blob: 0f696388b821c8f832d45b614c94b1f4b8314b8e (
plain)
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
110
111
112
|
/* typemax.h -- encapsulate max values for long, long long, etc. */
/* Copyright (C) 2001 Free Software Foundation, Inc.
This file is part of GNU Bash, the Bourne Again SHell.
Bash 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 3 of the License, or
(at your option) any later version.
Bash 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 Bash. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* NOTE: This should be included after config.h, limits.h, stdint.h, and
* inttypes.h
*/
#ifndef _SH_TYPEMAX_H
#define _SH_TYPEMAX_H
#ifndef CHAR_BIT
# define CHAR_BIT 8
#endif
/* Nonzero if the integer type T is signed. */
#ifndef TYPE_SIGNED
# define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
#endif
#ifndef TYPE_SIGNED_MAGNITUDE
# define TYPE_SIGNED_MAGNITUDE(t) ((t) ~ (t) 0 < (t) -1)
#endif
#ifndef TYPE_WIDTH
# define TYPE_WIDTH(t) (sizeof (t) * CHAR_BIT)
#endif
#ifndef TYPE_MINIMUM
# define TYPE_MINIMUM(t) ((t) ~ TYPE_MAXIMUM (t))
#endif
#ifndef TYPE_MAXIMUM
# define TYPE_MAXIMUM(t) \
((t) (! TYPE_SIGNED (t) \
? (t) -1 \
: ((((t) 1 << (TYPE_WIDTH (t) - 2)) - 1) * 2 + 1)))
#endif
#ifdef HAVE_LONG_LONG
# ifndef LLONG_MAX
# define LLONG_MAX TYPE_MAXIMUM(long long int)
# define LLONG_MIN TYPE_MINIMUM(long long int)
# endif
# ifndef ULLONG_MAX
# define ULLONG_MAX TYPE_MAXIMUM(unsigned long long int)
# endif
#endif
#ifndef ULONG_MAX
# define ULONG_MAX ((unsigned long) ~(unsigned long) 0)
#endif
#ifndef LONG_MAX
# define LONG_MAX ((long int) (ULONG_MAX >> 1))
# define LONG_MIN ((long int) (-LONG_MAX - 1L))
#endif
#ifndef INT_MAX /* ouch */
# define INT_MAX TYPE_MAXIMUM(int)
# define INT_MIN TYPE_MINIMUM(int)
# define UINT_MAX ((unsigned int) ~(unsigned int)0)
#endif
/* workaround for gcc bug in versions < 2.7 */
#if defined (HAVE_LONG_LONG) && __GNUC__ == 2 && __GNUC_MINOR__ < 7
static const unsigned long long int maxquad = ULLONG_MAX;
# undef ULLONG_MAX
# define ULLONG_MAX maxquad
#endif
#if !defined (INTMAX_MAX) || !defined (INTMAX_MIN)
#if SIZEOF_INTMAX_T == SIZEOF_LONG_LONG
# define INTMAX_MAX LLONG_MAX
# define INTMAX_MIN LLONG_MIN
#elif SIZEOF_INTMAX_T == SIZEOF_LONG
# define INTMAX_MAX LONG_MAX
# define INTMAX_MIN LONG_MIN
#else
# define INTMAX_MAX INT_MAX
# define INTMAX_MIN INT_MIN
#endif
#endif
#ifndef SSIZE_MAX
# define SSIZE_MAX 32767 /* POSIX minimum max */
#endif
#ifndef SIZE_MAX
# define SIZE_MAX 65535 /* POSIX minimum max */
#endif
#endif /* _SH_TYPEMAX_H */
|
