OOPSE-1.0/third-party/gnugetopt.h

/* Declarations for getopt.
   Copyright (C) 1989-1994, 1996-1999,2001,2003 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#ifndef _GETOPT_H

#ifndef __need_getopt
# define _GETOPT_H 1
#endif

/* If __GNU_LIBRARY__ is not already defined, either we are being used
   standalone, or this is the first header included in the source file.
   If we are being used with glibc, we need to include <features.h>, but
   that does not exist if we are standalone.  So: if __GNU_LIBRARY__ is
   not defined, include <ctype.h>, which will pull in <features.h> for us
   if it's from glibc.  (Why ctype.h?  It's guaranteed to exist and it
   doesn't flood the namespace with stuff the way some other headers do.)  */
#if !defined __GNU_LIBRARY__
# include <ctype.h>
#endif

#ifndef __THROW
# if defined __cplusplus && __GNUC_PREREQ (2,8)
#  define __THROW       throw ()
# else
#  define __THROW
# endif
#endif

#ifdef  __cplusplus
extern "C" {
#endif

/* For communication from `getopt' to the caller.
   When `getopt' finds an option that takes an argument,
   the argument value is returned here.
   Also, when `ordering' is RETURN_IN_ORDER,
   each non-option ARGV-element is returned here.  */

extern char *optarg;

/* Index in ARGV of the next element to be scanned.
   This is used for communication to and from the caller
   and for communication between successive calls to `getopt'.

   On entry to `getopt', zero means this is the first call; initialize.

   When `getopt' returns -1, this is the index of the first of the
   non-option elements that the caller should itself scan.

   Otherwise, `optind' communicates from one call to the next
   how much of ARGV has been scanned so far.  */

extern int optind;

/* Callers store zero here to inhibit the error message `getopt' prints
   for unrecognized options.  */

extern int opterr;

/* Set to an option character which was unrecognized.  */

extern int optopt;

#ifndef __need_getopt
/* Describe the long-named options requested by the application.
   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
   of `struct option' terminated by an element containing a name which is
   zero.

   The field `has_arg' is:
   no_argument          (or 0) if the option does not take an argument,
   required_argument    (or 1) if the option requires an argument,
   optional_argument    (or 2) if the option takes an optional argument.

   If the field `flag' is not NULL, it points to a variable that is set
   to the value given in the field `val' when the option is found, but
   left unchanged if the option is not found.

   To have a long-named option do something other than set an `int' to
   a compiled-in constant, such as set a value from `optarg', set the
   option's `flag' field to zero and its `val' field to a nonzero
   value (the equivalent single-letter option character, if there is
   one).  For long options that have a zero `flag' field, `getopt'
   returns the contents of the `val' field.  */

struct option
{
# if (defined __STDC__ && __STDC__) || defined __cplusplus
  const char *name;
# else
  char *name;
# endif
  /* has_arg can't be an enum because some compilers complain about
     type mismatches in all the code that assumes it is an int.  */
  int has_arg;
  int *flag;
  int val;
};

/* Names for the values of the `has_arg' field of `struct option'.  */

# define no_argument            0
# define required_argument      1
# define optional_argument      2
#endif  /* need getopt */


/* Get definitions and prototypes for functions to process the
   arguments in ARGV (ARGC of them, minus the program name) for
   options given in OPTS.

   Return the option character from OPTS just read.  Return -1 when
   there are no more options.  For unrecognized options, or options
   missing arguments, `optopt' is set to the option letter, and '?' is
   returned.

   The OPTS string is a list of characters which are recognized option
   letters, optionally followed by colons, specifying that that letter
   takes an argument, to be placed in `optarg'.

   If a letter in OPTS is followed by two colons, its argument is
   optional.  This behavior is specific to the GNU `getopt'.

   The argument `--' causes premature termination of argument
   scanning, explicitly telling `getopt' that there are no more
   options.

