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std::future_category

科技促进发展：未来[医]范畴

Defined in header ​​
const std::error_category& future_category(​(since C++11)

获取对静态错误类别对象的引用，以获取与期货和承诺相关的错误。对象需要重写虚拟函数。error_category::name()返回指向字符串的指针"future"它用于识别类型异常中提供的错误代码。std::future_error...

参数

%280%29

返回值

派生为未指定运行时类型的静态对象的引用。std::error_category...

例外

noexcept规格：

noexcept

例

另见

future_errc (C++11)identifies the future error codes (enum)
future_error (C++11)reports an error related to futures or promises (class)
error_category (C++11)base class for error categories (class)

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