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std::error_code::category

STD：错误[医]代码：：类别

const std::error_category& category() const;​(since C++11)

返回错误值的错误类别。

参数

%280%29

返回值

错误值的错误类别。

例外

noexcept规格：

noexcept

另见

valueobtains the value of the error_code (public member function)

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