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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::ranges::</span>uninitialized_copy, <span style="font-size:0.7em; line-height:130%">std::ranges::</span>uninitialized_copy_result</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-memory.html">memory</a></span></div>
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<div>&#23450;&#20041;&#20110;&#22836;&#25991;&#20214; <code><a href="cpp-header-memory.html">&lt;memory&gt;</a></code></div>
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<div>&#35843;&#29992;&#31614;&#21517;</div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> std<span class="sy4">::</span><span class="me2">input_iterator</span> I, std<span class="sy4">::</span><span class="me2">sentinel_for</span><span class="sy1">&lt;</span>I<span class="sy1">&gt;</span> S1,<br /></span>
<p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; no<span class="sy2">-</span>throw<span class="sy2">-</span>forward<span class="sy2">-</span>iterator O, no<span class="sy2">-</span>throw<span class="sy2">-</span>sentinel<span class="sy2">-</span><span class="kw1">for</span><span class="sy1">&lt;</span>O<span class="sy1">&gt;</span> S2 <span class="sy1">&gt;</span><br />
requires &nbsp;std<span class="sy4">::</span><span class="me2">constructible_from</span><span class="sy1">&lt;</span>std<span class="sy4">::</span><span class="me2">iter_value_t</span><span class="sy1">&lt;</span>O<span class="sy1">&gt;</span>, std<span class="sy4">::</span><span class="me2">iter_reference_t</span><span class="sy1">&lt;</span>I<span class="sy1">&gt;&gt;</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; uninitialized_copy_result<span class="sy1">&lt;</span>I, O<span class="sy1">&gt;</span><br /></p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; uninitialized_copy<span class="br0">(</span> I ifirst, S1 ilast, O ofirst, S2 olast <span class="br0">)</span><span class="sy4">;</span></div>
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<td>(1)</td>
<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span> ranges<span class="sy4">::</span><span class="me2">input_range</span> IR, no<span class="sy2">-</span>throw<span class="sy2">-</span>forward<span class="sy2">-</span>range OR <span class="sy1">&gt;</span><br /></span>
<p>requires &nbsp;std<span class="sy4">::</span><span class="me2">constructible_from</span><span class="sy1">&lt;</span>ranges<span class="sy4">::</span><span class="me2">range_value_t</span><span class="sy1">&lt;</span>OR<span class="sy1">&gt;</span>,<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ranges<span class="sy4">::</span><span class="me2">range_reference_t</span><span class="sy1">&lt;</span>IR<span class="sy1">&gt;&gt;</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; uninitialized_copy_result<span class="sy1">&lt;</span>ranges<span class="sy4">::</span><span class="me2">borrowed_iterator_t</span><span class="sy1">&lt;</span>IR<span class="sy1">&gt;</span>,<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ranges<span class="sy4">::</span><span class="me2">borrowed_iterator_t</span><span class="sy1">&lt;</span>OR<span class="sy1">&gt;&gt;</span><br /></p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; uninitialized_copy<span class="br0">(</span> IR<span class="sy3">&amp;&amp;</span> in_range, OR<span class="sy3">&amp;&amp;</span> out_range <span class="br0">)</span><span class="sy4">;</span></div>
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<td>(2)</td>
<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
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<div>&#36741;&#21161;&#31867;&#22411;</div>
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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> I, <span class="kw1">class</span> O<span class="sy1">&gt;</span><br />
