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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">&#26631;&#20934;&#24211;&#22836;&#25991;&#20214;</span> &lt;ostream&gt;</h1>
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<p>&#27492;&#22836;&#25991;&#20214;&#26159;<a href="cpp-io.html">&#36755;&#20837;/&#36755;&#20986;</a>&#24211;&#30340;&#19968;&#37096;&#20998;&#12290;</p>
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<h3><span class="mw-headline" id=".E7.B1.BB">&#31867;</span></h3>
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<div><a href="cpp-io-basic_ostream.html"><span class="t-lines"><span>basic_ostream</span></span></a></div>
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<td>&#21253;&#35013;&#32473;&#23450;&#30340;&#25277;&#35937;&#35774;&#22791;&#65288;<span class="t-lc"><a href="cpp-io-basic_streambuf.html">std::basic_streambuf</a></span>&#65289;<br />
&#24182;&#25552;&#20379;&#39640;&#23618;&#36755;&#20986;&#25509;&#21475;<br />
<span class="t-mark">(&#31867;&#27169;&#26495;)</span></td>
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<td><span class="t-lc"><a href="cpp-io-basic_ostream.html">std::ostream</a></span></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-io-basic_ostream.html"><span class="kw1715">std::<span class="me2">basic_ostream</span></span></a><span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span></span></span><br />
<span class="t-mark">(typedef)</span></td>
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<td><span class="t-lc"><a href="cpp-io-basic_ostream.html">std::wostream</a></span></td>
<td><span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-io-basic_ostream.html"><span class="kw1715">std::<span class="me2">basic_ostream</span></span></a><span class="sy1">&lt;</span><span class="kw4">wchar_t</span><span class="sy1">&gt;</span></span></span><br />
<span class="t-mark">(typedef)</span></td>
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<div><a href="cpp-io-basic_ostream-operator_ltlt2.html"><span class="t-lines"><span>operator&lt;&lt;<span class="t-dsc-small">(std::basic_ostream)</span></span></span></a></div>
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<td>&#25554;&#20837;&#23383;&#31526;&#25968;&#25454;<br />
<span class="t-mark">(&#20989;&#25968;)</span></td>
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<h5><span class="mw-headline" id=".E6.93.8D.E7.BA.B5.E7.AC.A6">&#25805;&#32437;&#31526;</span></h5>
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<div><a href="cpp-io-manip-endl.html"><span class="t-lines"><span>endl</span></span></a></div>
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<td>&#36755;&#20986; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="st0">&#39;<span class="es1">\n</span>&#39;</span></span></span> &#24182;&#20914;&#27927;&#36755;&#20986;&#27969;<br />
<span class="t-mark">(&#20989;&#25968;&#27169;&#26495;)</span></td>
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<div><a href="cpp-io-manip-ends.html"><span class="t-lines"><span>ends</span></span></a></div>
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<td>&#36755;&#20986; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="st0">&#39;<span class="es5">\0</span>&#39;</span></span></span><br />
<span class="t-mark">(&#20989;&#25968;&#27169;&#26495;)</span></td>
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<td>&#20914;&#27927;&#36755;&#20986;&#27969;<br />
<span class="t-mark">(&#20989;&#25968;&#27169;&#26495;)</span></td>
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<div><a href="cpp-io-manip-emit_on_flush.html"><span class="t-lines"><span>emit_on_flush</span><span>noemit_on_flush</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
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<td>&#25511;&#21046;&#27969;&#30340; <a href="cpp-io-basic_syncbuf.html"><tt>basic_syncbuf</tt></a> &#26159;&#21542;&#22312;&#20914;&#20837;&#26102;&#21457;&#23556;<br />
<span class="t-mark">(&#20989;&#25968;&#27169;&#26495;)</span></td>
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<div><a href="cpp-io-manip-flush_emit.html"><span class="t-lines"><span>flush_emit</span></span></a></div>
<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
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<td>&#20914;&#20837;&#27969;&#65292;&#32780;&#33509;&#23427;&#20351;&#29992; <a href="cpp-io-basic_syncbuf.html"><tt>basic_syncbuf</tt></a> &#21017;&#21457;&#23556;&#20854;&#20869;&#23481;<br />
<span class="t-mark">(&#20989;&#25968;&#27169;&#26495;)</span></td>
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<h3><span class="mw-headline" id=".E6.A6.82.E8.A6.81">&#27010;&#35201;</span></h3>
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<div class="cpp source-cpp">
<pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits <span class="sy1">=</span> char_traits<span class="sy1">&lt;</span>CharT<span class="sy1">&gt;&gt;</span>
<span class="kw1">class</span> basic_ostream<span class="sy4">;</span>
<span class="kw1">using</span> ostream <span class="sy1">=</span> basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span><span class="sy1">&gt;</span><span class="sy4">;</span>
