1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987, 88, 89, 90, 91, 92, 1993
3 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of the GNU General Public License as published by the
7 Free Software Foundation; either version 2, or (at your option) any
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
25 #if !__STDC__ && !defined(const) && IN_GCC
31 /* Comment out all this code if we are using the GNU C Library, and are not
32 actually compiling the library itself. This code is part of the GNU C
33 Library, but also included in many other GNU distributions. Compiling
34 and linking in this code is a waste when using the GNU C library
35 (especially if it is a shared library). Rather than having every GNU
36 program understand `configure --with-gnu-libc' and omit the object files,
37 it is simpler to just do this in the source for each such file. */
39 #if defined (_LIBC) || !defined (__GNU_LIBRARY__)
42 /* This needs to come after some library #include
43 to get __GNU_LIBRARY__ defined. */
44 #ifdef __GNU_LIBRARY__
55 getopt_long (argc, argv, options, long_options, opt_index)
59 const struct option *long_options;
62 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
65 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
66 If an option that starts with '-' (not '--') doesn't match a long option,
67 but does match a short option, it is parsed as a short option
71 getopt_long_only (argc, argv, options, long_options, opt_index)
75 const struct option *long_options;
78 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
82 #endif /* _LIBC or not __GNU_LIBRARY__. */
98 int this_option_optind = optind ? optind : 1;
100 static struct option long_options[] =
105 {"verbose", 0, 0, 0},
111 c = getopt_long (argc, argv, "abc:d:0123456789",
112 long_options, &option_index);
119 printf ("option %s", long_options[option_index].name);
121 printf (" with arg %s", optarg);
135 if (digit_optind != 0 && digit_optind != this_option_optind)
136 printf ("digits occur in two different argv-elements.\n");
137 digit_optind = this_option_optind;
138 printf ("option %c\n", c);
142 printf ("option a\n");
146 printf ("option b\n");
150 printf ("option c with value `%s'\n", optarg);
154 printf ("option d with value `%s'\n", optarg);
161 printf ("?? getopt returned character code 0%o ??\n", c);
167 printf ("non-option ARGV-elements: ");
168 while (optind < argc)
169 printf ("%s ", argv[optind++]);