83 lines
6.4 KiB
HTML
83 lines
6.4 KiB
HTML
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<html lang="zh" dir="ltr" class="client-nojs" xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh">
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<title>std::experimental::unique_resource<R, D>::operator*, std::experimental::unique_resource<R, D>::operator-></title>
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<body class="mediawiki ltr sitedir-ltr ns-0 ns-subject page-cpp_experimental_unique_resource_operator 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::unique_resource<R, D>::</span>operator*, <span style="font-size:0.7em; line-height:130%">std::experimental::unique_resource<R, D>::</span>operator-></h1>
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<div id="bodyContent">
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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-unique_resource.html">unique resource</a></span></div>
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<div id="mw-content-text" lang="zh" dir="ltr" class="mw-content-ltr" xml:lang="zh">
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<table class="t-dcl-begin">
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<tbody>
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<tr class="t-dcl t-since-libfund_ts_3">
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<td>
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<div><span class="mw-geshi cpp source-cpp"><a href="cpp-types-add_reference.html"><span class="kw609">std::<span class="me2">add_lvalue_reference_t</span></span></a><span class="sy1"><</span><a href="cpp-types-remove_pointer.html"><span class="kw613">std::<span class="me2">remove_pointer_t</span></span></a><span class="sy1"><</span>R<span class="sy1">>></span><br />
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operator<span class="sy2">*</span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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</td>
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<td>(1)</td>
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<td><span class="t-mark-rev t-since-libfund-ts-3 t-mark-ts">(库基础 TS v3)</span></td>
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</tr>
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<tr class="t-dcl t-since-libfund_ts_3">
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<td>
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<div><span class="mw-geshi cpp source-cpp">R operator<span class="sy2">-</span><span class="sy1">></span><span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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</td>
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<td>(2)</td>
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<td><span class="t-mark-rev t-since-libfund-ts-3 t-mark-ts">(库基础 TS v3)</span></td>
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</tr>
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<tr class="t-dcl-sep">
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<td></td>
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<td></td>
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<td></td>
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</tr>
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</tbody>
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<div class="t-li1"><span class="t-li">1)</span> 访问作为指针的底层资源柄所指向的对象或函数。此函数仅若 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-types-is_pointer.html"><span class="kw463">std::<span class="me2">is_pointer_v</span></span></a><span class="sy1"><</span>R<span class="sy1">></span></span></span> 为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> 且 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-types-is_void.html"><span class="kw451">std::<span class="me2">is_void_v</span></span></a><span class="sy1"><</span><a href="cpp-types-remove_pointer.html"><span class="kw613">std::<span class="me2">remove_pointer_t</span></span></a><span class="sy1"><</span>R<span class="sy1">>></span></span></span> 为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">false</span></span></span> 才参与重载决议。若资源柄不指向对象或函数，则行为未定义。</div>
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<div class="t-li1"><span class="t-li">2)</span> 获取作为指针的底层资源柄的副本。此函数仅若 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-types-is_pointer.html"><span class="kw463">std::<span class="me2">is_pointer_v</span></span></a><span class="sy1"><</span>R<span class="sy1">></span></span></span> 为 <span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="kw2">true</span></span></span> 才参与重载决议。常用返回值访问被指向的对象。</div>
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<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">参数</span></h3>
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<p>（无）</p>
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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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<div class="t-li1"><span class="t-li">1)</span> 底层资源柄所指向的函数或对象。</div>
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<div class="t-li1"><span class="t-li">2)</span> 底层资源柄的副本。</div>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">示例</span></h3>
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<table class="metadata plainlinks ambox mbox-small-left ambox-notice" style="">
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<td class="mbox-empty-cell"></td>
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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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<h3><span class="mw-headline" id=".E5.8F.82.E9.98.85">参阅</span></h3>
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<td>
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<div class="t-dsc-member-div">
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<div><a href="cpp-experimental-unique_resource-get.html"><span class="t-lines"><span>get</span></span></a></div>
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</div>
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</td>
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<td>访问底层资源柄<br />
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<span class="t-mark">(公开成员函数)</span></td>
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</tr>
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<tr class="t-dsc">
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<div class="t-dsc-member-div">
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<div><a href="cpp-memory-unique_ptr-operator*.html"><span class="t-lines"><span>operator*</span><span>operator-></span></span></a></div>
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</div>
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</td>
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<td>解引用指向被管理对象的指针<br />
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<span class="t-mark">(<code>std::unique_ptr<T,Deleter></code> 的公开成员函数)</span></td>
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</tr>
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</table>
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</div>
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