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<title>std::basic_osyncstream<CharT,Traits,Allocator>::basic_osyncstream</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::basic_osyncstream<CharT,Traits,Allocator>::</span>basic_osyncstream</h1>
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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_osyncstream.html">basic osyncstream</a></span></div>
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<div><span class="mw-geshi cpp source-cpp">basic_osyncstream<span class="br0">(</span> streambuf_type<span class="sy2">*</span> buf, <span class="kw4">const</span> Allocator<span class="sy3">&</span> a<span class="br0">)</span><span class="sy4">;</span></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">explicit</span> basic_osyncstream<span class="br0">(</span> streambuf_type<span class="sy2">*</span> buf <span class="br0">)</span><br />
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<span class="sy4">:</span> basic_osyncstream<span class="br0">(</span> buf, Allocator<span class="br0">(</span><span class="br0">)</span> <span class="br0">)</span> <span class="br0">{</span><span class="br0">}</span></span></div>
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<div><span class="mw-geshi cpp source-cpp">basic_osyncstream<span class="br0">(</span> <a href="cpp-io-basic_ostream.html"><span class="kw1715">std::<span class="me2">basic_ostream</span></span></a><span class="sy1"><</span>CharT, Traits<span class="sy1">></span><span class="sy3">&</span> os, <span class="kw4">const</span> Allocator<span class="sy3">&</span> a<span class="br0">)</span><br />
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<span class="sy4">:</span> basic_osyncstream<span class="br0">(</span> os.<span class="me1">rdbuf</span><span class="br0">(</span><span class="br0">)</span>, a<span class="br0">)</span> <span class="br0">{</span><span class="br0">}</span></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">explicit</span> basic_osyncstream<span class="br0">(</span> <a href="cpp-io-basic_ostream.html"><span class="kw1715">std::<span class="me2">basic_ostream</span></span></a><span class="sy1"><</span>CharT, Traits<span class="sy1">></span><span class="sy3">&</span> os <span class="br0">)</span><br />
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<span class="sy4">:</span> basic_osyncstream<span class="br0">(</span> os, Allocator<span class="br0">(</span><span class="br0">)</span> <span class="br0">)</span> <span class="br0">{</span><span class="br0">}</span></span></div>
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<div><span class="mw-geshi cpp source-cpp">basic_osyncstream<span class="br0">(</span> std<span class="sy4">::</span><span class="me2">basic_osyncstream</span><span class="sy3">&&</span> other<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<p>构造新的同步输出流。</p>
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<div class="t-li1"><span class="t-li">1-4)</span> 以提供的缓冲和分配器构造私有成员 std::basic_syncbuf ，并以指向成员 std::basic_streambuf 的指针初始化基类。</div>
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<div class="t-li1"><span class="t-li">5)</span> 移动构造函数。从 <code>other</code> 的对应子对象移动构造 std::basic_ostream 基类和 std::basic_syncbuf 成员，然后以指向新构造的底层 std::basic_syncbuf 的指针调用 <a href="cpp-io-basic_ios-set_rdbuf.html"><tt>set_rdbuf</tt></a> 以完成基类的初始化。此移动构造函数后， <span class="t-c"><span class="mw-geshi cpp source-cpp">other.<span class="me1">get_wrapped</span><span class="br0">(</span><span class="br0">)</span></span></span> 返回 <span class="t-c"><span class="mw-geshi cpp source-cpp">nullptr</span></span> ，而 <code>other</code> 的析构不产生输出。</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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<td>buf</td>
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<td>-</td>
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<td>指向将被包装的 <span class="t-lc"><a href="cpp-io-basic_streambuf.html">std::basic_streambuf</a></span> 的指针</td>
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<td>os</td>
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<td>-</td>
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<td>到 <span class="t-lc"><a href="cpp-io-basic_ostream.html">std::basic_ostream</a></span> 的引用，将包装其 rdbuf()</td>
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<td>a</td>
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<td>-</td>
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<td>传递给成员 <span class="t-lc">std::basic_syncbuf</span> 的构造函数的分配器</td>
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<td>other</td>
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<td>-</td>
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<td>移动来源的另一 osyncstream</td>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
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<td class="mbox-text" style="">本节未完成<br />
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原因：暂无示例</td>
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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_syncbuf-basic_syncbuf.html"><span class="t-lines"><span>(构造函数)</span></span></a></div>
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<td>构造 basic_syncbuf 对象<br />
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<span class="t-mark">(<code>std::basic_syncbuf<CharT,Traits,Allocator></code> 的公开成员函数)</span></td>
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