1 /* getopt_long and getopt_long_only entry points for GNU getopt.
2 Copyright (C) 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1996, 1997,
3 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
6 NOTE: The canonical source of this file is maintained with the GNU C Library.
7 Bugs can be reported to bug-glibc@gnu.org.
9 This program is free software; you can redistribute it and/or modify it
10 under the terms of the GNU General Public License as published by the
11 Free Software Foundation; either version 2, or (at your option) any
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License along with
20 this program; see the file COPYING. If not, write to the Free Software
21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. */
29 #if !defined __STDC__ || !__STDC__
30 /* This is a separate conditional since some stdc systems
31 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
++]);