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 Free Software Foundation, Inc.
4 NOTE: The canonical source of this file is maintained with the GNU C Library.
5 Bugs can be reported to bug-glibc@prep.ai.mit.edu.
7 This program is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 2, or (at your option) any
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
30 /* Comment out all this code if we are using the GNU C Library, and are not
31 actually compiling the library itself. This code is part of the GNU C
32 Library, but also included in many other GNU distributions. Compiling
33 and linking in this code is a waste when using the GNU C library
34 (especially if it is a shared library). Rather than having every GNU
35 program understand `configure --with-gnu-libc' and omit the object files,
36 it is simpler to just do this in the source for each such file. */
38 #define GETOPT_INTERFACE_VERSION 2
39 #if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
40 #include <gnu-versions.h>
41 #if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
49 /* This needs to come after some library #include
50 to get __GNU_LIBRARY__ defined. */
51 #ifdef __GNU_LIBRARY__
60 getopt_long (int argc, char *const *argv, const char *options,
61 const struct option *long_options, int *opt_index)
63 return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
66 /* Like getopt_long, but '-' as well as '--' can indicate a long option.
67 If an option that starts with '-' (not '--') doesn't match a long option,
68 but does match a short option, it is parsed as a short option
72 getopt_long_only (int argc, char *const *argv, const char *options,
73 const struct option *long_options, int *opt_index)
75 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
79 #endif /* Not ELIDE_CODE. */
86 main (int argc, char **argv)
93 int this_option_optind = optind ? optind : 1;
95 static struct option long_options[] =
100 {"verbose", 0, 0, 0},
106 c = getopt_long (argc, argv, "abc:d:0123456789",
107 long_options, &option_index);
114 printf ("option %s", long_options[option_index].name);
116 printf (" with arg %s", optarg);
130 if (digit_optind != 0 && digit_optind != this_option_optind)
131 printf ("digits occur in two different argv-elements.\n");
132 digit_optind = this_option_optind;
133 printf ("option %c\n", c);
137 printf ("option a\n");
141 printf ("option b\n");
145 printf ("option c with value `%s'\n", optarg);
149 printf ("option d with value `%s'\n", optarg);
156 printf ("?? getopt returned character code 0%o ??\n", c);
162 printf ("non-option ARGV-elements: ");
163 while (optind < argc)
164 printf ("%s ", argv[optind++]);