66 lines
3.8 KiB
HTML
66 lines
3.8 KiB
HTML
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<title>std::experimental::make_observer</title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_experimental_observer_ptr_make_observer skin-cppreference2 action-view cpp-navbar">
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::experimental::</span>make_observer</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-observer_ptr.html">observer ptr</a></span></div>
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<div>定义于头文件 <code><a href="https://zh.cppreference.com/mwiki/index.php?title=cpp/header/experimental/memory&action=edit&redlink=1" class="new" title="cpp/header/experimental/memory（页面不存在）"><experimental/memory></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> W<span class="sy1">></span><br />
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<a href="cpp-experimental-observer_ptr.html"><span class="kw2425">std::<span class="me2">experimental</span><span class="sy4">::</span><span class="me2">observer_ptr</span></span></a><span class="sy1"><</span>W<span class="sy1">></span> make_observer<span class="br0">(</span>W<span class="sy2">*</span> p<span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(库基础 TS v2)</span></td>
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<p>创建 <code>observer_ptr</code> 对象，从函数实参的类型推导模板实参。</p>
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<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
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<table class="t-par-begin">
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<td>p</td>
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<td>-</td>
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<td>指向要为 <code>observer_ptr</code> 对象所查看的对象</td>
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<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">返回值</span></h3>
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<p>如同以 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-experimental-observer_ptr.html"><span class="kw2425">std::<span class="me2">experimental</span><span class="sy4">::</span><span class="me2">observer_ptr</span></span></a><span class="sy1"><</span>W<span class="sy1">></span><span class="br0">(</span>p<span class="br0">)</span></span></span> 创建的 <code>observer_ptr</code> 对象。</p>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
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<td class="mbox-text" style="">本节未完成<br />
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原因：暂无示例</td>
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