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<title>std::basic_stringbuf&lt;CharT,Traits,Allocator&gt;::operator=</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::basic_stringbuf&lt;CharT,Traits,Allocator&gt;::</span>operator=</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-io.html">io</a>&lrm; | <a href="cpp-io-basic_stringbuf.html">basic stringbuf</a></span></div>
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<div><span class="mw-geshi cpp source-cpp"><a href="cpp-io-basic_stringbuf.html"><span class="kw1668">std::<span class="me2">basic_stringbuf</span></span></a><span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span> <a href="cpp-io-basic_stringbuf.html"><span class="kw1668">std::<span class="me2">basic_stringbuf</span></span></a><span class="sy3">&amp;&amp;</span> rhs <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td>(1)</td>
<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></td>
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<div><span class="mw-geshi cpp source-cpp"><a href="cpp-io-basic_stringbuf.html"><span class="kw1668">std::<span class="me2">basic_stringbuf</span></span></a><span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span> <span class="kw4">const</span> <a href="cpp-io-basic_stringbuf.html"><span class="kw1668">std::<span class="me2">basic_stringbuf</span></span></a><span class="sy3">&amp;</span> rhs <span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span></span></div>
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<div class="t-li1"><span class="t-li">1)</span> &#31227;&#21160;&#36171;&#20540;&#36816;&#31639;&#31526;&#65306;&#31227;&#21160; <code>rhs</code> &#30340;&#20869;&#23481;&#21040; <code>*this</code> &#20013;&#12290;&#31227;&#21160;&#21518; <code>*this</code> &#25317;&#26377; <code>rhs</code> &#20043;&#21069;&#20445;&#26377;&#30340;&#20851;&#32852; string &#12289;&#25171;&#24320;&#27169;&#24335;&#12289;&#26412;&#22320;&#29615;&#22659;&#21644;&#25152;&#26377;&#20854;&#20182;&#29366;&#24577;&#12290;&#20445;&#35777; <code>*this</code> &#20013; <span class="t-lc"><a href="cpp-io-basic_streambuf.html">std::basic_streambuf</a></span> &#30340;&#20845;&#20010;&#25351;&#38024;&#26377;&#21035;&#20110;&#34987;&#31227;&#21160;&#30340; <code>rhs</code> &#30340;&#23545;&#24212;&#25351;&#38024;&#65292;&#38500;&#38750;&#23427;&#20204;&#20026;&#31354;&#12290;</div>
<div class="t-li1"><span class="t-li">2)</span> &#22797;&#21046;&#36171;&#20540;&#36816;&#31639;&#31526;&#34987;&#21024;&#38500;&#65307; <code>basic_stringbuf</code> &#19981;<a href="cpp-named_req-CopyAssignable.html"><span style="font-style:italic">&#21487;&#22797;&#21046;&#36171;&#20540;</span> <span style="font-family: Georgia, &#39;DejaVu Serif&#39;, serif; font-style:italic">(CopyAssignable)</span></a> &#12290;</div>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
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<td>&#23558;&#34987;&#31227;&#21160;&#30340;&#21478;&#19968; <code>basic_stringbuf</code></td>
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<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">&#36820;&#22238;&#20540;</span></h3>
<p><code>*this</code></p>
<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;sstream&gt;</span>
<span class="co2">#include &lt;string&gt;</span>
<span class="co2">#include &lt;iostream&gt;</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<a href="cpp-io-basic_istringstream.html"><span class="kw1735">std::<span class="me2">istringstream</span></span></a> one<span class="br0">(</span><span class="st0">&quot;one&quot;</span><span class="br0">)</span><span class="sy4">;</span>
<a href="cpp-io-basic_ostringstream.html"><span class="kw1736">std::<span class="me2">ostringstream</span></span></a> two<span class="br0">(</span><span class="st0">&quot;two&quot;</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;Before move, one = <span class="es1">\&quot;</span>&quot;</span> <span class="sy1">&lt;&lt;</span> one.<span class="me1">str</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;&quot;&#39;</span>
<span class="sy1">&lt;&lt;</span> <span class="st0">&quot; two = <span class="es1">\&quot;</span>&quot;</span> <span class="sy1">&lt;&lt;</span> two.<span class="me1">str</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;<span class="es1">\&quot;</span><span class="es1">\n</span>&quot;</span><span class="sy4">;</span>
<span class="sy2">*</span>one.<span class="me1">rdbuf</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">=</span> std<span class="sy4">::</span><span class="me2">move</span><span class="br0">(</span><span class="sy2">*</span>two.<span class="me1">rdbuf</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="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;After move, one = <span class="es1">\&quot;</span>&quot;</span> <span class="sy1">&lt;&lt;</span> one.<span class="me1">str</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;&quot;&#39;</span>
<span class="sy1">&lt;&lt;</span> <span class="st0">&quot; two = <span class="es1">\&quot;</span>&quot;</span> <span class="sy1">&lt;&lt;</span> two.<span class="me1">str</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;<span class="es1">\&quot;</span><span class="es1">\n</span>&quot;</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
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<p>&#36755;&#20986;&#65306;</p>
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<pre class="de1">Before move, one = &quot;one&quot; two = &quot;two&quot;
After move, one = &quot;two&quot; two = &quot;&quot;</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-io-basic_stringbuf-basic_stringbuf.html"><span class="t-lines"><span>(&#26500;&#36896;&#20989;&#25968;)</span></span></a></div>
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<td>&#26500;&#36896;&#19968;&#20010; basic_stringbuf &#23545;&#35937;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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