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std::error_category(3) C++ Standard Libary std::error_category(3) NAME std::error_category - std::error_category Synopsis Defined in header <system_error> class error_category; (since C++11) std::error_category serves as the base class for specific error cat- egory types, such as std::system_category, std::iostream_category, etc. Each specific category class defines the error_code - error_condition mapping and holds the ex- planatory strings for all error_conditions. The objects of error category classes are treated as singletons, passed by reference. Member functions constructor constructs an error_category (public member function) destructor destructs an error_category [virtual] (virtual public member function) operator= not copy assignable [deleted] (public member function) name obtains the name of the category [virtual] (virtual public member function) default_error_condition maps error_code to error_condition [virtual] (virtual public member function) equivalent compares error_code and error_condition for equivalence [virtual] (virtual public member function) message obtains the explanatory string [virtual] (virtual public member function) operator== operator!= operator< compares two error categories operator<=> (function) (removed in C++20) (removed in C++20) (C++20) Specific error categories See also error_condition holds a portable error code (C++11) (class) error_code holds a platform-dependent error code (C++11) (class) generic_category identifies the generic error category (C++11) (function) system_category identifies the operating system error category (C++11) (function) iostream_category identifies the iostream error category (C++11) (function) future_category identifies the future error category (C++11) (function) http://cppreference.com 2022.07.31 std::error_category(3)
NAME | Synopsis | Member functions | See also
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