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- /*@group*/
- #include <unistd.h>
- #include <stdio.h>
-
- int
- main (int argc, char **argv)
- {
- int aflag = 0;
- int bflag = 0;
- char *cvalue = NULL;
- int index;
- int c;
-
- opterr = 0;
- /*@end group*/
-
- /*@group*/
- while ((c = getopt (argc, argv, "abc:")) != -1)
- switch (c)
- {
- case 'a':
- aflag = 1;
- break;
- case 'b':
- bflag = 1;
- break;
- case 'c':
- cvalue = optarg;
- break;
- case '?':
- if (isprint (optopt))
- fprintf (stderr, "Unknown option `-%c'.\n", optopt);
- else
- fprintf (stderr,
- "Unknown option character `\\x%x'.\n",
- optopt);
- return 1;
- default:
- abort ();
- }
- /*@end group*/
-
- /*@group*/
- printf ("aflag = %d, bflag = %d, cvalue = %s\n", aflag, bflag, cvalue);
-
- for (index = optind; index < argc; index++)
- printf ("Non-option argument %s\n", argv[index]);
- return 0;
- }
- /*@end group*/
-