errno.h File Reference

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Macros
#define	errno   _errno
	Macro to access _errno. More...
#define	EDOM   1
	Domain error. More...
#define	ERANGE   2
	Range error. More...
#define	EILSEQ   3
	Illegal sequence. More...

Typedefs
typedef int	errno_t
	Type or error. More...

Variables
errno_t	_errno
	Last error number. More...

Macro Definition Documentation

EDOM

#define EDOM   1

Domain error.

Set when function is called with parameters that are outside of its domain.

EILSEQ

#define EILSEQ   3

Illegal sequence.

Set when illegal byte sequence appears.

ERANGE

#define ERANGE   2

Range error.

Set when value is too large to be stored in variable like pole error, overflow, underflow.

errno

#define errno   _errno

Macro to access _errno.

Provides access to _errno.

Typedef Documentation

errno_t

typedef int errno_t

Type or error.

Variable Documentation

_errno

errno_t _errno

Last error number.

Value that inform about last error number occured during math operations.