error_category Class

Represents the abstract, common base for objects that describes a category of error codes.

class error_category;

Remarks

Two predefined objects implement error_category: generic_category and system_category.

A type that represents the stored error code value.

default_error_condition	Stores the error code value for an error condition object.
equivalent	Returns a value that specifies whether error objects are equivalent.
message	Returns the name of the specified error code.
name	Returns the name of the category.

operator==	Tests for equality between error_category objects.
operator!=	Tests for inequality between error_category objects.
operator<	Tests if the error_category object is less than the error_category object passed in for comparison.

Header: <system_error>

Namespace: std