   If OPTS begins with `--', then non-option arguments are treated as
   arguments to the option '\0'.  This behavior is specific to the GNU
   `getopt'.  */

#if (defined __STDC__ && __STDC__) || defined __cplusplus
# ifdef __GNU_LIBRARY__
/* Many other libraries have conflicting prototypes for getopt, with
   differences in the consts, in stdlib.h.  To avoid compilation
   errors, only prototype getopt for the GNU C library.  */
extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
       __THROW;
# else /* not __GNU_LIBRARY__ */
extern int getopt ();
# endif /* __GNU_LIBRARY__ */

# ifndef __need_getopt
extern int getopt_long (int ___argc, char *const *___argv,
                        const char *__shortopts,
                        const struct option *__longopts, int *__longind)
       __THROW;
extern int getopt_long_only (int ___argc, char *const *___argv,
                             const char *__shortopts,
                             const struct option *__longopts, int *__longind)
       __THROW;

/* Internal only.  Users should not call this directly.  */
extern int _getopt_internal (int ___argc, char *const *___argv,
                             const char *__shortopts,
                             const struct option *__longopts, int *__longind,
                             int __long_only);
# endif
#else /* not __STDC__ */
extern int getopt ();
# ifndef __need_getopt
extern int getopt_long ();
extern int getopt_long_only ();

extern int _getopt_internal ();
# endif
#endif /* __STDC__ */

#ifdef  __cplusplus
}
#endif

/* Make sure we later can get all the definitions and declarations.  */
#undef __need_getopt

