1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/** @file
* @brief Wrappers to allow GNU getopt to be used cleanly from C++ code.
*/
/* Copyright (C) 2004,2009,2010 Olly Betts
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#ifndef XAPIAN_INCLUDED_GNU_GETOPT_H
#define XAPIAN_INCLUDED_GNU_GETOPT_H
// We need to include a header to get __GLIBC__ defined. Hopefully <cctype>
// is a safe bet.
#include <cctype>
#define GNU_GETOPT_INTERFACE_VERSION 2
#if defined __GLIBC__ && __GLIBC__ >= 2
# include <gnu-versions.h>
# if _GNU_GETOPT_INTERFACE_VERSION == GNU_GETOPT_INTERFACE_VERSION
# define USE_GLIBC_GNUGETOPT
# endif
#endif
#ifdef USE_GLIBC_GNUGETOPT
#include <getopt.h>
inline int
gnu_getopt(int argc_, char *const *argv_, const char *shortopts_) {
return getopt(argc_, argv_, shortopts_);
}
inline int
gnu_getopt_long(int argc_, char *const *argv_, const char *shortopts_,
const struct option *longopts_, int *optind_) {
return getopt_long(argc_, argv_, shortopts_, longopts_, optind_);
}
inline int
gnu_getopt_long_only(int argc_, char *const *argv_, const char *shortopts_,
const struct option *longopts_, int *optind_) {
return getopt_long_only(argc_, argv_, shortopts_, longopts_, optind_);
}
#else
#ifdef __CYGWIN__
// Cygwin has __declspec(dllimport) magic on optarg, etc, so just pull in the
// header there rather than trying to duplicate that.
# include <getopt.h>
#else
extern "C" {
extern char *optarg;
extern int optind;
extern int opterr;
extern int optopt;
}
struct option {
const char *name;
int has_arg;
int * flag;
int val;
};
# define no_argument 0
# define required_argument 1
# define optional_argument 2
#endif
// For internal use only.
int
gnu_getopt_internal_(int, char *const *, const char *, const struct option *,
int *, int);
inline int
gnu_getopt(int argc_, char *const *argv_, const char *shortopts_) {
return gnu_getopt_internal_(argc_, argv_, shortopts_,
reinterpret_cast<const struct option *>(0),
reinterpret_cast<int *>(0), 0);
}
inline int
gnu_getopt_long(int argc_, char *const *argv_, const char *shortopts_,
const struct option *longopts_, int *optind_) {
return gnu_getopt_internal_(argc_, argv_, shortopts_, longopts_, optind_, 0);
}
inline int
gnu_getopt_long_only(int argc_, char *const *argv_, const char *shortopts_,
const struct option *longopts_, int *optind_) {
return gnu_getopt_internal_(argc_, argv_, shortopts_, longopts_, optind_, 1);
}
#endif
#endif
|
