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/* Test program for bug in wide streams. */
#include <stdio.h>
#include <wchar.h>
static void do_prepare (void);
#define PREPARE(argc, argv) do_prepare ()
static int do_test (void);
#define TEST_FUNCTION do_test ()
#include <test-skeleton.c>
static char *temp_file;
static void
do_prepare (void)
{
int fd = create_temp_file ("bug-ungetc.", &temp_file);
if (fd == -1)
{
printf ("cannot create temporary file: %m\n");
exit (1);
}
write (fd, "1!", 2);
close (fd);
}
static int
do_test (void)
{
FILE *f = fopen (temp_file, "r+");
if (f == NULL)
{
printf ("fopen: %m\n");
return 1;
}
fpos_t pos;
if (fgetpos (f, &pos) != 0)
{
printf ("fgetpos: %m\n");
return 1;
}
#define L_(s) L##s
//#define fwscanf fscanf
//#define fwprintf fprintf
int i;
if (fwscanf (f, L_("%d!"), &i) != 1)
{
printf ("fwscanf failed\n");
return 1;
}
if (fsetpos (f, &pos) != 0)
{
printf ("fsetpos: %m\n");
return 1;
}
if (fwprintf (f, L_("1!")) < 2)
{
printf ("fwprintf: %m\n");
return 1;
}
if (fflush (f) != 0)
{
printf ("fflush: %m\n");
return 1;
}
if (fclose (f) != 0)
{
printf ("fclose: %m\n");
return 1;
}
puts ("Test succeeded.");
return 0;
}
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