65 lines
4.5 KiB
HTML
65 lines
4.5 KiB
HTML
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<title>std::experimental::ranges::Copyable</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::experimental::ranges::</span>Copyable</h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-experimental.html">experimental</a>‎ | <a href="cpp-experimental-ranges.html">ranges</a></span></div>
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<div>定义于头文件 <code><a href="cpp-header-experimental-ranges-concepts.html"><experimental/ranges/concepts></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>concept <span class="kw4">bool</span> Copyable <span class="sy1">=</span><br />
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<a href="cpp-experimental-ranges-concepts-CopyConstructible.html"><span class="kw2551">ranges::<span class="me2">CopyConstructible</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> <span class="sy3">&&</span><br />
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<a href="cpp-experimental-ranges-concepts-Movable.html"><span class="kw2552">ranges::<span class="me2">Movable</span></span></a><span class="sy1"><</span>T<span class="sy1">></span> <span class="sy3">&&</span><br /></p>
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<a href="cpp-experimental-ranges-concepts-Assignable.html"><span class="kw2538">ranges::<span class="me2">Assignable</span></span></a><span class="sy1"><</span>T<span class="sy3">&</span>, <span class="kw4">const</span> T<span class="sy3">&</span><span class="sy1">></span><span class="sy4">;</span></div>
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<p>概念 <code>Copyable<T></code> 指定 <code>T</code> 为 <a href="cpp-experimental-ranges-concepts-Movable.html"><code>Movable</code></a> 对象类型，并且亦能复制（即它支持复制构造和复制赋值）。</p>
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<h3><span class="mw-headline" id=".E6.B3.A8.E8.A7.A3">注解</span></h3>
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<p><code>Copyable<T></code> 亦有意要求 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-experimental-ranges-concepts-Assignable.html"><span class="kw2538">ranges::<span class="me2">Assignable</span></span></a><span class="sy1"><</span>T<span class="sy3">&</span>, <span class="kw4">const</span> T<span class="sy1">></span></span></span> （从 const 右值赋值）和 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-experimental-ranges-concepts-Assignable.html"><span class="kw2538">ranges::<span class="me2">Assignable</span></span></a><span class="sy1"><</span>T<span class="sy3">&</span>, T<span class="sy3">&</span><span class="sy1">></span></span></span> （从非 const 左值赋值）得到满足。</p>
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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
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<div><a href="cpp-experimental-ranges-concepts-Movable.html"><span class="t-lines"><span>Movable</span></span></a></div>
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<td>指定该类型的对象能被移动和交换<br />
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<span class="t-mark">(概念)</span></td>
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