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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::experimental::ranges::</span>swap</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-experimental.html">experimental</a>&lrm; | <a href="cpp-experimental-ranges.html">ranges</a></span></div>
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<div>&#23450;&#20041;&#20110;&#22836;&#25991;&#20214; <code><a href="cpp-header-experimental-ranges-utility.html">&lt;experimental/ranges/utility&gt;</a></code></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">namespace</span> <span class="br0">{</span><br /></span>
<p>&nbsp; &nbsp; <span class="kw4">constexpr</span> <span class="coMULTI">/* unspecified */</span> swap <span class="sy1">=</span> <span class="coMULTI">/* unspecified */</span><span class="sy4">;</span><br /></p>
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<td><span class="t-mark-rev t-since-ranges-ts t-mark-ts">(&#33539;&#22260; TS)</span><br />
<span class="t-mark">(&#23450;&#21046;&#28857;&#23545;&#35937;)</span></td>
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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> <span class="kw1">class</span> T, <span class="kw1">class</span> U <span class="sy1">&gt;</span><br /></span>
<p>&nbsp; &nbsp; requires <span class="coMULTI">/* see below */</span><br /></p>
<span class="kw4">void</span> swap<span class="br0">(</span>T<span class="sy3">&amp;&amp;</span> t, U<span class="sy3">&amp;&amp;</span> u<span class="br0">)</span> <span class="kw1">noexcept</span><span class="br0">(</span><span class="coMULTI">/* see below */</span><span class="br0">)</span><span class="sy4">;</span></div>
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<p>&#20132;&#25442; <code>t</code> &#21644; <code>u</code> &#25152;&#24341;&#29992;&#30340;&#20540;&#12290;</p>
<p>&#35843;&#29992; <code>ranges::swap</code> &#31561;&#20215;&#20110;&#65306;</p>
<div class="t-li1"><span class="t-li">1)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="br0">(</span><span class="kw4">void</span><span class="br0">)</span>swap<span class="br0">(</span><a href="cpp-utility-forward.html"><span class="kw1117">std::<span class="me2">forward</span></span></a><span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="br0">(</span>t<span class="br0">)</span>, <a href="cpp-utility-forward.html"><span class="kw1117">std::<span class="me2">forward</span></span></a><span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="br0">(</span>u<span class="br0">)</span><span class="br0">)</span></span></span> &#65292;&#33509;&#35813;&#34920;&#36798;&#24335;&#21512;&#27861;&#65292;&#20854;&#20013;&#20197;&#19979;&#21015;&#20505;&#36873;&#36827;&#34892;<a href="cpp-language-overload_resolution.html">&#37325;&#36733;&#20915;&#35758;</a>&#65306;
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<li><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span> <span class="kw4">void</span> swap<span class="br0">(</span>T<span class="sy3">&amp;</span>, T<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span></span></span></li>
<li><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T, <a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> N<span class="sy1">&gt;</span> <span class="kw4">void</span> swap<span class="br0">(</span>T<span class="br0">(</span><span class="sy3">&amp;</span><span class="br0">)</span><span class="br0">[</span>N<span class="br0">]</span>, T<span class="br0">(</span><span class="sy3">&amp;</span><span class="br0">)</span><span class="br0">[</span>N<span class="br0">]</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span></span></span></li>
<li><a href="cpp-language-adl.html">&#21442;&#25968;&#20381;&#36182;&#26597;&#25214;</a>&#25152;&#25214;&#21040;&#30340;&#20219;&#20309; <code>swap</code> &#30340;&#22768;&#26126;&#12290;</li>
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<div class="t-li1"><span class="t-li"></span> &#33509;&#37325;&#36733;&#20915;&#35758;&#25152;&#36873;&#25321;&#30340;&#20989;&#25968;&#19981;&#20132;&#25442; <code>t</code> &#21644; <code>u</code> &#25152;&#24341;&#29992;&#30340;&#20540;&#65292;&#21017;&#31243;&#24207;&#20026;&#20026;&#30149;&#24335;&#65307;&#19981;&#35201;&#27714;&#35786;&#26029;&#12290;</div>
