_set_errno

Set the value of the errno global variable.

Syntax

errno_t _set_errno( int error_value );

Parameters

error_value
The new value of errno.

Return Value

Returns zero if successful.

Remarks

Possible values are defined in Errno.h. Also, see errno Constants.

Example

// crt_set_errno.c
#include <stdio.h>
#include <errno.h>

int main()
{
   _set_errno( EILSEQ );
   perror( "Oops" );
}
Oops: Illegal byte sequence

Requirements

Routine Required header Optional header
_set_errno <stdlib.h> <errno.h>

For more compatibility information, see Compatibility.

See also

_get_errno
errno, _doserrno, _sys_errlist, and _sys_nerr