73 lines
4.2 KiB
HTML
73 lines
4.2 KiB
HTML
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>indirectly_copyable</h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-iterator.html">iterator</a></span></div>
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<div>定义于头文件 <code><a href="cpp-header-iterator.html"><iterator></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> In, <span class="kw1">class</span> Out<span class="sy1">></span><br /></span>
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<p>concept indirectly_copyable <span class="sy1">=</span><br />
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std<span class="sy4">::</span><span class="me2">indirectly_readable</span><span class="sy1"><</span>In<span class="sy1">></span> <span class="sy3">&&</span><br /></p>
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std<span class="sy4">::</span><span class="me2">indirectly_writable</span><span class="sy1"><</span>Out, iter_reference_t<span class="sy1"><</span>In<span class="sy1">>></span><span class="sy4">;</span></div>
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<td><span class="t-mark-rev t-since-cxx20">(C++20 起)</span></td>
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<p><code>indirectly_copyable</code> 概念指定 <a href="cpp-iterator-indirectly_readable.html"><code>indirectly_readable</code></a> 类型与 <a href="cpp-iterator-indirectly_writable.html"><code>indirectly_writable</code></a> 类型间的关系。 <code>indirectly_writable</code> 类型必须能直接复制 <code>indirectly_readable</code> 类型所引用的对象。</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-iterator-indirectly_movable.html"><span class="t-lines"><span>indirectly_movable</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
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<td>指定可从 <a href="cpp-iterator-indirectly_readable.html"><code>indirectly_readable</code></a> 类型移动值给 <a href="cpp-iterator-indirectly_writable.html"><code>indirectly_writable</code></a> 类型<br />
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<span class="t-mark">(概念)</span></td>
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<div><a href="cpp-iterator-indirectly_copyable_storable.html"><span class="t-lines"><span>indirectly_copyable_storable</span></span></a></div>
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<div><span class="t-lines"><span><span class="t-mark-rev t-since-cxx20">(C++20)</span></span></span></div>
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<td>指定可从 <a href="cpp-iterator-indirectly_readable.html"><code>indirectly_readable</code></a> 类型复制值给 <a href="cpp-iterator-indirectly_writable.html"><code>indirectly_writable</code></a> 类型，且该复制可以通过中间对象进行<br />
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<span class="t-mark">(概念)</span></td>
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