std::error_condition
Defined in header <system_error> | | |
|---|---|---|
class error_condition; | | (since C++11) |
std::error_condition是与平台无关的错误代码。就像std::error_code，则由整数值和std::error_category，但不像std::error_code，该值不依赖于平台。
典型实现包含一个整数数据成员%28值%29和指向std::error_category...
成员函数
(constructor) | constructs an error_condition (public member function) |
|---|---|
operator= | replaces the contents (public member function) |
assign | replaces the contents (public member function) |
clear | sets the error_condition to value 0 in generic_category (public member function) |
value | obtains the value of the error_condition (public member function) |
category | obtains the error_category for this error_condition (public member function) |
message | obtains the explanatory string (public member function) |
operator bool | checks if the value is non-zero (public member function) |
非会员职能
operator==operator!=operator< | compares error_conditions and error_codes (function) |
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帮助者类
is_error_condition_enum (C++11) | identifies an enumeration as an std::error_condition (class template) |
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std::hash<std::error_condition> (C++17) | hash support for std::error_condition (class template specialization) |
另见
error_code (C++11) | holds a platform-dependent error code (class) |
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error_category (C++11) | base class for error categories (class) |
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