1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987-2018 Free Software Foundation, Inc.
3 This file is part of the GNU C Library and is also part of gnulib.
4 Patches to this file should be submitted to both projects.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public
8 License as published by the Free Software Foundation; either
9 version 3 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
25 #include "getopt_int.h"
28 getopt_long (int argc, char *__getopt_argv_const *argv, const char *options,
29 const struct option *long_options, int *opt_index)
31 return _getopt_internal (argc, (char **) argv, options, long_options,
36 _getopt_long_r (int argc, char **argv, const char *options,
37 const struct option *long_options, int *opt_index,
38 struct _getopt_data *d)
40 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
44 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
45 If an option that starts with '-' (not '--') doesn't match a long option,
46 but does match a short option, it is parsed as a short option
50 getopt_long_only (int argc, char *__getopt_argv_const *argv,
52 const struct option *long_options, int *opt_index)
54 return _getopt_internal (argc, (char **) argv, options, long_options,
59 _getopt_long_only_r (int argc, char **argv, const char *options,
60 const struct option *long_options, int *opt_index,
61 struct _getopt_data *d)
63 return _getopt_internal_r (argc, argv, options, long_options, opt_index,
74 main (int argc, char **argv)
81 int this_option_optind = optind ? optind : 1;
83 static const struct option long_options[] =
94 c = getopt_long (argc, argv, "abc:d:0123456789",
95 long_options, &option_index);
102 printf ("option %s", long_options[option_index].name);
104 printf (" with arg %s", optarg);
118 if (digit_optind != 0 && digit_optind != this_option_optind)
119 printf ("digits occur in two different argv-elements.\n");
120 digit_optind = this_option_optind;
121 printf ("option %c\n", c);
125 printf ("option a\n");
129 printf ("option b\n");
133 printf ("option c with value '%s'\n", optarg);
137 printf ("option d with value '%s'\n", optarg);
144 printf ("?? getopt returned character code 0%o ??\n", c);
150 printf ("non-option ARGV-elements: ");
151 while (optind < argc)
152 printf ("%s ", argv[optind++]);