72 lines
4.1 KiB
HTML
72 lines
4.1 KiB
HTML
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<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
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<title>std::basic_iostream<CharT,Traits>::operator=</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_io_basic_iostream_operator skin-cppreference2 action-view cpp-navbar">
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<div id="cpp-content-base">
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::basic_iostream<CharT,Traits>::</span>operator=</h1>
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<div id="bodyContent">
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-io.html">io</a>‎ | <a href="cpp-io-basic_iostream.html">basic iostream</a></span></div>
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<div><span class="mw-geshi cpp source-cpp">basic_iostream<span class="sy3">&</span> operator<span class="sy1">=</span><span class="br0">(</span> <span class="kw4">const</span> basic_iostream<span class="sy3">&</span> other <span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span></span></div>
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</td>
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<td>(1)</td>
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<td class="t-dcl-nopad"></td>
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<tr class="t-dcl t-since-cxx11">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">protected</span><span class="sy4">:</span><br />
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basic_iostream<span class="sy3">&</span> operator<span class="sy1">=</span><span class="br0">(</span> basic_iostream<span class="sy3">&&</span> other <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td>(2)</td>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></td>
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<td></td>
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<td></td>
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<td></td>
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<p>赋值另一流对象。</p>
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<div class="t-li1"><span class="t-li">1)</span> 不允许复制赋值。</div>
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<div class="t-li1"><span class="t-li">2)</span> 移动赋值另一流对象。等效地调用 <span class="t-c"><span class="mw-geshi cpp source-cpp">swap<span class="br0">(</span>rhs<span class="br0">)</span></span></span> 。此移动赋值运算符受保护：它为导出流类 <span class="t-lc"><a href="cpp-io-basic_stringstream.html">std::basic_stringstream</a></span> 和 <span class="t-lc"><a href="cpp-io-basic_fstream.html">std::basic_fstream</a></span> 的移动赋值运算符所调用，这些运算符知晓如何正确地移动赋值关联的流缓冲。</div>
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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>other</td>
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<td>-</td>
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<td>要赋值其状态的另一流</td>
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</table>
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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"><span class="sy2">*</span>this</span></span></p>
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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-io-basic_iostream-basic_iostream.html"><span class="t-lines"><span>(构造函数)</span></span></a></div>
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</td>
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<td>构造对象<br />
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<span class="t-mark">(公开成员函数)</span></td>
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