1  #include <stdio.h>
       2  #include <wchar.h>
       3  
       4  
       5  static int fd;
       6  
       7  static void prepare (void);
       8  #define PREPARE(argc, argv) prepare ()
       9  
      10  
      11  #define TEST_FUNCTION do_test ()
      12  static int do_test (void);
      13  #include "../test-skeleton.c"
      14  
      15  
      16  static void
      17  prepare (void)
      18  {
      19    fd = create_temp_file ("wrewind2.", NULL);
      20    if (fd == -1)
      21      exit (3);
      22  }
      23  
      24  
      25  static int
      26  do_test (void)
      27  {
      28    wchar_t dummy[10];
      29    int ret = 0;
      30    FILE *fp;
      31    int result = 0;
      32  
      33    fp = fdopen (fd, "w+");
      34    if (fp == NULL)
      35      {
      36        puts ("fopen(""testfile"", ""w+"") returned NULL.");
      37        return 1;
      38      }
      39    else
      40      {
      41        fwprintf (fp, L"abcd");
      42        printf ("current pos = %ld\n", ftell (fp));
      43        if (ftell (fp) != 4)
      44  	result = 1;
      45  
      46        rewind (fp);
      47        ret = fwscanf (fp, L"%c", dummy);
      48        if (ret != 1)
      49  	{
      50  	  printf ("fwscanf returned %d, expected 1\n", ret);
      51  	  result = 1;
      52  	}
      53  
      54        printf ("current pos = %ld\n", ftell (fp));
      55        if (ftell (fp) != 1)
      56  	result = 1;
      57  
      58        rewind (fp);
      59        printf ("current pos = %ld\n", ftell (fp));
      60        if (ftell (fp) != 0)
      61  	result = 1;
      62  
      63        fclose (fp);
      64      }
      65  
      66    return result;
      67  }