<div class="t-li1"><span class="t-li">2)</span> &#21542;&#21017;&#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="br0">(</span><span class="kw4">void</span><span class="br0">)</span>ranges<span class="sy4">::</span><span class="me2">swap_ranges</span><span class="br0">(</span>t, u<span class="br0">)</span></span></span> &#65292;&#33509; <code>T</code> &#21644; <code>U</code> &#20026;&#21040;&#30456;&#31561;&#38271;&#24230;&#65288;&#20294;&#20803;&#32032;&#31867;&#22411;&#21487;&#33021;&#19981;&#21516;&#65289;&#30340;&#25968;&#32452;&#31867;&#22411;&#30340;&#24038;&#20540;&#24341;&#29992;&#65292;&#19988; <span class="t-c"><span class="mw-geshi cpp source-cpp">ranges<span class="sy4">::</span><span class="me2">swap</span><span class="br0">(</span><span class="sy2">*</span>t, <span class="sy2">*</span>u<span class="br0">)</span></span></span> &#20026;&#21512;&#27861;&#34920;&#36798;&#24335;&#65307;</div>
<div class="t-li1"><span class="t-li">3)</span> &#21542;&#21017;&#65292;&#33509; <code>T</code> &#19982; <code>U</code> &#22343;&#20026; <code>V&amp;</code> &#65292;&#32780; <code>V</code> &#26159;&#28385;&#36275; <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-experimental-ranges-concepts-MoveConstructible.html"><span class="kw2550">ranges::<span class="me2">MoveConstructible</span></span></a><span class="sy1">&lt;</span>V<span class="sy1">&gt;</span></span></span> &#21644; <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-experimental-ranges-concepts-Assignable.html"><span class="kw2538">ranges::<span class="me2">Assignable</span></span></a><span class="sy1">&lt;</span>V<span class="sy3">&amp;</span>, V<span class="sy1">&gt;</span></span></span> &#35201;&#27714;&#30340;&#26576;&#20010;&#31867;&#22411;&#65292;&#21017;&#22914;&#21516;&#29992; <span class="t-c"><span class="mw-geshi cpp source-cpp">V v<span class="br0">{</span>std<span class="sy4">::</span><span class="me2">move</span><span class="br0">(</span>t<span class="br0">)</span><span class="br0">}</span><span class="sy4">;</span> t <span class="sy1">=</span> std<span class="sy4">::</span><span class="me2">move</span><span class="br0">(</span>u<span class="br0">)</span><span class="sy4">;</span> u <span class="sy1">=</span> std<span class="sy4">::</span><span class="me2">move</span><span class="br0">(</span>v<span class="br0">)</span><span class="sy4">;</span></span></span> &#20132;&#25442;&#20854;&#34987;&#24341;&#29992;&#20540;&#12290;&#33509;&#20219;&#19968;&#27010;&#24565;&#30340;&#35821;&#20041;&#35201;&#27714;&#26410;&#24471;&#21040;&#28385;&#36275;&#65292;&#21017;&#31243;&#24207;&#20026;&#30149;&#24335;&#65307;&#19981;&#35201;&#27714;&#35786;&#26029;&#12290;</div>
<div class="t-li1"><span class="t-li">4)</span> &#25152;&#26377;&#20854;&#20182;&#24773;&#20917;&#19979;&#65292;&#23545; <code>ranges::swap</code> &#30340;&#35843;&#29992;&#20026;&#30149;&#24335;&#12290;</div>
<p>&#33509; <span class="t-c"><span class="mw-geshi cpp source-cpp">ranges<span class="sy4">::</span><span class="me2">swap</span></span></span> &#35843;&#29992;&#30340;&#27599;&#20010;&#20989;&#25968;&#65288;&#25353;&#19978;&#36848;&#26041;&#24335;&#25351;&#23450;&#65289;&#37117;&#33021;&#29992;&#20110;&#24120;&#37327;&#34920;&#36798;&#24335;&#20013;&#65292;&#21017;&#20134;&#33021;&#22914;&#27492;&#20351;&#29992;&#23427;&#12290;</p>
<h3><span class="mw-headline" id=".E5.AE.9A.E5.88.B6.E7.82.B9.E5.AF.B9.E8.B1.A1">&#23450;&#21046;&#28857;&#23545;&#35937;</span></h3>
<p>&#21517;&#31216; <code>ranges::swap</code> &#20195;&#34920;&#19968;&#20010;<i>&#23450;&#21046;&#28857;&#23545;&#35937;</i>&#65292;&#23427;&#26159;<a href="cpp-named_req-LiteralType.html">&#23383;&#38754;</a> <a href="cpp-experimental-ranges-concepts-Semiregular.html"><code>Semiregular</code></a> &#31867;&#31867;&#22411;&#30340;<a href="cpp-named_req-FunctionObject.html">&#20989;&#25968;&#23545;&#35937;</a>&#65288;&#20026;&#35828;&#26126;&#30446;&#30340;&#20197; <code>SwapT</code> &#34920;&#31034;&#65289;&#12290;<code>SwapT</code> &#30340;&#25152;&#26377;&#23454;&#20363;&#22343;&#30456;&#31561;&#12290;&#20174;&#32780;&#33021;&#33258;&#30001;&#22320;&#22797;&#21046; <code>ranges::swap</code> &#65292;&#19988;&#33021;&#20132;&#26367;&#20351;&#29992;&#20854;&#21103;&#26412;&#12290;</p>
