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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/*===---- limits.h - Standard header for integer sizes --------------------===*\
*
* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
* See https://llvm.org/LICENSE.txt for license information.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*
\*===----------------------------------------------------------------------===*/
#if !defined(__CLANG_LIMITS_H) || !defined(_LIBC_LIMITS_H_)
#define __CLANG_LIMITS_H
#if defined(__MVS__) && __has_include_next(<limits.h>)
#include_next <limits.h>
#else
/* The system's limits.h may, in turn, try to #include_next GCC's limits.h.
Avert this #include_next madness. */
#if defined __GNUC__ && !defined _GCC_LIMITS_H_
#define _GCC_LIMITS_H_
#endif
/* System headers include a number of constants from POSIX in <limits.h>.
Include it if we're hosted. */
#if __STDC_HOSTED__ && __has_include_next(<limits.h>)
#include_next <limits.h>
#endif
/* Many system headers try to "help us out" by defining these. No really, we
know how big each datatype is. */
#undef SCHAR_MIN
#undef SCHAR_MAX
#undef UCHAR_MAX
#undef SHRT_MIN
#undef SHRT_MAX
#undef USHRT_MAX
#undef INT_MIN
#undef INT_MAX
#undef UINT_MAX
#undef LONG_MIN
#undef LONG_MAX
#undef ULONG_MAX
#undef CHAR_BIT
#undef CHAR_MIN
#undef CHAR_MAX
/* C90/99 5.2.4.2.1 */
#define SCHAR_MAX __SCHAR_MAX__
#define SHRT_MAX __SHRT_MAX__
#define INT_MAX __INT_MAX__
#define LONG_MAX __LONG_MAX__
#define SCHAR_MIN (-__SCHAR_MAX__-1)
#define SHRT_MIN (-__SHRT_MAX__ -1)
#define INT_MIN (-__INT_MAX__ -1)
#define LONG_MIN (-__LONG_MAX__ -1L)
#define UCHAR_MAX (__SCHAR_MAX__*2 +1)
#if __SHRT_WIDTH__ < __INT_WIDTH__
#define USHRT_MAX (__SHRT_MAX__ * 2 + 1)
#else
#define USHRT_MAX (__SHRT_MAX__ * 2U + 1U)
#endif
#define UINT_MAX (__INT_MAX__ *2U +1U)
#define ULONG_MAX (__LONG_MAX__ *2UL+1UL)
#ifndef MB_LEN_MAX
#define MB_LEN_MAX 1
#endif
#define CHAR_BIT __CHAR_BIT__
/* C23 5.2.4.2.1 */
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L
#define BOOL_WIDTH __BOOL_WIDTH__
#define CHAR_WIDTH CHAR_BIT
#define SCHAR_WIDTH CHAR_BIT
#define UCHAR_WIDTH CHAR_BIT
#define USHRT_WIDTH __SHRT_WIDTH__
#define SHRT_WIDTH __SHRT_WIDTH__
#define UINT_WIDTH __INT_WIDTH__
#define INT_WIDTH __INT_WIDTH__
#define ULONG_WIDTH __LONG_WIDTH__
#define LONG_WIDTH __LONG_WIDTH__
#define ULLONG_WIDTH __LLONG_WIDTH__
#define LLONG_WIDTH __LLONG_WIDTH__
#define BITINT_MAXWIDTH __BITINT_MAXWIDTH__
#endif
#ifdef __CHAR_UNSIGNED__ /* -funsigned-char */
#define CHAR_MIN 0
#define CHAR_MAX UCHAR_MAX
#else
#define CHAR_MIN SCHAR_MIN
#define CHAR_MAX __SCHAR_MAX__
#endif
/* C99 5.2.4.2.1: Added long long.
C++11 18.3.3.2: same contents as the Standard C Library header <limits.h>.
*/
#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
(defined(__cplusplus) && __cplusplus >= 201103L)
#undef LLONG_MIN
#undef LLONG_MAX
#undef ULLONG_MAX
#define LLONG_MAX __LONG_LONG_MAX__
#define LLONG_MIN (-__LONG_LONG_MAX__-1LL)
#define ULLONG_MAX (__LONG_LONG_MAX__*2ULL+1ULL)
#endif
/* LONG_LONG_MIN/LONG_LONG_MAX/ULONG_LONG_MAX are a GNU extension. It's too bad
that we don't have something like #pragma poison that could be used to
deprecate a macro - the code should just use LLONG_MAX and friends.
*/
#if defined(__GNU_LIBRARY__) ? defined(__USE_GNU) : !defined(__STRICT_ANSI__)
#undef LONG_LONG_MIN
#undef LONG_LONG_MAX
#undef ULONG_LONG_MAX
#define LONG_LONG_MAX __LONG_LONG_MAX__
#define LONG_LONG_MIN (-__LONG_LONG_MAX__-1LL)
#define ULONG_LONG_MAX (__LONG_LONG_MAX__*2ULL+1ULL)
#endif
#endif /* __MVS__ */
#endif /* __CLANG_LIMITS_H */
|
