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49 KiB
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246 lines
49 KiB
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<title>operator+,-,*,/,%,&,|,^,<<,>>,&&,|| (std::valarray)</title>
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<h1 id="firstHeading" class="firstHeading">operator+,-,*,/,%,&,|,^,<<,>>,&&,|| <span style="font-size:0.7em; line-height:130%">(std::valarray)</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-valarray.html">valarray</a></span></div>
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<div>定义于头文件 <code><a href="cpp-header-valarray.html"><valarray></a></code></div>
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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 /></span>
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<p><a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy3">&</span> <span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy3">|</span> <span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy3">^</span> <span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy1"><<</span><span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy1">>></span><span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span><span class="kw4">bool</span><span class="sy1">></span> operator<span class="sy3">&&</span><span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<span class="kw1">template</span> <span class="sy1"><</span><span class="kw1">class</span> T<span class="sy1">></span><br /></p>
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<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span><span class="kw4">bool</span><span class="sy1">></span> operator<span class="sy3">||</span><span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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></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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<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>
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<p><a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val,<br />
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<span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val,<br />
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<span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val,<br />
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<span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val,<br />
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<span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val,<br />
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<span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy3">&</span> <span class="br0">(</span><span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val,<br />
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<span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy3">|</span> <span class="br0">(</span><span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val,<br />
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<span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy3">^</span> <span class="br0">(</span><span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val,<br />
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<span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy1"><<</span><span class="br0">(</span><span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val,<br />
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<span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy1">>></span><span class="br0">(</span><span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val,<br />
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<span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span><span class="kw4">bool</span><span class="sy1">></span> operator<span class="sy3">&&</span><span class="br0">(</span><span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val,<br />
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<span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span><span class="kw4">bool</span><span class="sy1">></span> operator<span class="sy3">||</span><span class="br0">(</span><span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val,<br /></p>
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<span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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></div>
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</td>
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<td>(2)</td>
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<td class="t-dcl-nopad"></td>
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</tr>
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<tr class="t-dcl">
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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 /></span>
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<p><a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs,<br />
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<span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val<span class="br0">)</span><span class="sy4">;</span><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs,<br />
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<span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val<span class="br0">)</span><span class="sy4">;</span><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs,<br />
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<span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val<span class="br0">)</span><span class="sy4">;</span><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs,<br />
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<span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val<span class="br0">)</span><span class="sy4">;</span><br />
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<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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</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-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs,<br />
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<span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val<span class="br0">)</span><span class="sy4">;</span><br />
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<span class="kw1">template</span> <span class="sy1"><</span><span class="kw1">class</span> T<span class="sy1">></span><br />
|
|
<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy3">&</span> <span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs,<br />
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|
