1  main()
       2  {
       3    static char static_char_array[1];
       4    static char *static_char_pointer;
       5    static char static_char;
       6    char  char_array[1];
       7    char *char_pointer;
       8    char  character;
       9  
      10    char *cp, c;
      11  
      12    c = cp - static_char_array;   /* error */
      13    c = cp - static_char_pointer;
      14    c = cp - &static_char;        /* error */
      15    c = cp - char_array;
      16    c = cp - char_pointer;
      17    c = cp - &character;
      18  }