| 715 | the above definition of `getopt'. */ |
| 716 | |
| 717 | int |
| 718 | main(argc, argv) |
| 719 | int argc; |
| 720 | char **argv; |
| 721 | { |
| 722 | while (1) |
| 723 | { |
| 724 | int c; |
| 725 | int digit_optind = 0; |
| 726 | |
| 727 | int this_option_optind = optind ? optind : 1; |
| 728 | |
| 729 | c = getopt(argc, argv, "abc:d:0123456789"); |
| 730 | |
| 731 | if (c == EOF) |
| 732 | { |
| 733 | break; |
| 734 | } |
| 735 | |
| 736 | switch (c) |
| 737 | { |
| 738 | case '0': |
| 739 | case '1': |
| 740 | case '2': |
| 741 | case '3': |
| 742 | case '4': |
| 743 | case '5': |
| 744 | case '6': |
| 745 | case '7': |
| 746 | case '8': |
| 747 | case '9': |
| 748 | if (digit_optind != 0 && digit_optind != this_option_optind) |
| 749 | { |
| 750 | printf("digits occur in two different argv-elements.\n"); |
| 751 | } |
| 752 | |
| 753 | digit_optind = this_option_optind; |
| 754 | printf("option %c\n", c); |
| 755 | break; |
| 756 | |
| 757 | case 'a': |
| 758 | printf("option a\n"); |
| 759 | break; |
| 760 | |
| 761 | case 'b': |
| 762 | printf("option b\n"); |
| 763 | break; |
| 764 | |
| 765 | case 'c': |
| 766 | printf("option c with value `%s'\n", optarg); |
| 767 | break; |
| 768 | |
| 769 | case '?': |
| 770 | break; |
| 771 | |
| 772 | default: |
| 773 | printf("?? getopt returned character code 0%o ??\n", c); |
| 774 | } |