<span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val<span class="br0">)</span><span class="sy4">;</span><br />
|
|
<span class="kw1">template</span> <span class="sy1"><</span><span class="kw1">class</span> T<span class="sy1">></span><br />
|
|
<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy3">|</span> <span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs,<br />
|
|
<span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val<span class="br0">)</span><span class="sy4">;</span><br />
|
|
<span class="kw1">template</span> <span class="sy1"><</span><span class="kw1">class</span> T<span class="sy1">></span><br />
|
|
<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy3">^</span> <span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs,<br />
|
|
<span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val<span class="br0">)</span><span class="sy4">;</span><br />
|
|
<span class="kw1">template</span> <span class="sy1"><</span><span class="kw1">class</span> T<span class="sy1">></span><br />
|
|
<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy1"><<</span><span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs,<br />
|
|
<span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val<span class="br0">)</span><span class="sy4">;</span><br />
|
|
<span class="kw1">template</span> <span class="sy1"><</span><span class="kw1">class</span> T<span class="sy1">></span><br />
|
|
<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> operator<span class="sy1">>></span><span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs,<br />
|
|
<span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val<span class="br0">)</span><span class="sy4">;</span><br />
|
|
<span class="kw1">template</span> <span class="sy1"><</span><span class="kw1">class</span> T<span class="sy1">></span><br />
|
|
<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span><span class="kw4">bool</span><span class="sy1">></span> operator<span class="sy3">&&</span><span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs,<br />
|
|
<span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val<span class="br0">)</span><span class="sy4">;</span><br />
|
|
<span class="kw1">template</span> <span class="sy1"><</span><span class="kw1">class</span> T<span class="sy1">></span><br />
|
|
<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span><span class="kw4">bool</span><span class="sy1">></span> operator<span class="sy3">||</span><span class="br0">(</span><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy3">&</span> lhs,<br /></p>
|
|
<span class="kw4">const</span> <span class="kw1">typename</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span>T<span class="sy1">></span><span class="sy4">::</span><span class="me2">value_type</span> <span class="sy3">&</span> val<span class="br0">)</span><span class="sy4">;</span></div>
|
|
</td>
|
|
<td>(3)</td>
|
|
<td class="t-dcl-nopad"></td>
|
|
</tr>
|
|
<tr class="t-dcl-sep">
|
|
<td></td>
|
|
<td></td>
|
|
<td></td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>应用二元运算符到二个 valarray 的对应元素，或一个 valarray 和一个值。</p>
|
|
<div class="t-li1"><span class="t-li">1)</span> 运算符作用于拥有同样大小的 valarray 并返回大小等于参数的 valarray ，将运算应用到二个参数的每个元素。</div>
|
|
<div class="t-li1"><span class="t-li">2,3)</span> 在 valarray 的每个元素和标量间应用运算符。</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>rhs</td>
|
|
<td>-</td>
|
|
<td>数值数组</td>
|
|
</tr>
|
|
<tr class="t-par">
|
|
<td>lhs</td>
|
|
<td>-</td>
|
|
<td>数值数组</td>
|
|
</tr>
|
|
<tr class="t-par">
|
|
<td>val</td>
|
|
<td>-</td>
|
|
<td>类型 <code><b>T</b></code> 的值</td>
|
|
</tr>
|
|
</table>
|
|
<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">返回值</span></h3>
|
|
<p>大小等于参数的 valarray 。</p>
|
|
<h3><span class="mw-headline" id=".E6.B3.A8.E8.A7.A3">注解</span></h3>
|
|
<p>若二个参数是不同大小的 valarray 则行为未定义。</p>
|
|
<p>函数能实现为拥有不同于 <span class="t-lc"><a href="cpp-numeric-valarray.html">std::valarray</a></span> 的返回类型。此情况下，替换类型拥有下列属性：</p>
|
|
<dl>
|
|
<dd>
|
|
<ul>
|
|
<li>提供 <span class="t-lc"><a href="cpp-numeric-valarray.html">std::valarray</a></span> 的所有 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">const</span></span></span> 成员函数。</li>
|
|
<li>能从替换类型构造 <span class="t-lc"><a href="cpp-numeric-valarray.html">std::valarray</a></span> 、 <span class="t-lc"><a href="cpp-numeric-valarray-slice_array.html">std::slice_array</a></span> 、 <span class="t-lc"><a href="cpp-numeric-valarray-gslice_array.html">std::gslice_array</a></span> 、 <span class="t-lc"><a href="cpp-numeric-valarray-mask_array.html">std::mask_array</a></span> 和 <span class="t-lc"><a href="cpp-numeric-valarray-indirect_array.html">std::indirect_array</a></span> 。</li>
|
|
<li>所有接受一个 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy3">&</span></span></span> 类型参数的函数<span class="t-rev-inl t-since-cxx11"><span>，除了 <a href="cpp-numeric-valarray-begin2.html"><tt>begin()</tt></a> 和 <a href="cpp-numeric-valarray-end2.html"><tt>end()</tt></a></span> <span><span class="t-mark-rev t-since-cxx11">(C++11 起)</span></span></span>也应该接受替换类型。</li>
|
|
<li>所有接受二个 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy3">&</span></span></span> 类型参数的函数都应该接受 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw4">const</span> <a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy3">&</span></span></span> 和替换类型的每种组合。</li>
|
|
<li>返回类型添加不多于二层嵌套在最深层嵌套的参数类型上的模板。</li>
|
|
</ul>
|
|
</dd>
|
|
</dl>
|
|
<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
|
|
<div class="t-example">
|
|
<p>寻找多个二次方程的实根。</p>
|
|
<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 <cstddef></span>
|
|
<span class="co2">#include <valarray></span>
|
|
<span class="co2">#include <iostream></span>
|
|
|
|
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
|
|
<span class="br0">{</span>
|
|
<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span><span class="kw4">double</span><span class="sy1">></span> a<span class="br0">(</span><span class="nu0">1</span>, <span class="nu0">8</span><span class="br0">)</span><span class="sy4">;</span>
|
|
<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span><span class="kw4">double</span><span class="sy1">></span> b<span class="br0">{</span><span class="nu0">1</span>, <span class="nu0">2</span>, <span class="nu0">3</span>, <span class="nu0">4</span>, <span class="nu0">5</span>, <span class="nu0">6</span>, <span class="nu0">7</span>, <span class="nu0">8</span><span class="br0">}</span><span class="sy4">;</span>
|
|
<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span><span class="kw4">double</span><span class="sy1">></span> c <span class="sy1">=</span> <span class="sy2">-</span>b<span class="sy4">;</span>
|
|
<span class="co1">// LWG3074 前字面量亦必须拥有 T 类型（此情况下为 double ）</span>