<p>&#32473;&#23450;&#31867;&#22411;&#38598;&#21512; <code>Args...</code> &#65292;&#33509; <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-utility-declval.html"><span class="kw1120">std::<span class="me2">declval</span></span></a><span class="sy1">&lt;</span>Args<span class="sy1">&gt;</span><span class="br0">(</span><span class="br0">)</span>...</span></span> &#28385;&#36275;&#19978;&#38754;&#32473; <code>ranges::swap</code> &#30340;&#21442;&#25968;&#35201;&#27714;&#65292;&#21017; <code>SwapT</code> &#23558;&#28385;&#36275; <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-experimental-ranges-concepts-Invocable.html"><span class="kw2556">ranges::<span class="me2">Invocable</span></span></a><span class="sy1">&lt;</span><span class="kw4">const</span> SwapT, Args...<span class="sy1">&gt;</span></span></span> &#12290;&#21542;&#21017;&#65292;&#27809;&#26377; <code>SwapT</code> &#30340;&#20989;&#25968;&#35843;&#29992;&#36816;&#31639;&#31526;&#21442;&#19982;&#37325;&#36733;&#20915;&#35758;&#12290;</p>
<p>&#22312;&#27599;&#20010;&#23450;&#20041; <code>ranges::swap</code> &#30340;&#32763;&#35793;&#21333;&#20803;&#20013;&#65292;&#23427;&#37117;&#25351;&#20195;&#23450;&#21046;&#28857;&#23545;&#35937;&#30340;&#21516;&#19968;&#23454;&#20363;&#12290;&#65288;&#36825;&#34920;&#31034;&#33021;&#33258;&#30001;&#22320;&#22312;&#31867;&#20284; inline &#20989;&#25968;&#21644;&#20989;&#25968;&#27169;&#26495;&#30340;&#19996;&#35199;&#20013;&#20351;&#29992;&#23427;&#65292;&#32780;&#19981;&#36829;&#21453;<a href="cpp-language-definition.html#.E5.8D.95.E4.B8.80.E5.AE.9A.E4.B9.89.E8.A7.84.E5.88.99.EF.BC.88ODR.EF.BC.89">&#21333;&#19968;&#23450;&#20041;&#35268;&#21017;</a>&#12290;&#65289;</p>
<h3><span class="mw-headline" id=".E5.BC.82.E5.B8.B8">&#24322;&#24120;</span></h3>
<div class="t-li1"><span class="t-li">1)</span>
<div class="t-noexcept-full"><a href="cpp-language-noexcept_spec.html"><tt>noexcept</tt></a> &#35828;&#26126;&#65306;&nbsp;&nbsp;
<div class="t-noexcept-box"><span class="t-cc"><span class="mw-geshi cpp source-cpp"><span class="kw1">noexcept</span><span class="br0">(</span><span class="kw1">noexcept</span><span class="br0">(</span><span class="br0">(</span><span class="kw4">void</span><span class="br0">)</span>swap<span class="br0">(</span><a href="cpp-utility-forward.html"><span class="kw1117">std::<span class="me2">forward</span></span></a><span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="br0">(</span>t<span class="br0">)</span>, <a href="cpp-utility-forward.html"><span class="kw1117">std::<span class="me2">forward</span></span></a><span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="br0">(</span>u<span class="br0">)</span><span class="br0">)</span><span class="br0">)</span><span class="br0">)</span></span></span></div>
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&#65292;&#20854;&#20013;&#25353;&#19978;&#36848;&#26041;&#24335;&#25214;&#21040; <code>swap</code> &#12290;</div>
<div class="t-li1"><span class="t-li">2)</span>
<div class="t-noexcept-full"><a href="cpp-language-noexcept_spec.html"><tt>noexcept</tt></a> &#35828;&#26126;&#65306;&nbsp;&nbsp;
<div class="t-noexcept-box"><span class="t-cc"><span class="mw-geshi cpp source-cpp"><span class="kw1">noexcept</span><span class="br0">(</span><span class="kw1">noexcept</span><span class="br0">(</span>ranges<span class="sy4">::</span><span class="me2">swap</span><span class="br0">(</span><span class="sy2">*</span>t, <span class="sy2">*</span>u<span class="br0">)</span><span class="br0">)</span><span class="br0">)</span></span></span></div>
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<div class="t-li1"><span class="t-li">3)</span>
<div class="t-noexcept-full"><a href="cpp-language-noexcept_spec.html"><tt>noexcept</tt></a> &#35828;&#26126;&#65306;&nbsp;&nbsp;
<div class="t-noexcept-box"><span class="t-cc"><span class="mw-geshi cpp source-cpp"><span class="kw1">noexcept</span><span class="br0">(</span><a href="cpp-types-is_move_constructible.html"><span class="kw542">std::<span class="me2">is_nothrow_move_constructible</span></span></a><span class="sy1">&lt;</span>V<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value</span> <span class="sy3">&amp;&amp;</span><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<a href="cpp-types-is_move_assignable.html"><span class="kw560">std::<span class="me2">is_nothrow_move_assignable</span></span></a><span class="sy1">&lt;</span>V<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">value</span><span class="br0">)</span></span></span></div>
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<div><a href="cpp-algorithm-swap.html"><span class="t-lines"><span>swap</span></span></a></div>
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<td>&#20132;&#25442;&#20004;&#20010;&#23545;&#35937;&#30340;&#20540;<br />
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