin</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">==</span> empty.<span class="me1">cend</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span> <span class="co1">// true</span>
<span class="co1">// *(empty.begin()) = 42; // =&gt; &#36816;&#34892;&#26102;&#30340;&#26410;&#23450;&#20041;&#34892;&#20026;</span>
<a href="cpp-container-array.html"><span class="kw1268">std::<span class="me2">array</span></span></a><span class="sy1">&lt;</span><span class="kw4">int</span>, <span class="nu0">4</span><span class="sy1">&gt;</span> numbers<span class="br0">{</span><span class="nu0">5</span>, <span class="nu0">2</span>, <span class="nu0">3</span>, <span class="nu0">4</span><span class="br0">}</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;2) &quot;</span>
<span class="sy1">&lt;&lt;</span> <span class="br0">(</span>numbers.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">==</span> numbers.<span class="me1">end</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span> <span class="co1">// false</span>
<span class="sy1">&lt;&lt;</span> <span class="br0">(</span>numbers.<span class="me1">cbegin</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">==</span> numbers.<span class="me1">cend</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span> <span class="co1">// false</span>
<span class="sy1">&lt;&lt;</span> <span class="st0">&quot;3) &quot;</span>
<span class="sy1">&lt;&lt;</span> <span class="sy2">*</span><span class="br0">(</span>numbers.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span> <span class="co1">// 5</span>
<span class="sy1">&lt;&lt;</span> <span class="sy2">*</span><span class="br0">(</span>numbers.<span class="me1">cbegin</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span> <span class="co1">// 5</span>
<span class="sy2">*</span>numbers.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">=</span> <span class="nu0">1</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;4) &quot;</span> <span class="sy1">&lt;&lt;</span> <span class="sy2">*</span><span class="br0">(</span>numbers.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span> <span class="co1">// 1</span>
<span class="co1">// *(numbers.cbegin()) = 42; // &#32534;&#35793;&#26102;&#38169;&#35823;&#65306;</span>
<span class="co1">// &#21482;&#35835;&#21464;&#37327;&#19981;&#21487;&#36171;&#20540;</span>
<span class="co1">// &#25171;&#21360;&#25152;&#26377;&#20803;&#32032;</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;5) &quot;</span><span class="sy4">;</span>
<a href="cpp-algorithm-for_each.html"><span class="kw1568">std::<span class="me2">for_each</span></span></a><span class="br0">(</span>numbers.<span class="me1">cbegin</span><span class="br0">(</span><span class="br0">)</span>, numbers.<span class="me1">cend</span><span class="br0">(</span><span class="br0">)</span>, <span class="br0">[</span><span class="br0">]</span><span class="br0">(</span><span class="kw4">int</span> x<span class="br0">)</span> <span class="br0">{</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> x <span class="sy1">&lt;&lt;</span> <span class="st0">&#39; &#39;</span><span class="sy4">;</span>
<span class="br0">}</span><span class="br0">)</span><span class="sy4">;</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<span class="kw4">constexpr</span> <a href="cpp-container-array.html"><span class="kw1268">std::<span class="me2">array</span></span></a> constants<span class="br0">{</span><span class="st0">&#39;A&#39;</span>, <span class="st0">&#39;B&#39;</span>, <span class="st0">&#39;C&#39;</span><span class="br0">}</span><span class="sy4">;</span>
static_assert<span class="br0">(</span>constants.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span> <span class="sy3">!</span><span class="sy1">=</span> constants.<span class="me1">end</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span> <span class="co1">// OK</span>
static_assert<span class="br0">(</span>constants.<span class="me1">cbegin</span><span class="br0">(</span><span class="br0">)</span> <span class="sy3">!</span><span class="sy1">=</span> constants.<span class="me1">cend</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span> <span class="co1">// OK</span>
static_assert<span class="br0">(</span><span class="sy2">*</span>constants.<span class="me1">begin</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">==</span> <span class="st0">&#39;A&#39;</span><span class="br0">)</span><span class="sy4">;</span> <span class="co1">// OK</span>
static_assert<span class="br0">(</span><span class="sy2">*</span>constants.<span class="me1">cbegin</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">==</span> <span class="st0">&#39;A&#39;</span><span class="br0">)</span><span class="sy4">;</span> <span class="co1">// OK</span>
<span class="co1">// *constants.begin() = &#39;Z&#39;; // &#32534;&#35793;&#26102;&#38169;&#35823;&#65306; </span>
<span class="co1">// &#21482;&#35835;&#21464;&#37327;&#19981;&#21487;&#36171;&#20540;</span>
<span class="br0">}</span></pre></div>
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<p>&#36755;&#20986;&#65306;</p>
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<pre class="de1">1) true true
2) false false
3) 5 5
4) 1
5) 1 2 3 4</pre></div>
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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-container-array-begin.html"><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></div>
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<td>&#36820;&#22238;&#25351;&#21521;&#36215;&#22987;&#30340;&#36845;&#20195;&#22120;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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