_doserrno

Syntax

#include <errno.h>
 
extern int _doserrno;

Description

Whenever a DOS call returns a failure indication, this variable is assigned the value of the error code returned by the failed DOS call.

For a list of the error codes and their short descriptions, see dosexterr.

Portability

ANSI/ISO C	No
POSIX	No

Example

_doserrno = 0; fprintf (stdprn, "Hello, world!\r\n\f"); if (_doserrno == 0x1c) fprintf (stderr, "The printer is out of paper!\n");