<span class="kw1">using</span> wostream <span class="sy1">=</span> basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span><span class="sy1">&gt;</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> endl<span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> os<span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> ends<span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> os<span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> flush<span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> os<span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> emit_on_flush<span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> os<span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> noemit_on_flush<span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> os<span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> flush_emit<span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> os<span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Ostream, <span class="kw1">class</span> T<span class="sy1">&gt;</span>
Ostream<span class="sy3">&amp;&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>Ostream<span class="sy3">&amp;&amp;</span> os, <span class="kw4">const</span> T<span class="sy3">&amp;</span> x<span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
</div>
<h4><span class="mw-headline" id=".E7.B1.BB.E6.A8.A1.E6.9D.BF_std::basic_ostream">&#31867;&#27169;&#26495; <span class="t-lc"><a href="cpp-io-basic_ostream.html">std::basic_ostream</a></span></span></h4>
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<div class="cpp source-cpp">
<pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits <span class="sy1">=</span> char_traits<span class="sy1">&lt;</span>CharT<span class="sy1">&gt;&gt;</span>
<span class="kw1">class</span> basic_ostream <span class="sy4">:</span> <span class="kw1">virtual</span> <span class="kw1">public</span> basic_ios<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span> <span class="br0">{</span>
<span class="kw1">public</span><span class="sy4">:</span>
<span class="co1">// &#31867;&#22411;&#65288;&#32487;&#25215;&#33258; basic_ios &#65289;</span>
<span class="kw1">using</span> char_type <span class="sy1">=</span> CharT<span class="sy4">;</span>
<span class="kw1">using</span> int_type <span class="sy1">=</span> <span class="kw1">typename</span> Traits<span class="sy4">::</span><span class="me2">int_type</span><span class="sy4">;</span>
<span class="kw1">using</span> pos_type <span class="sy1">=</span> <span class="kw1">typename</span> Traits<span class="sy4">::</span><span class="me2">pos_type</span><span class="sy4">;</span>
<span class="kw1">using</span> off_type <span class="sy1">=</span> <span class="kw1">typename</span> Traits<span class="sy4">::</span><span class="me2">off_type</span><span class="sy4">;</span>
<span class="kw1">using</span> traits_type <span class="sy1">=</span> Traits<span class="sy4">;</span>
<span class="co1">// &#26500;&#36896;&#20989;&#25968;/&#26512;&#26500;&#20989;&#25968;</span>
<span class="kw1">explicit</span> basic_ostream<span class="br0">(</span>basic_streambuf<span class="sy1">&lt;</span>char_type, Traits<span class="sy1">&gt;</span><span class="sy2">*</span> sb<span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">virtual</span> ~basic_ostream<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<span class="co1">// &#21069;&#32622;&#24037;&#24207;/&#21518;&#32622;&#24037;&#24207;</span>
<span class="kw1">class</span> sentry<span class="sy4">;</span>
<span class="co1">// &#26377;&#26684;&#24335;&#36755;&#20986;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> <span class="br0">(</span><span class="sy2">*</span>pf<span class="br0">)</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ios<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> <span class="br0">(</span><span class="sy2">*</span>pf<span class="br0">)</span><span class="br0">(</span>basic_ios<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>ios_base<span class="sy3">&amp;</span> <span class="br0">(</span><span class="sy2">*</span>pf<span class="br0">)</span><span class="br0">(</span>ios_base<span class="sy3">&amp;</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">bool</span> n<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">short</span> n<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">unsigned</span> <span class="kw4">short</span> n<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">int</span> n<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">unsigned</span> <span class="kw4">int</span> n<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">long</span> n<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">unsigned</span> <span class="kw4">long</span> n<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">long</span> <span class="kw4">long</span> n<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">unsigned</span> <span class="kw4">long</span> <span class="kw4">long</span> n<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">float</span> f<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">double</span> f<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">long</span> <span class="kw4">double</span> f<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">const</span> <span class="kw4">void</span><span class="sy2">*</span> p<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span><span class="kw4">const</span> <span class="kw4">volatile</span> <span class="kw4">void</span><span class="sy2">*</span> val<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>nullptr_t<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_streambuf<span class="sy1">&lt;</span>char_type, Traits<span class="sy1">&gt;</span><span class="sy2">*</span> sb<span class="br0">)</span><span class="sy4">;</span>
<span class="co1">// &#26080;&#26684;&#24335;&#36755;&#20986;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> put<span class="br0">(</span>char_type c<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> write<span class="br0">(</span><span class="kw4">const</span> char_type<span class="sy2">*</span> s, streamsize n<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> flush<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<span class="co1">// &#24033;&#20301;</span>
