392 lines
35 KiB
HTML
392 lines
35 KiB
HTML
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<title>operator+,-,*,/ (std::complex)</title>
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<h1 id="firstHeading" class="firstHeading">operator+,-,*,/ <span style="font-size:0.7em; line-height:130%">(std::complex)</span></h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-numeric.html">numeric</a>‎ | <a href="cpp-numeric-complex.html">complex</a></span></div>
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<td rowspan="142">(1)</td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">+</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
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<tr class="t-dcl t-since-cxx20">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<span class="kw4">constexpr</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">+</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<td rowspan="142">(2)</td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">+</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <span class="kw4">const</span> T<span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
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<tr class="t-dcl t-since-cxx20">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<span class="kw4">constexpr</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">+</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <span class="kw4">const</span> T<span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<td rowspan="142">(3)</td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">+</span><span class="br0">(</span> <span class="kw4">const</span> T<span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
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<tr class="t-dcl t-since-cxx20">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<span class="kw4">constexpr</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">+</span><span class="br0">(</span> <span class="kw4">const</span> T<span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<td rowspan="142">(4)</td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">-</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
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<tr class="t-dcl t-since-cxx20">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<span class="kw4">constexpr</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">-</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<td rowspan="142">(5)</td>
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">-</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <span class="kw4">const</span> T<span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<span class="kw4">constexpr</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">-</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <span class="kw4">const</span> T<span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<td rowspan="142">(6)</td>
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">-</span><span class="br0">(</span> <span class="kw4">const</span> T<span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<span class="kw4">constexpr</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">-</span><span class="br0">(</span> <span class="kw4">const</span> T<span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<td rowspan="142">(7)</td>
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<td></td>
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</tr>
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<tr class="t-dcl t-until-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">*</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
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</tr>
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<tr class="t-dcl t-since-cxx20">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<span class="kw4">constexpr</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">*</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<td rowspan="142">(8)</td>
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<td>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">*</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <span class="kw4">const</span> T<span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
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<tr class="t-dcl t-since-cxx20">
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
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<span class="kw4">constexpr</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">*</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <span class="kw4">const</span> T<span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
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|
</td>
|
|
<td class="t-dcl-nopad"></td>
|
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
|
</tr>
|
|
</tbody>
|
|
<tbody></tbody>
|
|
<tbody class="t-dcl-rev t-dcl-rev-num">
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<tr class="t-dcl-rev-aux">
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<td></td>
|
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<td rowspan="142">(9)</td>
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<td></td>
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</tr>
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<tr class="t-dcl t-until-cxx20">
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<td>
|
|
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
|
|
<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">*</span><span class="br0">(</span> <span class="kw4">const</span> T<span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
|
|
</td>
|
|
<td class="t-dcl-nopad"></td>
|
|
<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
|