<span class="kw1">using</span> uninitialized_copy_result <span class="sy1">=</span> ranges<span class="sy4">::</span><span class="me2">in_out_result</span><span class="sy1">&lt;</span>I, O<span class="sy1">&gt;</span><span class="sy4">;</span></span></div>
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<td>(3)</td>
<td><span class="t-mark-rev t-since-cxx20">(C++20 &#36215;)</span></td>
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<div class="t-li1"><span class="t-li">1)</span> &#20196; <span class="mjax" style="display:none">\(\scriptsize N\)</span><span class="mjax-fallback texhtml" style="white-space: nowrap;">N</span> &#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp">ranges<span class="sy4">::</span><span class="me2">min</span><span class="br0">(</span>ranges<span class="sy4">::</span><span class="me2">distance</span><span class="br0">(</span>ifirst, ilast<span class="br0">)</span>, ranges<span class="sy4">::</span><span class="me2">distance</span><span class="br0">(</span>ofirst, olast<span class="br0">)</span><span class="br0">)</span></span></span> &#65292;&#22312;&#20316;&#20026;&#26410;&#21021;&#22987;&#21270;&#20869;&#23384;&#21306;&#22495;&#30340;&#36755;&#20986;&#33539;&#22260; <code>[ofirst, olast)</code> &#20013;&#65292;&#20197;&#36755;&#20837;&#33539;&#22260; <code>[ifirst, ilast)</code> &#20013;&#30340;&#20803;&#32032;&#20026;&#26469;&#28304;&#26500;&#36896; <span class="mjax" style="display:none">\(\scriptsize N\)</span><span class="mjax-fallback texhtml" style="white-space: nowrap;">N</span> &#20010;&#20803;&#32032;&#12290;</div>
<div class="t-li1"><span class="t-li"></span> &#36755;&#20837;&#19982;&#36755;&#20986;&#33539;&#22260;&#24517;&#39035;&#19981;&#37325;&#21472;&#12290;</div>
<div class="t-li1"><span class="t-li"></span> &#33509;&#22312;&#21021;&#22987;&#21270;&#26102;&#25243;&#24322;&#24120;&#65292;&#21017;&#20197;&#26410;&#25351;&#23450;&#39034;&#24207;&#38144;&#27585;&#24050;&#26500;&#36896;&#30340;&#20803;&#32032;&#12290;</div>
<div class="t-li1"><span class="t-li"></span> &#20989;&#25968;&#25317;&#26377;&#30340;&#25928;&#26524;&#31561;&#20215;&#20110;&#65306;
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="cpp source-cpp">
<pre class="de1"><span class="kw1">for</span> <span class="br0">(</span><span class="sy4">;</span> <span class="sy3">!</span><span class="br0">(</span>ifirst <span class="sy1">==</span> ilast <span class="sy3">||</span> ofirst <span class="sy1">==</span> olast<span class="br0">)</span><span class="sy4">;</span> <span class="sy2">++</span>ofirst, <span class="sy2">++</span>ifirst<span class="br0">)</span> <span class="br0">{</span>
<span class="sy4">::</span><span class="me2">new</span> <span class="br0">(</span><span class="kw1">const_cast</span><span class="sy1">&lt;</span><span class="kw4">void</span><span class="sy2">*</span><span class="sy1">&gt;</span><span class="br0">(</span><span class="kw1">static_cast</span><span class="sy1">&lt;</span><span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw4">void</span><span class="sy2">*</span><span class="sy1">&gt;</span><span class="br0">(</span><a href="cpp-memory-addressof.html"><span class="kw757">std::<span class="me2">addressof</span></span></a><span class="br0">(</span><span class="sy2">*</span>ofirst<span class="br0">)</span><span class="br0">)</span><span class="br0">)</span><span class="br0">)</span>
<a href="cpp-types-remove_reference.html"><span class="kw607">std::<span class="me2">remove_reference_t</span></span></a><span class="sy1">&lt;</span>std<span class="sy4">::</span><span class="me2">iter_reference_t</span><span class="sy1">&lt;</span>O<span class="sy1">&gt;&gt;</span><span class="br0">(</span><span class="sy2">*</span>ifirst<span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
