std::error_category - cppreference.com
From cppreference.com
std::error_category serves as the base class for specific error category types, such as std::system_category, std::iostream_category, etc. Each specific category class defines the error_code - error_condition mapping and holds the explanatory strings for all error_conditions. The objects of error category classes are treated as singletons, passed by reference.
Member functions
constructs an error_category (public member function) [edit] | |
[virtual] |
destructs an error_category (virtual public member function) [edit] |
operator= [deleted] |
not copy assignable (public member function) [edit] |
[virtual] |
obtains the name of the category (virtual public member function) [edit] |
[virtual] |
maps error_code to error_condition (virtual public member function) [edit] |
[virtual] |
compares error_code and error_condition for equivalence (virtual public member function) [edit] |
[virtual] |
obtains the explanatory string (virtual public member function) [edit] |
(removed in C++20)(removed in C++20)(C++20) |
compares two error categories (function) [edit] |