1 /* Copyright (C) 1991-2023 Free Software Foundation, Inc.
2
3 This file is part of GCC.
4
5 GCC is free software; you can redistribute it and/or modify it under
6 the terms of the GNU General Public License as published by the Free
7 Software Foundation; either version 3, or (at your option) any later
8 version.
9
10 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
11 WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 for more details.
14
15 Under Section 7 of GPL version 3, you are granted additional
16 permissions described in the GCC Runtime Library Exception, version
17 3.1, as published by the Free Software Foundation.
18
19 You should have received a copy of the GNU General Public License and
20 a copy of the GCC Runtime Library Exception along with this program;
21 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
22 <http://www.gnu.org/licenses/>. */
23
24 #ifndef _LIMITS_H___
25 #define _LIMITS_H___
26
27 /* Number of bits in a `char'. */
28 #undef CHAR_BIT
29 #define CHAR_BIT __CHAR_BIT__
30
31 /* Maximum length of a multibyte character. */
32 #ifndef MB_LEN_MAX
33 #define MB_LEN_MAX 1
34 #endif
35
36 /* Minimum and maximum values a `signed char' can hold. */
37 #undef SCHAR_MIN
38 #define SCHAR_MIN (-SCHAR_MAX - 1)
39 #undef SCHAR_MAX
40 #define SCHAR_MAX __SCHAR_MAX__
41
42 /* Maximum value an `unsigned char' can hold. (Minimum is 0). */
43 #undef UCHAR_MAX
44 #if __SCHAR_MAX__ == __INT_MAX__
45 # define UCHAR_MAX (SCHAR_MAX * 2U + 1U)
46 #else
47 # define UCHAR_MAX (SCHAR_MAX * 2 + 1)
48 #endif
49
50 /* Minimum and maximum values a `char' can hold. */
51 #ifdef __CHAR_UNSIGNED__
52 # undef CHAR_MIN
53 # if __SCHAR_MAX__ == __INT_MAX__
54 # define CHAR_MIN 0U
55 # else
56 # define CHAR_MIN 0
57 # endif
58 # undef CHAR_MAX
59 # define CHAR_MAX UCHAR_MAX
60 #else
61 # undef CHAR_MIN
62 # define CHAR_MIN SCHAR_MIN
63 # undef CHAR_MAX
64 # define CHAR_MAX SCHAR_MAX
65 #endif
66
67 /* Minimum and maximum values a `signed short int' can hold. */
68 #undef SHRT_MIN
69 #define SHRT_MIN (-SHRT_MAX - 1)
70 #undef SHRT_MAX
71 #define SHRT_MAX __SHRT_MAX__
72
73 /* Maximum value an `unsigned short int' can hold. (Minimum is 0). */
74 #undef USHRT_MAX
75 #if __SHRT_MAX__ == __INT_MAX__
76 # define USHRT_MAX (SHRT_MAX * 2U + 1U)
77 #else
78 # define USHRT_MAX (SHRT_MAX * 2 + 1)
79 #endif
80
81 /* Minimum and maximum values a `signed int' can hold. */
82 #undef INT_MIN
83 #define INT_MIN (-INT_MAX - 1)
84 #undef INT_MAX
85 #define INT_MAX __INT_MAX__
86
87 /* Maximum value an `unsigned int' can hold. (Minimum is 0). */
88 #undef UINT_MAX
89 #define UINT_MAX (INT_MAX * 2U + 1U)
90
91 /* Minimum and maximum values a `signed long int' can hold.
92 (Same as `int'). */
93 #undef LONG_MIN
94 #define LONG_MIN (-LONG_MAX - 1L)
95 #undef LONG_MAX
96 #define LONG_MAX __LONG_MAX__
97
98 /* Maximum value an `unsigned long int' can hold. (Minimum is 0). */
99 #undef ULONG_MAX
100 #define ULONG_MAX (LONG_MAX * 2UL + 1UL)
101
102 #if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
103 /* Minimum and maximum values a `signed long long int' can hold. */
104 # undef LLONG_MIN
105 # define LLONG_MIN (-LLONG_MAX - 1LL)
106 # undef LLONG_MAX
107 # define LLONG_MAX __LONG_LONG_MAX__
108
109 /* Maximum value an `unsigned long long int' can hold. (Minimum is 0). */
110 # undef ULLONG_MAX
111 # define ULLONG_MAX (LLONG_MAX * 2ULL + 1ULL)
112 #endif
113
114 #if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__)
115 /* Minimum and maximum values a `signed long long int' can hold. */
116 # undef LONG_LONG_MIN
117 # define LONG_LONG_MIN (-LONG_LONG_MAX - 1LL)
118 # undef LONG_LONG_MAX
119 # define LONG_LONG_MAX __LONG_LONG_MAX__
120
121 /* Maximum value an `unsigned long long int' can hold. (Minimum is 0). */
122 # undef ULONG_LONG_MAX
123 # define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1ULL)
124 #endif
125
126 #if (defined __STDC_WANT_IEC_60559_BFP_EXT__ \
127 || (defined (__STDC_VERSION__) && __STDC_VERSION__ > 201710L))
128 /* TS 18661-1 / C2X widths of integer types. */
129 # undef CHAR_WIDTH
130 # define CHAR_WIDTH __SCHAR_WIDTH__
131 # undef SCHAR_WIDTH
132 # define SCHAR_WIDTH __SCHAR_WIDTH__
133 # undef UCHAR_WIDTH
134 # define UCHAR_WIDTH __SCHAR_WIDTH__
135 # undef SHRT_WIDTH
136 # define SHRT_WIDTH __SHRT_WIDTH__
137 # undef USHRT_WIDTH
138 # define USHRT_WIDTH __SHRT_WIDTH__
139 # undef INT_WIDTH
140 # define INT_WIDTH __INT_WIDTH__
141 # undef UINT_WIDTH
142 # define UINT_WIDTH __INT_WIDTH__
143 # undef LONG_WIDTH
144 # define LONG_WIDTH __LONG_WIDTH__
145 # undef ULONG_WIDTH
146 # define ULONG_WIDTH __LONG_WIDTH__
147 # undef LLONG_WIDTH
148 # define LLONG_WIDTH __LONG_LONG_WIDTH__
149 # undef ULLONG_WIDTH
150 # define ULLONG_WIDTH __LONG_LONG_WIDTH__
151 #endif
152
153 #if defined (__STDC_VERSION__) && __STDC_VERSION__ > 201710L
154 /* C2X width and limit of _Bool. */
155 # undef BOOL_MAX
156 # define BOOL_MAX 1
157 # undef BOOL_WIDTH
158 # define BOOL_WIDTH 1
159
160 # define __STDC_VERSION_LIMITS_H__ 202311L
161 #endif
162
163 #endif /* _LIMITS_H___ */