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/* Test program for fsetpos on a wide character stream. */
#include <assert.h>
#include <stdio.h>
#include <wchar.h>
#include <support/xunistd.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 const char pattern[] = "12345";
static char *temp_file;
static void
do_prepare (void)
{
int fd = create_temp_file ("bug-wsetpos.", &temp_file);
if (fd == -1)
{
printf ("cannot create temporary file: %m\n");
exit (1);
}
xwrite (fd, pattern, sizeof (pattern));
close (fd);
}
static int
do_test (void)
{
FILE *fp = fopen (temp_file, "r");
fpos_t pos;
wchar_t c;
if (fp == NULL)
{
printf ("fdopen: %m\n");
return 1;
}
c = fgetwc (fp); assert (c == L'1');
c = fgetwc (fp); assert (c == L'2');
if (fgetpos (fp, &pos) == EOF)
{
printf ("fgetpos: %m\n");
return 1;
}
rewind (fp);
if (ferror (fp))
{
printf ("rewind: %m\n");
return 1;
}
c = fgetwc (fp); assert (c == L'1');
if (fsetpos (fp, &pos) == EOF)
{
printf ("fsetpos: %m\n");
return 1;
}
c = fgetwc (fp);
if (c != L'3')
{
puts ("fsetpos failed");
return 1;
}
puts ("Test succeeded.");
return 0;
}
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