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#include <stdio.h>
#include <wchar.h>
#define PASSED 0
#define FAILED 3
static int fd;
static void prepare (void);
#define PREPARE(argc, argv) prepare ()
#define TEST_FUNCTION do_test ()
static int do_test (void);
#include "../test-skeleton.c"
static void
prepare (void)
{
fd = create_temp_file ("wrewind.", NULL);
if (fd == -1)
exit (3);
}
static int
do_test (void)
{
FILE *fptr;
char arg1;
char arg2;
int ret1, ret2, result, num;
ret1 = 0;
ret2 = 0;
fptr = fdopen (fd, "w+");
if (fptr == NULL)
{
printf ("Unable to open file.\n");
return 1;
}
if (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);
if (ret1 != 2)
{
printf ("first fwscanf returned %d, expected 2\n", ret1);
return 3;
}
rewind (fptr);
ret2 = fwscanf (fptr, L"%c%n%c", &arg1, &num, &arg2);
if (ret2 != 2)
{
printf ("second fwscanf returned %d, expected 2\n", ret2);
return 4;
}
if (arg2 != 'd')
{
result = FAILED;
printf ("rewind after first fwscanf failed\n");
}
else
{
printf ("Passed\n");
result = PASSED;
}
fclose (fptr);
return result;
}
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