<system_error>

The latest version of this topic can be found at <system_error>.

Include the header <system_error> to define the exception class system_error and related templates for processing low-level system errors.

Syntax

#include <system_error>

generic_category	Represents the category for generic errors.
system_category	Represents the category for errors caused by low-level system overflows.

generic_errno A type that represents the enumeration that provides the symbolic names for all the error-code macros defined by Posix in <errno.h>.

make_error_code	Creates an `error_code` object.
make_error_condition	Creates an `error_condition` object.

operator==	Tests if the object on the left side of the operator is equal to the object on the right side.
operator!=	Tests if the object on the left side of the operator is not equal to the object on the right side.
operator<	Tests if an object is less than the object passed in for comparison.

errc	Provides symbolic names for all the error-code macros defined by Posix in `<errno.h>`.

error_category	Represents the abstract, common base for objects that describes a category of error codes.
error_code	Represents low-level system errors that are implementation-specific.
error_condition	Represents user-defined error codes.
is_error_code_enum	Represents a type predicate that tests for the error_code Class enumeration.
is_error_condition_enum	Represents a type predicate that tests for the error_condition Class enumeration.
system_error	Represents the base class for all exceptions thrown to report a low-level system overflow.

Header: <system_error>

Namespace: std