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<h1 id="firstHeading" class="firstHeading">operator&lt;&lt;,&gt;&gt;<span class="t-dsc-small">(std::complex)</span></h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-numeric.html">numeric</a>&lrm; | <a href="cpp-numeric-complex.html">complex</a></span></div>
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<div>&#23450;&#20041;&#20110;&#22836;&#25991;&#20214; <code><a href="cpp-header-complex.html">&lt;complex&gt;</a></code></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> CharT, <span class="kw1">class</span> Traits<span class="sy1">&gt;</span><br /></span>
<p><a href="cpp-io-basic_ostream.html"><span class="kw1715">std::<span class="me2">basic_ostream</span></span></a><span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span><br />
&nbsp; &nbsp; operator<span class="sy1">&lt;&lt;</span><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">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> os,<br /></p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="kw4">const</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x<span class="br0">)</span><span class="sy4">;</span></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> CharT, <span class="kw1">class</span> Traits<span class="sy1">&gt;</span><br /></span>
<p><a href="cpp-io-basic_istream.html"><span class="kw1713">std::<span class="me2">basic_istream</span></span></a><span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span><br />
&nbsp; &nbsp; operator<span class="sy1">&gt;&gt;</span><span class="br0">(</span><a href="cpp-io-basic_istream.html"><span class="kw1713">std::<span class="me2">basic_istream</span></span></a><span class="sy1">&lt;</span>CharT, Traits<span class="sy1">&gt;</span><span class="sy3">&amp;</span> is,<br /></p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x<span class="br0">)</span><span class="sy4">;</span></div>
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<td>(2)</td>
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<div class="t-li1"><span class="t-li">1)</span> &#20197; <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="br0">(</span>real,imaginary<span class="br0">)</span></span></span> &#26684;&#24335;&#20889;&#20837;&#22797;&#25968;&#21040; <span class="t-c"><span class="mw-geshi cpp source-cpp">os</span></span> &#12290;</div>
<div class="t-li1"><span class="t-li">2)</span> &#20174; <span class="t-c"><span class="mw-geshi cpp source-cpp">is</span></span> &#35835;&#21462;&#22797;&#25968;&#12290;&#21463;&#25903;&#25345;&#26684;&#24335;&#20026;
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<li><span class="t-c"><span class="mw-geshi cpp source-cpp">real</span></span></li>
<li><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="br0">(</span>real<span class="br0">)</span></span></span></li>
<li><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="br0">(</span>real,imaginary<span class="br0">)</span></span></span></li>
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<p>&#20854;&#20013; <span class="t-c"><span class="mw-geshi cpp source-cpp">real</span></span> &#19982; <span class="t-c"><span class="mw-geshi cpp source-cpp">imaginary</span></span> &#30340;&#36755;&#20837;&#24517;&#39035;&#21487;&#36716;&#25442;&#20026; <span class="t-c"><span class="mw-geshi cpp source-cpp">T</span></span> &#12290;</p>
&#33509;&#38169;&#35823;&#21457;&#29983;&#21017;&#35843;&#29992; <span class="t-c"><span class="mw-geshi cpp source-cpp">is.<span class="me1">setstate</span><span class="br0">(</span>ios_base<span class="sy4">::</span><span class="me2">failbit</span><span class="br0">)</span></span></span></div>
<h3><span class="mw-headline" id=".E5.BC.82.E5.B8.B8">&#24322;&#24120;</span></h3>
<p>&#27969;&#38169;&#35823;&#26102;&#21487;&#33021;&#25243; <span class="t-lc"><a href="cpp-io-ios_base-failure.html">std::ios_base::failure</a></span> &#12290;</p>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
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<td>os</td>
<td>-</td>
<td>&#23383;&#31526;&#36755;&#20986;&#27969;</td>
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<td>is</td>
<td>-</td>
<td>&#23383;&#31526;&#36755;&#20837;&#27969;</td>
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<td>x</td>
<td>-</td>
<td>&#35201;&#34987;&#25554;&#20837;&#25110;&#37322;&#20986;&#30340;&#22797;&#25968;</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>
<div class="t-li1"><span class="t-li">1)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">os</span></span></div>
<div class="t-li1"><span class="t-li">2)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">is</span></span></div>
<h3><span class="mw-headline" id=".E6.B3.A8.E6.84.8F">&#27880;&#24847;</span></h3>
<div class="t-li1"><span class="t-li">1)</span> &#22240;&#20026;&#36887;&#21495;&#21487;&#33021;&#34987;&#24403;&#21069;&#26412;&#22320;&#29615;&#22659;&#29992;&#20316;&#23567;&#25968;&#28857;&#65292;&#25925;&#36755;&#20986;&#21487;&#33021;&#26377;&#27495;&#20041;&#12290;&#36825;&#21487;&#29992;&#24378;&#21046;&#26174;&#31034;&#23567;&#25968;&#28857;&#30340; <span class="t-lc"><a href="cpp-io-manip-showpoint.html">std::showpoint</a></span> &#35299;&#20915;&#12290;</div>
<div class="t-li1"><span class="t-li">2)</span> &#36755;&#20837;&#20197;&#31616;&#21333;&#26684;&#24335;&#21270;&#30340;&#37322;&#20986;&#36827;&#34892;&#12290;&#31354;&#30333;&#31526;&#30340;&#36339;&#36807;&#23545;&#20110;&#23427;&#20204;&#27599;&#19968;&#39033;&#37117;&#30456;&#21516;&#12290;</div>
<h3><span class="mw-headline" id=".E5.8F.AF.E8.83.BD.E7.9A.84.E5.AE.9E.E7.8E.B0">&#21487;&#33021;&#30340;&#23454;&#29616;</span></h3>
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<pre class="de1"><span class="kw1">template</span><span class="sy1">&lt;</span><span class="kw1">class</span> T, <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> o, <span class="kw4">const</span> complex<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> x<span class="br0">)</span> <span class="br0">{</span>
basic_ostringstream<span class="sy1">&lt;</span>charT, traits<span class="sy1">&gt;</span> s<span class="sy4">;</span>
s.<span class="me1">flags</span><span class="br0">(</span>o.<span class="me1">flags</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
s.<span class="me1">imbue</span><span class="br0">(</span>o.<span class="me1">getloc</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
s.<span class="me1">precision</span><span class="br0">(</span>o.<span class="me1">precision</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span><span class="sy4">;</span>
s <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;(&#39;</span> <span class="sy1">&lt;&lt;</span> x.<span class="me1">real</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;,&quot;</span> <span class="sy1">&lt;&lt;</span> x.<span class="me1">imag</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;)&#39;</span><span class="sy4">;</span>
<span class="kw1">return</span> o <span class="sy1">&lt;&lt;</span> s.<span class="me1">str</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span></pre></div>
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