1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2005
3 Free Software Foundation, Inc.
5 NOTE: This source is derived from an old version taken from the GNU C
8 This program is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
27 #if !defined __STDC__ || !__STDC__
28 /* This is a separate conditional since some stdc systems
29 reject `defined (const)'. */
39 /* Comment out all this code if we are using the GNU C Library, and are not
40 actually compiling the library itself. This code is part of the GNU C
41 Library, but also included in many other GNU distributions. Compiling
42 and linking in this code is a waste when using the GNU C library
43 (especially if it is a shared library). Rather than having every GNU
44 program understand `configure --with-gnu-libc' and omit the object files,
45 it is simpler to just do this in the source for each such file. */
47 #define GETOPT_INTERFACE_VERSION 2
48 #if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2
49 #include <gnu-versions.h>
50 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
58 /* This needs to come after some library #include
59 to get __GNU_LIBRARY__ defined. */
60 #ifdef __GNU_LIBRARY__
69 getopt_long (int argc, char *const *argv, const char *options,
70 const struct option *long_options, int *opt_index)
72 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
75 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
76 If an option that starts with '-' (not '--') doesn't match a long option,
77 but does match a short option, it is parsed as a short option
81 getopt_long_only (int argc, char *const *argv, const char *options,
82 const struct option *long_options, int *opt_index)
84 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
88 #endif /* Not ELIDE_CODE. */
95 main (int argc, char **argv)
102 int this_option_optind = optind ? optind : 1;
103 int option_index = 0;
104 static struct option long_options[] =
109 {"verbose", 0, 0, 0},
115 c = getopt_long (argc, argv, "abc:d:0123456789",
116 long_options, &option_index);
123 printf ("option %s", long_options[option_index].name);
125 printf (" with arg %s", optarg);
139 if (digit_optind != 0 && digit_optind != this_option_optind)
140 printf ("digits occur in two different argv-elements.\n");
141 digit_optind = this_option_optind;
142 printf ("option %c\n", c);
146 printf ("option a\n");
150 printf ("option b\n");
154 printf ("option c with value `%s'\n", optarg);
158 printf ("option d with value `%s'\n", optarg);
165 printf ("?? getopt returned character code 0%o ??\n", c);
171 printf ("non-option ARGV-elements: ");
172 while (optind < argc)
173 printf ("%s ", argv[optind++]);