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<div class="t-li1"><span class="t-li">2)</span> &#21516; <span class="t-v">(1)</span> &#65292;&#20294;&#20197; <code>in_range</code> &#20026;&#31532;&#19968;&#33539;&#22260;&#24182;&#20197; <code>out_range</code> &#20026;&#31532;&#20108;&#33539;&#22260;&#65292;&#22914;&#21516;&#20197; <span class="t-c"><span class="mw-geshi cpp source-cpp">ranges<span class="sy4">::</span><span class="me2">begin</span><span class="br0">(</span>in_range<span class="br0">)</span></span></span> &#20026; <code>ifirst</code> &#65292;&#20197; <span class="t-c"><span class="mw-geshi cpp source-cpp">ranges<span class="sy4">::</span><span class="me2">end</span><span class="br0">(</span>in_range<span class="br0">)</span></span></span> &#20026; <code>ilast</code> &#65292;&#20197; <span class="t-c"><span class="mw-geshi cpp source-cpp">ranges<span class="sy4">::</span><span class="me2">begin</span><span class="br0">(</span>out_range<span class="br0">)</span></span></span> &#20026; <code>ofirst</code> &#65292;&#24182;&#20197; <span class="t-c"><span class="mw-geshi cpp source-cpp">ranges<span class="sy4">::</span><span class="me2">end</span><span class="br0">(</span>out_range<span class="br0">)</span></span></span> &#20026; <code>olast</code> &#12290;</div>
<p>&#27492;&#39029;&#38754;&#19978;&#25551;&#36848;&#30340;&#20223;&#20989;&#25968;&#23454;&#20307;&#26159; <i>niebloid</i> &#65292;&#21363;&#65306;</p>
<ul>
<li>&#35843;&#29992;&#23427;&#20204;&#20013;&#30340;&#20219;&#20309;&#19968;&#32773;&#26102;&#19981;&#21487;&#25351;&#23450;&#26174;&#24335;&#27169;&#26495;&#23454;&#21442;&#12290;</li>
<li>&#23427;&#20204;&#26080;&#19968;&#23545;<a href="cpp-language-adl.html">&#23454;&#21442;&#20381;&#36182;&#26597;&#25214;</a>&#21487;&#35265;&#12290;</li>
<li>&#22312;<a href="cpp-language-unqualified_lookup.html">&#36890;&#24120;&#26080;&#38480;&#23450;&#26597;&#25214;</a>&#23547;&#25214;&#20989;&#25968;&#35843;&#29992;&#36816;&#31639;&#31526;&#24038;&#20391;&#30340;&#21517;&#31216;&#25214;&#21040;&#23427;&#20204;&#20043;&#19968;&#26102;&#65292;&#23427;&#31105;&#27490;<a href="cpp-language-adl.html">&#23454;&#21442;&#20381;&#36182;&#26597;&#25214;</a>&#12290;</li>
</ul>
<p>&#23454;&#38469;&#19978;&#65292;&#23427;&#20204;&#33021;&#20197;&#20989;&#25968;&#23545;&#35937;&#65292;&#25110;&#20197;&#26576;&#20123;&#29305;&#27530;&#32534;&#35793;&#22120;&#25193;&#23637;&#23454;&#29616;&#12290;</p>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
<table class="t-par-begin">
<tr class="t-par">
<td>ifirst, ilast</td>
<td>-</td>
<td>&#35201;&#22797;&#21046;&#30340;&#20803;&#32032;&#33539;&#22260;</td>
</tr>
<tr class="t-par">
<td>in_range</td>
<td>-</td>
<td>&#35201;&#22797;&#21046;&#30340;&#20803;&#32032;&#33539;&#22260;</td>
</tr>
<tr class="t-par">
<td>ofirst, olast</td>
<td>-</td>
<td>&#30446;&#26631;&#33539;&#22260;</td>
</tr>
<tr class="t-par">
<td>out_range</td>
<td>-</td>
<td>&#30446;&#26631;&#33539;&#22260;</td>
</tr>
</table>
<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">&#36820;&#22238;&#20540;</span></h3>
<p><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="br0">{</span>ifirst <span class="sy2">+</span> N, ofirst <span class="sy2">+</span> N<span class="br0">}</span></span></span> &#12290;</p>
<h3><span class="mw-headline" id=".E5.A4.8D.E6.9D.82.E5.BA.A6">&#22797;&#26434;&#24230;</span></h3>
<p><span class="mjax" style="display:none">O(N)</span><span class="mjax-fallback texhtml" style="white-space: nowrap;">&#120030;(N)</span> &#12290;</p>
<h3><span class="mw-headline" id=".E5.BC.82.E5.B8.B8">&#24322;&#24120;</span></h3>
<p>&#26500;&#36896;&#30446;&#26631;&#33539;&#22260;&#20013;&#30340;&#20803;&#32032;&#26102;&#25243;&#20986;&#30340;&#24322;&#24120;&#65292;&#33509;&#23384;&#22312;&#12290;</p>
<h3><span class="mw-headline" id=".E6.B3.A8.E8.A7.A3">&#27880;&#35299;</span></h3>
<p>&#33509;&#36755;&#20986;&#33539;&#22260;&#30340;&#20540;&#31867;&#22411;&#20026;<a href="cpp-named_req-TrivialType.html"><span style="font-style:italic">&#24179;&#20961;&#31867;&#22411;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(TrivialType)</span></a> &#65292;&#21017;&#23454;&#29616;&#21487;&#33021;&#25552;&#21319; <code>ranges::uninitialized_copy</code> &#30340;&#25928;&#29575;&#12290;</p>
