| 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 (public member function) | |
| (destructor)
[virtual] | destructs an error_category (virtual public member function) |
| operator= [deleted] | not copy assignable (public member function) |
| [virtual] | obtains the name of the category (virtual public member function) |
| [virtual] | maps error_code to error_condition (virtual public member function) |
| [virtual] | compares error_code and error_condition for equivalence (virtual public member function) |
| [virtual] | obtains the explanatory string (virtual public member function) |
| compares two error categories (function) |
Specific error categories
| (C++11) | identifies the generic error category (function) |
| (C++11) | identifies the operating system error category (function) |
| (C++11) | identifies the iostream error category (function) |
| (C++11) | identifies the future error category (function) |
See also
| (C++11) | holds a portable error code (class) |
| (C++11) | holds a platform-dependent error code (class) |
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