glibc/libio/bug-rewind.c
Ulrich Drepper 706d1dee46 Update.
2002-07-15  Ulrich Drepper  <drepper@redhat.com>

	* libio/wfileops.c (_IO_wfile_seekoff): Reposition wide pointers
	and adjust state for seek position.  [PR libc/4070]
	* libio/Makefile (tests): Add bug-rewind.
	* libio/bug-rewind.c: New file.
2002-07-15 23:37:22 +00:00

53 lines
833 B
C

#include <stdio.h>
#include <wchar.h>
#define PASSED 0
#define FAILED 3
int
main (void)
{
FILE *fptr;
char arg1;
char arg2;
int ret, ret1, ret2, result, num;
ret1 = 0;
ret2 = 0;
if ((fptr = fopen ("./wrewind.dat", "w+")) == NULL)
{
printf ("Unable to open file.\n");
return 1;
}
if ((ret = fwprintf (fptr, L"cderf")) <= 0)
{
printf ("Unable to write to file with fwprintf().\n");
fclose (fptr);
return 2;
}
rewind (fptr);
ret1 = fwscanf (fptr, L"%c%c", &arg1, &arg2);
rewind (fptr);
ret2 = fwscanf (fptr, L"%c%n%c", &arg1, &num, &arg2);
if (arg2 != 'd')
{
result = FAILED;
printf ("rewind after first fwscanf failed\n");
}
else
{
printf ("Passed\n");
result = PASSED;
}
fclose (fptr);
return result;
}