<h3><span class="mw-headline" id=".E5.8F.AF.E8.83.BD.E7.9A.84.E5.AE.9E.E7.8E.B0">&#21487;&#33021;&#30340;&#23454;&#29616;</span></h3>
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<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="cpp source-cpp">
<pre class="de1"><span class="kw1">struct</span> uninitialized_copy_fn <span class="br0">{</span>
<span class="kw1">template</span> <span class="sy1">&lt;</span>std<span class="sy4">::</span><span class="me2">input_iterator</span> I, std<span class="sy4">::</span><span class="me2">sentinel_for</span><span class="sy1">&lt;</span>I<span class="sy1">&gt;</span> S1,
no<span class="sy2">-</span>throw<span class="sy2">-</span>forward<span class="sy2">-</span>iterator O, no<span class="sy2">-</span>throw<span class="sy2">-</span>sentinel<span class="sy2">-</span><span class="kw1">for</span><span class="sy1">&lt;</span>O<span class="sy1">&gt;</span> S2<span class="sy1">&gt;</span>
requires std<span class="sy4">::</span><span class="me2">constructible_from</span><span class="sy1">&lt;</span>std<span class="sy4">::</span><span class="me2">iter_value_t</span><span class="sy1">&lt;</span>O<span class="sy1">&gt;</span>, std<span class="sy4">::</span><span class="me2">iter_reference_t</span><span class="sy1">&lt;</span>I<span class="sy1">&gt;&gt;</span>
ranges<span class="sy4">::</span><span class="me2">uninitialized_copy_result</span><span class="sy1">&lt;</span>I, O<span class="sy1">&gt;</span>
operator<span class="br0">(</span><span class="br0">)</span><span class="br0">(</span> I ifirst, S1 ilast, O ofirst, S2 olast <span class="br0">)</span> <span class="kw4">const</span> <span class="br0">{</span>
O current <span class="br0">{</span>ofirst<span class="br0">}</span><span class="sy4">;</span>
<span class="kw1">try</span> <span class="br0">{</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="sy4">;</span> <span class="sy3">!</span><span class="br0">(</span>ifirst <span class="sy1">==</span> ilast or current <span class="sy1">==</span> olast<span class="br0">)</span><span class="sy4">;</span> <span class="sy2">++</span>ifirst, <span class="sy2">++</span>current<span class="br0">)</span>
ranges<span class="sy4">::</span><span class="me2">construct_at</span><span class="br0">(</span><a href="cpp-memory-addressof.html"><span class="kw757">std::<span class="me2">addressof</span></span></a><span class="br0">(</span><span class="sy2">*</span>current<span class="br0">)</span>, <span class="sy2">*</span>ifirst<span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">return</span> <span class="br0">{</span>std<span class="sy4">::</span><span class="me2">move</span><span class="br0">(</span>ifirst<span class="br0">)</span>, std<span class="sy4">::</span><span class="me2">move</span><span class="br0">(</span>current<span class="br0">)</span><span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span> <span class="kw1">catch</span> <span class="br0">(</span>...<span class="br0">)</span> <span class="br0">{</span> <span class="co1">// &#22238;&#28378;&#65306;&#38144;&#27585;&#26500;&#36896;&#30340;&#20803;&#32032;</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="sy4">;</span> ofirst <span class="sy3">!</span><span class="sy1">=</span> current<span class="sy4">;</span> <span class="sy2">++</span>ofirst<span class="br0">)</span>
ranges<span class="sy4">::</span><span class="me2">destroy_at</span><span class="br0">(</span><a href="cpp-memory-addressof.html"><span class="kw757">std::<span class="me2">addressof</span></span></a><span class="br0">(</span><span class="sy2">*</span>ofirst<span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">throw</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="br0">}</span>
