Function main

resources/fegetopt.c:689–749

   the above definition of `getopt'.  */

int main (int argc, char **argv)
{
  int c;
  int digit_optind = 0;

  while (1)
    {
      int this_option_optind = optind ? optind : 1;

      c = fe_getopt (argc, argv, "abc:d:0123456789");
      if (c == EOF)
        break;

      switch (c)
        {
        case '0':
        case '1':
        case '2':
        case '3':
        case '4':
        case '5':
        case '6':
        case '7':
        case '8':
        case '9':
          if (digit_optind != 0 && digit_optind != this_option_optind)
            printf ("digits occur in two different argv-elements.\n");
          digit_optind = this_option_optind;
          printf ("option %c\n", c);
          break;

        case 'a':
          printf ("option a\n");
          break;

        case 'b':
          printf ("option b\n");
          break;

        case 'c':
          printf ("option c with value `%s'\n", fe_optarg);
          break;

        case BAD_OPTION:
          break;

        default:
          printf ("?? fe_getopt returned character code 0%o ??\n", c);
        }
    }

  if (fe_optind < argc)
    {
      printf ("non-option ARGV-elements: ");
      while (fe_optind < argc)
        printf ("%s ", argv[fe_optind++]);
      printf ("\n");
    }