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</tr>
|
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<tr class="t-dcl t-since-cxx20">
|
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<td>
|
|
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
|
|
<span class="kw4">constexpr</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">*</span><span class="br0">(</span> <span class="kw4">const</span> T<span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
|
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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</tr>
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</tbody>
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<tbody></tbody>
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<tbody class="t-dcl-rev t-dcl-rev-num">
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<tr class="t-dcl-rev-aux">
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<td></td>
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<td rowspan="142">(10)</td>
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<td></td>
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</tr>
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<tr class="t-dcl t-until-cxx20">
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<td>
|
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
|
|
<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">/</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
|
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</td>
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<td class="t-dcl-nopad"></td>
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<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
|
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</tr>
|
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<tr class="t-dcl t-since-cxx20">
|
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<td>
|
|
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
|
|
<span class="kw4">constexpr</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">/</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
|
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</td>
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<td class="t-dcl-nopad"></td>
|
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
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</tr>
|
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</tbody>
|
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<tbody></tbody>
|
|
<tbody class="t-dcl-rev t-dcl-rev-num">
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<tr class="t-dcl-rev-aux">
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<td></td>
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<td rowspan="142">(11)</td>
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<td></td>
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</tr>
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<tr class="t-dcl t-until-cxx20">
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<td>
|
|
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
|
|
<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">/</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <span class="kw4">const</span> T<span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
|
|
</td>
|
|
<td class="t-dcl-nopad"></td>
|
|
<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
|
|
</tr>
|
|
<tr class="t-dcl t-since-cxx20">
|
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<td>
|
|
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
|
|
<span class="kw4">constexpr</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">/</span><span class="br0">(</span> <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs, <span class="kw4">const</span> T<span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
|
|
</td>
|
|
<td class="t-dcl-nopad"></td>
|
|
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
|
</tr>
|
|
</tbody>
|
|
<tbody></tbody>
|
|
<tbody class="t-dcl-rev t-dcl-rev-num">
|
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<tr class="t-dcl-rev-aux">
|
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<td></td>
|
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<td rowspan="142">(12)</td>
|
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<td></td>
|
|
</tr>
|
|
<tr class="t-dcl t-until-cxx20">
|
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<td>
|
|
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
|
|
<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">/</span><span class="br0">(</span> <span class="kw4">const</span> T<span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
|
|
</td>
|
|
<td class="t-dcl-nopad"></td>
|
|
<td><span class="t-mark-rev t-until-cxx20">(C++20 前)</span></td>
|
|
</tr>
|
|
<tr class="t-dcl t-since-cxx20">
|
|
<td>
|
|
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span><span class="sy1"><</span> <span class="kw1">class</span> T <span class="sy1">></span><br />
|
|
<span class="kw4">constexpr</span> <a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy2">/</span><span class="br0">(</span> <span class="kw4">const</span> T<span class="sy3">&</span> lhs, <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"><</span>T<span class="sy1">></span><span class="sy3">&</span> rhs<span class="br0">)</span><span class="sy4">;</span></span></div>
|
|
</td>
|
|
<td class="t-dcl-nopad"></td>
|
|
<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
|
|
</tr>
|
|
</tbody>
|
|
<tbody>
|
|
<tr class="t-dcl-sep">
|
|
<td></td>
|
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<td></td>
|
|
<td></td>
|
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</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>为复数运算和混合复数/标量运算实现二元运算符。将标量当做拥有等于参数的实部和设为零的虚部的复数。</p>
|
|