<span class="kw1">template</span> <span class="sy1">&lt;</span>ranges<span class="sy4">::</span><span class="me2">input_range</span> IR, no<span class="sy2">-</span>throw<span class="sy2">-</span>forward<span class="sy2">-</span>range OR<span class="sy1">&gt;</span>
requires std<span class="sy4">::</span><span class="me2">constructible_from</span><span class="sy1">&lt;</span>ranges<span class="sy4">::</span><span class="me2">range_value_t</span><span class="sy1">&lt;</span>OR<span class="sy1">&gt;</span>,
ranges<span class="sy4">::</span><span class="me2">range_reference_t</span><span class="sy1">&lt;</span>IR<span class="sy1">&gt;&gt;</span>
ranges<span class="sy4">::</span><span class="me2">uninitialized_copy_result</span><span class="sy1">&lt;</span>ranges<span class="sy4">::</span><span class="me2">borrowed_iterator_t</span><span class="sy1">&lt;</span>IR<span class="sy1">&gt;</span>,
ranges<span class="sy4">::</span><span class="me2">borrowed_iterator_t</span><span class="sy1">&lt;</span>OR<span class="sy1">&gt;&gt;</span>
operator<span class="br0">(</span><span class="br0">)</span><span class="br0">(</span> IR<span class="sy3">&amp;&amp;</span> in_range, OR<span class="sy3">&amp;&amp;</span> out_range <span class="br0">)</span> <span class="kw4">const</span> <span class="br0">{</span>
<span class="kw1">return</span> <span class="br0">(</span><span class="sy2">*</span>this<span class="br0">)</span><span class="br0">(</span>ranges<span class="sy4">::</span><span class="me2">begin</span><span class="br0">(</span>in_range<span class="br0">)</span>, ranges<span class="sy4">::</span><span class="me2">end</span><span class="br0">(</span>in_range<span class="br0">)</span>,
ranges<span class="sy4">::</span><span class="me2">begin</span><span class="br0">(</span>out_range<span class="br0">)</span>, ranges<span class="sy4">::</span><span class="me2">end</span><span class="br0">(</span>out_range<span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="br0">}</span><span class="sy4">;</span>
<span class="kw1">inline</span> <span class="kw4">constexpr</span> uninitialized_copy_fn uninitialized_copy<span class="br0">{</span><span class="br0">}</span><span class="sy4">;</span></pre></div>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">&#31034;&#20363;</span></h3>
<div class="t-example">
<div class="t-example-live-link"></div>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="cpp source-cpp">
<pre class="de1"><span class="co2">#include &lt;cstdlib&gt;</span>
<span class="co2">#include &lt;iomanip&gt;</span>
<span class="co2">#include &lt;iostream&gt;</span>
<span class="co2">#include &lt;memory&gt;</span>
<span class="co2">#include &lt;string&gt;</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> v<span class="br0">[</span><span class="br0">]</span> <span class="br0">{</span> <span class="st0">&quot;This&quot;</span>, <span class="st0">&quot;is&quot;</span>, <span class="st0">&quot;an&quot;</span>, <span class="st0">&quot;example&quot;</span>, <span class="br0">}</span><span class="sy4">;</span>
<span class="kw1">if</span> <span class="br0">(</span><span class="kw4">const</span> <span class="kw4">auto</span> sz<span class="br0">{</span><a href="cpp-iterator-size.html"><span class="kw684">std::<span class="me2">size</span></span></a><span class="br0">(</span>v<span class="br0">)</span><span class="br0">}</span><span class="sy4">;</span>
<span class="kw4">void</span><span class="sy2">*</span> pbuf <span class="sy1">=</span> <a href="cpp-memory-c-aligned_alloc.html"><span class="kw760">std::<span class="me2">aligned_alloc</span></span></a><span class="br0">(</span>alignof<span class="br0">(</span><a href="cpp-string-basic_string.html"><span class="kw1230">std::<span class="me2">string</span></span></a><span class="br0">)</span>, sizeof<span class="br0">(</span><a href="cpp-string-basic_string.html"><span class="kw1230">std::<span class="me2">string</span></span></a><span class="br0">)</span> <span class="sy2">*</span> sz<span class="br0">)</span><span class="br0">)</span>
