/* Test program for fsetpos on a wide character stream.  */

#include <assert.h>

#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 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);

    }

  write (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;

}