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<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span><span class="kw4">double</span><span class="sy1">></span> d <span class="sy1">=</span> <a href="cpp-numeric-math-sqrt.html"><span class="kw1329">std::<span class="me2">sqrt</span></span></a><span class="br0">(</span>b <span class="sy2">*</span> b <span class="sy2">-</span> <span class="nu16">4.0</span> <span class="sy2">*</span> a <span class="sy2">*</span> c<span class="br0">)</span><span class="sy4">;</span>
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<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span><span class="kw4">double</span><span class="sy1">></span> x1 <span class="sy1">=</span> <span class="br0">(</span><span class="sy2">-</span>b <span class="sy2">-</span> d<span class="br0">)</span> <span class="sy2">/</span> <span class="br0">(</span><span class="nu16">2.0</span> <span class="sy2">*</span> a<span class="br0">)</span><span class="sy4">;</span>
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<a href="cpp-numeric-valarray.html"><span class="kw1473">std::<span class="me2">valarray</span></span></a><span class="sy1"><</span><span class="kw4">double</span><span class="sy1">></span> x2 <span class="sy1">=</span> <span class="br0">(</span><span class="sy2">-</span>b <span class="sy2">+</span> d<span class="br0">)</span> <span class="sy2">/</span> <span class="br0">(</span><span class="nu16">2.0</span> <span class="sy2">*</span> a<span class="br0">)</span><span class="sy4">;</span>
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<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <span class="st0">"quadratic equation root 1, root 2"</span> <span class="sy1"><<</span> <span class="st0">"<span class="es1">\n</span>"</span><span class="sy4">;</span>
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<span class="kw1">for</span> <span class="br0">(</span><a href="cpp-types-size_t.html"><span class="kw100">std::<span class="me2">size_t</span></span></a> i <span class="sy1">=</span> <span class="nu0">0</span><span class="sy4">;</span> i <span class="sy1"><</span> a.<span class="me1">size</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span> <span class="sy2">++</span>i<span class="br0">)</span> <span class="br0">{</span>
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<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> a<span class="br0">[</span>i<span class="br0">]</span> <span class="sy1"><<</span> <span class="st0">"x<span class="es3">\u00B2</span> + "</span> <span class="sy1"><<</span> b<span class="br0">[</span>i<span class="br0">]</span> <span class="sy1"><<</span> <span class="st0">"x + "</span> <span class="sy1"><<</span> c<span class="br0">[</span>i<span class="br0">]</span> <span class="sy1"><<</span> <span class="st0">" = 0 "</span><span class="sy4">;</span>
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<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1"><<</span> <a href="cpp-io-manip-fixed.html"><span class="kw1784">std::<span class="me2">fixed</span></span></a> <span class="sy1"><<</span> x1<span class="br0">[</span>i<span class="br0">]</span> <span class="sy1"><<</span> <span class="st0">", "</span> <span class="sy1"><<</span> x2<span class="br0">[</span>i<span class="br0">]</span> <span class="sy1"><<</span> <a href="cpp-io-manip-fixed.html"><span class="kw1787">std::<span class="me2">defaultfloat</span></span></a> <span class="sy1"><<</span> <span class="st0">"<span class="es1">\n</span>"</span><span class="sy4">;</span>
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<span class="br0">}</span>
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<span class="br0">}</span></pre></div>
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</div>
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<p>输出：</p>
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<div dir="ltr" class="mw-geshi" style="text-align: left;">
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<div class="text source-text">
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<pre class="de1">quadratic equation root 1, root 2
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1x² + 1x + -1 = 0 -1.618034, 0.618034
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1x² + 2x + -2 = 0 -2.732051, 0.732051
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1x² + 3x + -3 = 0 -3.791288, 0.791288
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1x² + 4x + -4 = 0 -4.828427, 0.828427
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1x² + 5x + -5 = 0 -5.854102, 0.854102
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1x² + 6x + -6 = 0 -6.872983, 0.872983
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1x² + 7x + -7 = 0 -7.887482, 0.887482
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1x² + 8x + -8 = 0 -8.898979, 0.898979</pre></div>
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</div>
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</div>
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<h3><span class="mw-headline" id=".E7.BC.BA.E9.99.B7.E6.8A.A5.E5.91.8A">缺陷报告</span></h3>
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<p>下列更改行为的缺陷报告追溯地应用于以前出版的 C++ 标准。</p>
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<table class="dsctable" style="font-size:0.8em">
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<tr>
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<th>DR</th>
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<th>应用于</th>
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<th>出版时的行为</th>
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<th>正确行为</th>
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</tr>
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<tr>
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<td><a rel="nofollow" class="external text" href="https://cplusplus.github.io/LWG/issue3074">LWG 3074</a></td>
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<td>C++98</td>
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<td><span class="t-v">(2-3)</span> 从标量和 <code>valarray</code> 两者推导 <code>T</code> ，禁止混合类型的调用</td>
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<td>仅从 <code>valarray</code> 推导 <code>T</code></td>
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</tr>
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</table>
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</div>
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<div class="visualClear"></div>
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</div>
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</div>
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</div>
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</body>
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</html>
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