1  #include <stdio.h>
       2  #include <stdio_ext.h>
       3  
       4  
       5  static char *fname;
       6  
       7  #define PREPARE(argc, argv) \
       8    do {									\
       9      int fd = create_temp_file ("tst-ext2", &fname);			\
      10      if (fd == -1)							\
      11        {									\
      12  	puts ("cannot create temporary file");				\
      13  	exit (1);							\
      14        }									\
      15      close (fd);								\
      16    } while (0)
      17  
      18  
      19  static int
      20  do_test (void)
      21  {
      22    int res = 0;
      23  
      24    FILE *fp;
      25  
      26    fp = fopen (fname, "w");
      27    printf ("Initial state for write-only stream: %d %d\n",
      28            __freading (fp) != 0, __fwriting (fp) != 0);
      29    res |= ((__freading (fp) != 0) != 0
      30  	  || (__fwriting (fp) != 0) != 1);
      31    fclose (fp);
      32  
      33    fp = fopen (fname, "r");
      34    printf ("Initial state for read-only stream:  %d %d\n",
      35            __freading (fp) != 0, __fwriting (fp) != 0);
      36    res |= ((__freading (fp) != 0) != 1
      37  	  || (__fwriting (fp) != 0) != 0);
      38    fclose (fp);
      39  
      40    fp = fopen (fname, "r+");
      41    printf ("Initial state for read-write stream: %d %d\n",
      42            __freading (fp) != 0, __fwriting (fp) != 0);
      43    res |= ((__freading (fp) != 0) != 0
      44  	  || (__fwriting (fp) != 0) != 0);
      45    fclose (fp);
      46  
      47    fp = fopen (fname, "w+");
      48    printf ("Initial state for read-write stream: %d %d\n",
      49            __freading (fp) != 0, __fwriting (fp) != 0);
      50    res |= ((__freading (fp) != 0) != 0
      51  	  || (__fwriting (fp) != 0) != 0);
      52    fclose (fp);
      53  
      54    return res;
      55  }
      56  
      57  #define TEST_FUNCTION do_test ()
      58  #include "../test-skeleton.c"