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comparison liboctave/getopt.h @ 4288:3788d56fea50

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[project @ 2003-01-04 21:40:52 by jwe]
author jwe
date Sat, 04 Jan 2003 21:40:52 +0000
parents 5a82e874999b
children 9f5e54070c86
comparison
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4287:48d5b36ba35a 4288:3788d56fea50
1 /* Declarations for getopt. 1 /* Declarations for getopt.
2 Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc. 2 Copyright (C) 1989,90,91,92,93,94,96,97 Free Software Foundation, Inc.
3 3
4 This program is free software; you can redistribute it and/or modify it 4 This file is part of the GNU C Library. Its master source is NOT part of
5 under the terms of the GNU General Public License as published by the 5 the C library, however. The master source lives in /gd/gnu/lib.
6 Free Software Foundation; either version 2, or (at your option) any
7 later version.
8 6
9 This program is distributed in the hope that it will be useful, 7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public License as
9 published by the Free Software Foundation; either version 2 of the
10 License, or (at your option) any later version.
11
12 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 GNU General Public License for more details. 15 Library General Public License for more details.
13 16
14 You should have received a copy of the GNU General Public License 17 You should have received a copy of the GNU Library General Public
15 along with this program; if not, write to the Free Software 18 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 19 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
17 21
18 #ifndef _GETOPT_H 22 #ifndef _GETOPT_H
19 #define _GETOPT_H 1 23 #define _GETOPT_H 1
24
25 #if !defined(WIN32) || (defined(_DLL) && !defined(_IMPORT)) || !defined(_DLL)
26 #define DllImport
27 #else
28 #define DllImport __declspec(dllimport)
29 #endif
20 30
21 #ifdef __cplusplus 31 #ifdef __cplusplus
22 extern "C" { 32 extern "C" {
23 #endif 33 #endif
24 34
26 When `getopt' finds an option that takes an argument, 36 When `getopt' finds an option that takes an argument,
27 the argument value is returned here. 37 the argument value is returned here.
28 Also, when `ordering' is RETURN_IN_ORDER, 38 Also, when `ordering' is RETURN_IN_ORDER,
29 each non-option ARGV-element is returned here. */ 39 each non-option ARGV-element is returned here. */
30 40
31 extern char *optarg; 41 extern DllImport char *optarg;
32 42
33 /* Index in ARGV of the next element to be scanned. 43 /* Index in ARGV of the next element to be scanned.
34 This is used for communication to and from the caller 44 This is used for communication to and from the caller
35 and for communication between successive calls to `getopt'. 45 and for communication between successive calls to `getopt'.
36 46
37 On entry to `getopt', zero means this is the first call; initialize. 47 On entry to `getopt', zero means this is the first call; initialize.
38 48
39 When `getopt' returns EOF, this is the index of the first of the 49 When `getopt' returns -1, this is the index of the first of the
40 non-option elements that the caller should itself scan. 50 non-option elements that the caller should itself scan.
41 51
42 Otherwise, `optind' communicates from one call to the next 52 Otherwise, `optind' communicates from one call to the next
43 how much of ARGV has been scanned so far. */ 53 how much of ARGV has been scanned so far. */
44 54
45 extern int optind; 55 extern DllImport int optind;
46 56
47 /* Callers store zero here to inhibit the error message `getopt' prints 57 /* Callers store zero here to inhibit the error message `getopt' prints
48 for unrecognized options. */ 58 for unrecognized options. */
49 59
50 extern int opterr; 60 extern DllImport int opterr;
51 61
52 /* Set to an option character which was unrecognized. */ 62 /* Set to an option character which was unrecognized. */
53 63
54 extern int optopt; 64 extern DllImport int optopt;
55 65
56 /* Describe the long-named options requested by the application. 66 /* Describe the long-named options requested by the application.
57 The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector 67 The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
58 of `struct option' terminated by an element containing a name which is 68 of `struct option' terminated by an element containing a name which is
59 zero. 69 zero.
74 one). For long options that have a zero `flag' field, `getopt' 84 one). For long options that have a zero `flag' field, `getopt'
75 returns the contents of the `val' field. */ 85 returns the contents of the `val' field. */
76 86
77 struct option 87 struct option
78 { 88 {
79 #if __STDC__ 89 #if defined (__STDC__) && __STDC__
80 const char *name; 90 const char *name;
81 #else 91 #else
82 char *name; 92 char *name;
83 #endif 93 #endif
84 /* has_arg can't be an enum because some compilers complain about 94 /* has_arg can't be an enum because some compilers complain about
92 102
93 #define no_argument 0 103 #define no_argument 0
94 #define required_argument 1 104 #define required_argument 1
95 #define optional_argument 2 105 #define optional_argument 2
96 106
97 #if __STDC__ 107 #if defined (__STDC__) && __STDC__
108 #ifdef __GNU_LIBRARY__
109 /* Many other libraries have conflicting prototypes for getopt, with
110 differences in the consts, in stdlib.h. To avoid compilation
111 errors, only prototype getopt for the GNU C library. */
98 extern int getopt (int argc, char *const *argv, const char *shortopts); 112 extern int getopt (int argc, char *const *argv, const char *shortopts);
113 #else /* not __GNU_LIBRARY__ */
114 extern int getopt ();
115 #endif /* __GNU_LIBRARY__ */
99 extern int getopt_long (int argc, char *const *argv, const char *shortopts, 116 extern int getopt_long (int argc, char *const *argv, const char *shortopts,
100 const struct option *longopts, int *longind); 117 const struct option *longopts, int *longind);
101 extern int getopt_long_only (int argc, char *const *argv, 118 extern int getopt_long_only (int argc, char *const *argv,
102 const char *shortopts, 119 const char *shortopts,
103 const struct option *longopts, int *longind); 120 const struct option *longopts, int *longind);
111 extern int getopt (); 128 extern int getopt ();
112 extern int getopt_long (); 129 extern int getopt_long ();
113 extern int getopt_long_only (); 130 extern int getopt_long_only ();
114 131
115 extern int _getopt_internal (); 132 extern int _getopt_internal ();
116 #endif /* not __STDC__ */ 133 #endif /* __STDC__ */
117 134
118 #ifdef __cplusplus 135 #ifdef __cplusplus
119 } 136 }
120 #endif 137 #endif
121 138