std::error_category (3) - Linux Man Pages

std::error_category: std::error_category

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 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
constructor (public member function)


destructor destructs an error_category
                        (virtual public member function)
[virtual]


operator= not copy assignable
                        (public member function)
[deleted]


name obtains the name of the category
                        (virtual public member function)
[virtual]


default_error_condition maps error_code to error_condition
                        (virtual public member function)
[virtual]


equivalent compares error_code and error_condition for equivalence
                        (virtual public member function)
[virtual]


message obtains the explanatory string
                        (virtual public member function)
[virtual]


operator== compares two error categories
operator!= (function)
operator<


Specific error categories


generic_category identifies the generic error category
                  (function)
(C++11)


system_category identifies the operating system error category
                  (function)
(C++11)


iostream_category identifies the iostream error category
                  (function)
(C++11)


future_category identifies the future error category
                  (function)
(C++11)


error_condition holds a portable error code
                  (class)
(C++11)


error_code holds a platform-dependent error code
                  (class)
(C++11)