58 lines
3.1 KiB
HTML
58 lines
3.1 KiB
HTML
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<title>std::make_error_code(std::errc)</title>
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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>make_error_code<span style="font-size:0.7em; line-height:130%">(std::errc)</span></h1>
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<div id="contentSub"><span class="subpages">< <a href="cpp.html">cpp</a>‎ | <a href="cpp-error.html">error</a>‎ | <a href="cpp-error-errc.html">errc</a></span></div>
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<div>定义于头文件 <code><a href="cpp-header-system_error.html"><system_error></a></code></div>
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<div><span class="mw-geshi cpp source-cpp"><a href="cpp-error-error_code.html"><span class="kw877">std::<span class="me2">error_code</span></span></a> make_error_code<span class="br0">(</span> <a href="cpp-error-errc.html"><span class="kw880">std::<span class="me2">errc</span></span></a> e <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-cxx11">(C++11 起)</span></td>
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<p>为 errc 枚举 <code>e</code> 创建 error_code 值。</p>
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<p>等价于 <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-error-error_code.html"><span class="kw877">std::<span class="me2">error_code</span></span></a><span class="br0">(</span><span class="kw1">static_cast</span><span class="sy1"><</span><span class="kw4">int</span><span class="sy1">></span><span class="br0">(</span>e<span class="br0">)</span>, <a href="cpp-error-generic_category.html"><span class="kw872">std::<span class="me2">generic_category</span></span></a><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span></span></span></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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<td>e</td>
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<td>-</td>
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<td>要为之创建 error_code 的错误码枚举</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>对应 <code>e</code> 的错误码。</p>
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