<div class="t-li1"><span class="t-li">1-3)</span> 返回其参数的和</div>
|
|
<div class="t-li1"><span class="t-li">4-6)</span> 返回从 <code>lhs</code> 减去 <code>rhs</code> 的结果</div>
|
|
<div class="t-li1"><span class="t-li">7-9)</span> 将参数相乘</div>
|
|
<div class="t-li1"><span class="t-li">10-12)</span> <code>lhs</code> 除以 <code>rhs</code></div>
|
|
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
|
|
<table class="t-par-begin">
|
|
<tr class="t-par">
|
|
<td>lhs, rhs</td>
|
|
<td>-</td>
|
|
<td>参数：两个复数，或一个复数与一个拥有匹配类型的标量（ <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">float</span></span></span> 、 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">double</span></span></span> 、 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">long</span> <span class="kw4">double</span></span></span> ）</td>
|
|
</tr>
|
|
</table>
|
|
<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">返回值</span></h3>
|
|
<div class="t-li1"><span class="t-li">1-3)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="br0">(</span>lhs<span class="br0">)</span> <span class="sy2">+</span><span class="sy1">=</span> rhs</span></span></div>
|
|
<div class="t-li1"><span class="t-li">4-6)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="br0">(</span>lhs<span class="br0">)</span> <span class="sy2">-</span><span class="sy1">=</span> rhs</span></span></div>
|
|
<div class="t-li1"><span class="t-li">7-9)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="br0">(</span>lhs<span class="br0">)</span> <span class="sy2">*</span><span class="sy1">=</span> rhs</span></span></div>
|
|
<div class="t-li1"><span class="t-li">10-12)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="br0">(</span>lhs<span class="br0">)</span> <span class="sy2">/</span><span class="sy1">=</span> rhs</span></span></div>
|
|
<h3><span class="mw-headline" id=".E6.B3.A8.E6.84.8F">注意</span></h3>
|
|
<p><a href="cpp-language-template_argument_deduction.html">模板实参推导</a>不考虑隐式转换，故这些运算符不能用于整数/复数混合运算。所有情况下，标量必须与复数的底层类型拥有相同类型。</p>
|
|
<p>GCC 标志 "-fcx-limited-range" （包含于 "-ffast-math" ）更改复数乘/除的行为，移除浮点极端情况的检查。这会影响向量化。</p>
|
|
<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
|
|
<div class="t-example">
|
|
<div class="t-example-live-link"></div>
|
|
<div dir="ltr" class="mw-geshi" style="text-align: left;">
|
|
<div class="cpp source-cpp">
|
|
<pre class="de1"><span class="co2">#include <iostream></span>
|
|
<span class="co2">#include <complex></span>
|
|
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
|
|
<span class="br0">{</span>
|
|
<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span><span class="kw4">double</span><span class="sy1">></span> c2<span class="br0">(</span><span class="nu0">2</span>, <span class="nu0">0</span><span class="br0">)</span><span class="sy4">;</span>
|
|
<a href="cpp-numeric-complex.html"><span class="kw1472">std::<span class="me2">complex</span></span></a><span class="sy1"><</span><span class="kw4">double</span><span class="sy1">></span> ci<span class="br0">(</span><span class="nu0">0</span>, <span class="nu0">1</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"><<</span> ci <span class="sy1"><<</span> <span class="st0">" + "</span> <span class="sy1"><<</span> c2 <span class="sy1"><<</span> <span class="st0">" = "</span> <span class="sy1"><<</span> ci<span class="sy2">+</span>c2 <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span>
|
|
<span class="sy1"><<</span> ci <span class="sy1"><<</span> <span class="st0">" * "</span> <span class="sy1"><<</span> ci <span class="sy1"><<</span> <span class="st0">" = "</span> <span class="sy1"><<</span> ci<span class="sy2">*</span>ci <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span>
|
|
<span class="sy1"><<</span> ci <span class="sy1"><<</span> <span class="st0">" + "</span> <span class="sy1"><<</span> c2 <span class="sy1"><<</span> <span class="st0">" / "</span> <span class="sy1"><<</span> ci <span class="sy1"><<</span> <span class="st0">" = "</span> <span class="sy1"><<</span> ci<span class="sy2">+</span>c2<span class="sy2">/</span>ci <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span>
|
|
<span class="sy1"><<</span> <span class="nu0">1</span> <span class="sy1"><<</span> <span class="st0">" / "</span> <span class="sy1"><<</span> ci <span class="sy1"><<</span> <span class="st0">" = "</span> <span class="sy1"><<</span> <span class="nu0">1</span>.<span class="sy2">/</span>ci <span class="sy1"><<</span> <span class="st0">'<span class="es1">\n</span>'</span><span class="sy4">;</span>
|
|
|
|
<span class="co1">// std::cout << 1.f/ci; // 编译错误</span>
|
|
<span class="co1">// std::cout << 1/ci; // 编译错误</span>
|
|
<span class="br0">}</span></pre></div>
|
|
</div>
|
|
<p>输出：</p>
|
|
<div dir="ltr" class="mw-geshi" style="text-align: left;">
|
|
<div class="text source-text">
|
|
<pre class="de1">(0,1) + (2,0) = (2,1)
|
|
(0,1) * (0,1) = (-1,0)
|
|
(0,1) + (2,0) / (0,1) = (0,-1)
|
|
1 / (0,1) = (0,-1)</pre></div>
|
|
</div>
|
|
</div>
|
|
<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
|
|
<table class="t-dsc-begin">
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="cpp-numeric-complex-operator_arith.html"><span class="t-lines"><span>operator+=</span><span>operator-=</span><span>operator*=</span><span>operator/=</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>两个复数，或一个复数与一个标量的复合赋值<br />
|
|
<span class="t-mark">(公开成员函数)</span></td>
|
|
</tr>
|
|
<tr class="t-dsc">
|
|
<td>
|
|
<div class="t-dsc-member-div">
|
|
<div><a href="cpp-numeric-complex-operator_arith2.html"><span class="t-lines"><span>operator+</span><span>operator-</span></span></a></div>
|
|
</div>
|
|
</td>
|
|
<td>对复数运用一元运算符<br />
|
|
<span class="t-mark">(函数模板)</span></td>
|
|
</tr>
|
|
</table>
|
|
</div>
|
|
<div class="visualClear"></div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</body>
|
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</html>
|