pos_type tellp<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> seekp<span class="br0">(</span>pos_type<span class="br0">)</span><span class="sy4">;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> seekp<span class="br0">(</span>off_type, ios_base<span class="sy4">::</span><span class="me2">seekdir</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">protected</span><span class="sy4">:</span>
<span class="co1">// &#22797;&#21046;/&#31227;&#21160;&#26500;&#36896;&#20989;&#25968;</span>
basic_ostream<span class="br0">(</span><span class="kw4">const</span> basic_ostream<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
basic_ostream<span class="br0">(</span>basic_ostream<span class="sy3">&amp;&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
<span class="co1">// &#36171;&#20540;&#19982;&#20132;&#25442;</span>
basic_ostream<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> basic_ostream<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
basic_ostream<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span>basic_ostream<span class="sy3">&amp;&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
<span class="kw4">void</span> swap<span class="br0">(</span>basic_ostream<span class="sy3">&amp;</span> rhs<span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span><span class="sy4">;</span>
<span class="co1">// &#23383;&#31526;&#25554;&#20837;&#22120;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, CharT<span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">char</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">char</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">signed</span> <span class="kw4">char</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">unsigned</span> <span class="kw4">char</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">wchar_t</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, char8_t<span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">char16_t</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">char32_t</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, char8_t<span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">char16_t</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">char32_t</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> CharT<span class="sy2">*</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> <span class="kw4">signed</span> <span class="kw4">char</span><span class="sy2">*</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> <span class="kw4">unsigned</span> <span class="kw4">char</span><span class="sy2">*</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> <span class="kw4">wchar_t</span><span class="sy2">*</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> char8_t<span class="sy2">*</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> <span class="kw4">char16_t</span><span class="sy2">*</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">char</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> <span class="kw4">char32_t</span><span class="sy2">*</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> char8_t<span class="sy2">*</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> <span class="kw4">char16_t</span><span class="sy2">*</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> Traits<span class="sy1">&gt;</span>
basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>
operator<span class="sy1">&lt;&lt;</span><span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span><span class="kw4">wchar_t</span>, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span>, <span class="kw4">const</span> <span class="kw4">char32_t</span><span class="sy2">*</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="br0">}</span></pre></div>
</div>
<h4><span class="mw-headline" id=".E7.B1.BB_std::basic_ostream::sentry">&#31867; <span class="t-lc"><a href="cpp-io-basic_ostream-sentry.html">std::basic_ostream::sentry</a></span></span></h4>
<div dir="ltr" class="mw-geshi" style="text-align: left;">
<div class="cpp source-cpp">
<pre class="de1"><span class="kw1">namespace</span> std <span class="br0">{</span>
<span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> CharT, <span class="kw1">class</span> Traits <span class="sy1">=</span> char_traits<span class="sy1">&lt;</span>CharT<span class="sy1">&gt;&gt;</span>
<span class="kw1">class</span> basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy4">::</span><span class="me2">sentry</span> <span class="br0">{</span>
<span class="kw4">bool</span> ok_<span class="sy4">;</span> <span class="co1">// &#20165;&#29992;&#20110;&#38416;&#37322;</span>
<span class="kw1">public</span><span class="sy4">:</span>
<span class="kw1">explicit</span> sentry<span class="br0">(</span>basic_ostream<span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> os<span class="br0">)</span><span class="sy4">;</span>
~sentry<span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<span class="kw1">explicit</span> operator <span class="kw4">bool</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="br0">{</span> <span class="kw1">return</span> ok_<span class="sy4">;</span> <span class="br0">}</span>
sentry<span class="br0">(</span><span class="kw4">const</span> sentry<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
sentry<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> sentry<span class="sy3">&amp;</span><span class="br0">)</span> <span class="sy1">=</span> delete<span class="sy4">;</span>
<span class="br0">}</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
</div>
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