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. */
23 /* This is a separate conditional since some stdc systems
24 reject `defined (const)'. */
32 /* Comment out all this code if we are using the GNU C Library, and are not
33 actually compiling the library itself. This code is part of the GNU C
34 Library, but also included in many other GNU distributions. Compiling
35 and linking in this code is a waste when using the GNU C library
36 (especially if it is a shared library). Rather than having every GNU
37 program understand `configure --with-gnu-libc' and omit the object files,
38 it is simpler to just do this in the source for each such file. */
40 #if defined (_LIBC) || !defined (__GNU_LIBRARY__)
43 /* This needs to come after some library #include
44 to get __GNU_LIBRARY__ defined. */
45 #ifdef __GNU_LIBRARY__
56 getopt_long (argc, argv, options, long_options, opt_index)
60 const struct option *long_options;
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 (argc, argv, options, long_options, opt_index)
76 const struct option *long_options;
79 return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
83 #endif /* _LIBC or not __GNU_LIBRARY__. */
99 int this_option_optind = optind ? optind : 1;
100 int option_index = 0;
101 static struct option long_options[] =
106 {"verbose", 0, 0, 0},
112 c = getopt_long (argc, argv, "abc:d:0123456789",
113 long_options, &option_index);
120 printf ("option %s", long_options[option_index].name);
122 printf (" with arg %s", optarg);
136 if (digit_optind != 0 && digit_optind != this_option_optind)
137 printf ("digits occur in two different argv-elements.\n");
138 digit_optind = this_option_optind;
139 printf ("option %c\n", c);
143 printf ("option a\n");
147 printf ("option b\n");
151 printf ("option c with value `%s'\n", optarg);
155 printf ("option d with value `%s'\n", optarg);
162 printf ("?? getopt returned character code 0%o ??\n", c);
168 printf ("non-option ARGV-elements: ");
169 while (optind < argc)
170 printf ("%s ", argv[optind++]);