#endif /* getopt.h */
Revision:	1347
Committed:	Mon Jul 19 16:32:46 2004 UTC (21 years ago) by gezelter
Content type:	text/plain
File size:	6639 byte(s)
Log Message:	changes for gnu getopt and fixed SPRNG configure script
#	User	Rev	Content
1	gezelter	1347	/* Declarations for getopt.
2			Copyright (C) 1989-1994, 1996-1999,2001,2003 Free Software Foundation, Inc.
3			This file is part of the GNU C Library.
4
5			The GNU C Library is free software; you can redistribute it and/or
6			modify it under the terms of the GNU Lesser General Public
7			License as published by the Free Software Foundation; either
8			version 2.1 of the License, or (at your option) any later version.
9
10			The GNU C Library 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 GNU
13			Lesser General Public License for more details.
14
15			You should have received a copy of the GNU Lesser General Public
16			License along with the GNU C Library; if not, write to the Free
17			Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18			02111-1307 USA. */
19
20			#ifndef _GETOPT_H
21
22			#ifndef __need_getopt
23			# define _GETOPT_H 1
24			#endif
25
26			/* If __GNU_LIBRARY__ is not already defined, either we are being used
27			standalone, or this is the first header included in the source file.
28			If we are being used with glibc, we need to include <features.h>, but
29			that does not exist if we are standalone. So: if __GNU_LIBRARY__ is
30			not defined, include <ctype.h>, which will pull in <features.h> for us
31			if it's from glibc. (Why ctype.h? It's guaranteed to exist and it
32			doesn't flood the namespace with stuff the way some other headers do.) */
33			#if !defined __GNU_LIBRARY__
34			# include <ctype.h>
35			#endif
36
37			#ifndef __THROW
38			# if defined __cplusplus && __GNUC_PREREQ (2,8)
39			# define __THROW throw ()
40			# else
41			# define __THROW
42			# endif
43			#endif
44
45			#ifdef __cplusplus
46			extern "C" {
47			#endif
48
49			/* For communication from `getopt' to the caller.
50			When `getopt' finds an option that takes an argument,
51			the argument value is returned here.
52			Also, when `ordering' is RETURN_IN_ORDER,
53			each non-option ARGV-element is returned here. */
54
55			extern char *optarg;
56
57			/* Index in ARGV of the next element to be scanned.
58			This is used for communication to and from the caller
59			and for communication between successive calls to `getopt'.
60
61			On entry to `getopt', zero means this is the first call; initialize.
62
63			When `getopt' returns -1, this is the index of the first of the
64			non-option elements that the caller should itself scan.
65
66			Otherwise, `optind' communicates from one call to the next
67			how much of ARGV has been scanned so far. */
68
69			extern int optind;
70
71			/* Callers store zero here to inhibit the error message `getopt' prints
72			for unrecognized options. */
73
74			extern int opterr;
75
76			/* Set to an option character which was unrecognized. */
77
78			extern int optopt;
79
80			#ifndef __need_getopt
81			/* Describe the long-named options requested by the application.
82			The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
83			of `struct option' terminated by an element containing a name which is
84			zero.
85
86			The field `has_arg' is:
87			no_argument (or 0) if the option does not take an argument,
88			required_argument (or 1) if the option requires an argument,
89			optional_argument (or 2) if the option takes an optional argument.
90
91			If the field `flag' is not NULL, it points to a variable that is set
92			to the value given in the field `val' when the option is found, but
93			left unchanged if the option is not found.
94
95			To have a long-named option do something other than set an `int' to
96			a compiled-in constant, such as set a value from `optarg', set the
97			option's `flag' field to zero and its `val' field to a nonzero
98			value (the equivalent single-letter option character, if there is
99			one). For long options that have a zero `flag' field, `getopt'
100			returns the contents of the `val' field. */
101
102			struct option
103			{
104			# if (defined __STDC__ && __STDC__) \|\| defined __cplusplus
105			const char *name;
106			# else
107			char *name;
108			# endif
109			/* has_arg can't be an enum because some compilers complain about
110			type mismatches in all the code that assumes it is an int. */
111			int has_arg;
112			int *flag;
113			int val;
114			};
115
116			/* Names for the values of the `has_arg' field of `struct option'. */
117
118			# define no_argument 0
119			# define required_argument 1
120			# define optional_argument 2
121			#endif /* need getopt */
122
123
124			/* Get definitions and prototypes for functions to process the
125			arguments in ARGV (ARGC of them, minus the program name) for
126			options given in OPTS.
127
128			Return the option character from OPTS just read. Return -1 when
129			there are no more options. For unrecognized options, or options
130			missing arguments, `optopt' is set to the option letter, and '?' is
131			returned.
132
133			The OPTS string is a list of characters which are recognized option
134			letters, optionally followed by colons, specifying that that letter
135			takes an argument, to be placed in `optarg'.
136
137			If a letter in OPTS is followed by two colons, its argument is
138			optional. This behavior is specific to the GNU `getopt'.
139
140			The argument `--' causes premature termination of argument
141			scanning, explicitly telling `getopt' that there are no more
142			options.
143
144			If OPTS begins with `--', then non-option arguments are treated as
145			arguments to the option '\0'. This behavior is specific to the GNU
146			`getopt'. */
147
148			#if (defined __STDC__ && __STDC__) \|\| defined __cplusplus
149			# ifdef __GNU_LIBRARY__
150			/* Many other libraries have conflicting prototypes for getopt, with
151			differences in the consts, in stdlib.h. To avoid compilation
152			errors, only prototype getopt for the GNU C library. */
153			extern int getopt (int ___argc, char const ___argv, const char *__shortopts)
154			__THROW;
155			# else /* not __GNU_LIBRARY__ */
156			extern int getopt ();
157			# endif /* __GNU_LIBRARY__ */
158
159			# ifndef __need_getopt
160			extern int getopt_long (int ___argc, char const ___argv,
161			const char *__shortopts,
162			const struct option __longopts, int __longind)
163			__THROW;
164			extern int getopt_long_only (int ___argc, char const ___argv,
165			const char *__shortopts,
166			const struct option __longopts, int __longind)
167			__THROW;
168
169			/* Internal only. Users should not call this directly. */
170			extern int _getopt_internal (int ___argc, char const ___argv,
171			const char *__shortopts,
172			const struct option __longopts, int __longind,
173			int __long_only);
174			# endif
175			#else /* not __STDC__ */
176			extern int getopt ();
177			# ifndef __need_getopt
178			extern int getopt_long ();
179			extern int getopt_long_only ();
180
181			extern int _getopt_internal ();
182			# endif
183			#endif /* __STDC__ */
184
185			#ifdef __cplusplus
186			}
187			#endif
188
189			/* Make sure we later can get all the definitions and declarations. */
190			#undef __need_getopt
191
192			#endif /* getopt.h */