OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [include/] [getopt.h] - Blame information for rev 816

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 38 julius
/* Declarations for getopt.
2
   Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1996, 1997, 1998, 2000,
3
   2002 Free Software Foundation, Inc.
4
 
5
   NOTE: The canonical source of this file is maintained with the GNU C Library.
6
   Bugs can be reported to bug-glibc@gnu.org.
7
 
8
   This program is free software; you can redistribute it and/or modify it
9
   under the terms of the GNU General Public License as published by the
10
   Free Software Foundation; either version 2, or (at your option) any
11
   later version.
12
 
13
   This program is distributed in the hope that it will be useful,
14
   but WITHOUT ANY WARRANTY; without even the implied warranty of
15
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
   GNU General Public License for more details.
17
 
18
   You should have received a copy of the GNU General Public License
19
   along with this program; if not, write to the Free Software
20
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301,
21
   USA.  */
22
 
23
#ifndef _GETOPT_H
24
#define _GETOPT_H 1
25
 
26
#ifdef  __cplusplus
27
extern "C" {
28
#endif
29
 
30
/* For communication from `getopt' to the caller.
31
   When `getopt' finds an option that takes an argument,
32
   the argument value is returned here.
33
   Also, when `ordering' is RETURN_IN_ORDER,
34
   each non-option ARGV-element is returned here.  */
35
 
36
extern char *optarg;
37
 
38
/* Index in ARGV of the next element to be scanned.
39
   This is used for communication to and from the caller
40
   and for communication between successive calls to `getopt'.
41
 
42
   On entry to `getopt', zero means this is the first call; initialize.
43
 
44
   When `getopt' returns -1, this is the index of the first of the
45
   non-option elements that the caller should itself scan.
46
 
47
   Otherwise, `optind' communicates from one call to the next
48
   how much of ARGV has been scanned so far.  */
49
 
50
extern int optind;
51
 
52
/* Callers store zero here to inhibit the error message `getopt' prints
53
   for unrecognized options.  */
54
 
55
extern int opterr;
56
 
57
/* Set to an option character which was unrecognized.  */
58
 
59
extern int optopt;
60
 
61
/* Describe the long-named options requested by the application.
62
   The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector
63
   of `struct option' terminated by an element containing a name which is
64
   zero.
65
 
66
   The field `has_arg' is:
67
   no_argument          (or 0) if the option does not take an argument,
68
   required_argument    (or 1) if the option requires an argument,
69
   optional_argument    (or 2) if the option takes an optional argument.
70
 
71
   If the field `flag' is not NULL, it points to a variable that is set
72
   to the value given in the field `val' when the option is found, but
73
   left unchanged if the option is not found.
74
 
75
   To have a long-named option do something other than set an `int' to
76
   a compiled-in constant, such as set a value from `optarg', set the
77
   option's `flag' field to zero and its `val' field to a nonzero
78
   value (the equivalent single-letter option character, if there is
79
   one).  For long options that have a zero `flag' field, `getopt'
80
   returns the contents of the `val' field.  */
81
 
82
struct option
83
{
84
#if defined (__STDC__) && __STDC__
85
  const char *name;
86
#else
87
  char *name;
88
#endif
89
  /* has_arg can't be an enum because some compilers complain about
90
     type mismatches in all the code that assumes it is an int.  */
91
  int has_arg;
92
  int *flag;
93
  int val;
94
};
95
 
96
/* Names for the values of the `has_arg' field of `struct option'.  */
97
 
98
#define no_argument             0
99
#define required_argument       1
100
#define optional_argument       2
101
 
102
#if defined (__STDC__) && __STDC__
103
/* HAVE_DECL_* is a three-state macro: undefined, 0 or 1.  If it is
104
   undefined, we haven't run the autoconf check so provide the
105
   declaration without arguments.  If it is 0, we checked and failed
106
   to find the declaration so provide a fully prototyped one.  If it
107
   is 1, we found it so don't provide any declaration at all.  */
108
#if !HAVE_DECL_GETOPT
109
#if defined (__GNU_LIBRARY__) || defined (HAVE_DECL_GETOPT)
110
/* Many other libraries have conflicting prototypes for getopt, with
111
   differences in the consts, in unistd.h.  To avoid compilation
112
   errors, only prototype getopt for the GNU C library.  */
113
extern int getopt (int argc, char *const *argv, const char *shortopts);
114
#else
115
#ifndef __cplusplus
116
extern int getopt ();
117
#endif /* __cplusplus */
118
#endif
119
#endif /* !HAVE_DECL_GETOPT */
120
 
121
extern int getopt_long (int argc, char *const *argv, const char *shortopts,
122
                        const struct option *longopts, int *longind);
123
extern int getopt_long_only (int argc, char *const *argv,
124
                             const char *shortopts,
125
                             const struct option *longopts, int *longind);
126
 
127
/* Internal only.  Users should not call this directly.  */
128
extern int _getopt_internal (int argc, char *const *argv,
129
                             const char *shortopts,
130
                             const struct option *longopts, int *longind,
131
                             int long_only);
132
#else /* not __STDC__ */
133
extern int getopt ();
134
extern int getopt_long ();
135
extern int getopt_long_only ();
136
 
137
extern int _getopt_internal ();
138
#endif /* __STDC__ */
139
 
140
#ifdef  __cplusplus
141
}
142
#endif
143
 
144
#endif /* getopt.h */

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.