<span class="br0">{</span>
<span class="kw1">try</span>
<span class="br0">{</span>
<span class="kw4">auto</span> first <span class="br0">{</span><span class="kw1">static_cast</span><span class="sy1">&lt;</span><a href="cpp-string-basic_string.html"><span class="kw1230">std::<span class="me2">string</span></span></a><span class="sy2">*</span><span class="sy1">&gt;</span><span class="br0">(</span>pbuf<span class="br0">)</span><span class="br0">}</span><span class="sy4">;</span>
<span class="kw4">auto</span> last <span class="br0">{</span>first <span class="sy2">+</span> sz<span class="br0">}</span><span class="sy4">;</span>
std<span class="sy4">::</span><span class="me2">ranges</span><span class="sy4">::</span><span class="me2">uninitialized_copy</span><span class="br0">(</span><a href="cpp-iterator-begin.html"><span class="kw676">std::<span class="me2">begin</span></span></a><span class="br0">(</span>v<span class="br0">)</span>, <a href="cpp-iterator-end.html"><span class="kw680">std::<span class="me2">end</span></span></a><span class="br0">(</span>v<span class="br0">)</span>, first, last<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;{ &quot;</span><span class="sy4">;</span>
<span class="kw1">for</span> <span class="br0">(</span><span class="kw4">auto</span> it <span class="br0">{</span>first<span class="br0">}</span><span class="sy4">;</span> it <span class="sy3">!</span><span class="sy1">=</span> last<span class="sy4">;</span> <span class="sy2">++</span>it<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-quoted.html"><span class="kw1802">std::<span class="me2">quoted</span></span></a><span class="br0">(</span><span class="sy2">*</span>it<span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;, &quot;</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;};<span class="es1">\n</span>&quot;</span><span class="sy4">;</span>
std<span class="sy4">::</span><span class="me2">ranges</span><span class="sy4">::</span><span class="me2">destroy</span><span class="br0">(</span>first, last<span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="kw1">catch</span><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> <span class="st0">&quot;uninitialized_copy exception<span class="es1">\n</span>&quot;</span><span class="sy4">;</span>
<span class="br0">}</span>
<a href="cpp-memory-c-free.html"><span class="kw763">std::<span class="me2">free</span></span></a><span class="br0">(</span>pbuf<span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="br0">}</span></pre></div>
</div>
<p>&#36755;&#20986;&#65306;</p>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="text source-text">
<pre class="de1">{ &quot;This&quot;, &quot;is&quot;, &quot;an&quot;, &quot;example&quot;, };</pre></div>
</div>
</div>
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">&#21442;&#38405;</span></h3>
<table class="t-dsc-begin">
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-memory-ranges-uninitialized_copy_n.html"><span class="t-lines"><span>ranges::uninitialized_copy_n</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
</div>
</td>
<td>&#22797;&#21046;&#19968;&#23450;&#37327;&#20803;&#32032;&#21040;&#26410;&#21021;&#22987;&#21270;&#30340;&#20869;&#23384;&#21306;&#22495;<br />
<span class="t-mark">(niebloid)</span></td>
</tr>
<tr class="t-dsc">
<td>
<div class="t-dsc-member-div">
<div><a href="cpp-memory-uninitialized_copy.html"><span class="t-lines"><span>uninitialized_copy</span></span></a></div>
</div>
</td>
<td>&#23558;&#33539;&#22260;&#20869;&#30340;&#23545;&#35937;&#22797;&#21046;&#21040;&#26410;&#21021;&#22987;&#21270;&#30340;&#20869;&#23384;&#21306;&#22495;<br />
<span class="t-mark">(&#20989;&#25968;&#27169;&#26495;)</span></td>
</tr>
</table>
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<div class="visualClear"></div>
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