[HEADERS]
[reactos.git] / reactos / include / crt / stdint.h
1 /**
2 * This file has no copyright assigned and is placed in the Public Domain.
3 * This file is part of the w64 mingw-runtime package.
4 * No warranty is given; refer to the file DISCLAIMER within this package.
5 */
6 /* ISO C9x 7.18 Integer types <stdint.h>
7 * Based on ISO/IEC SC22/WG14 9899 Committee draft (SC22 N2794)
8 *
9 * THIS SOFTWARE IS NOT COPYRIGHTED
10 *
11 * Contributor: Danny Smith <danny_r_smith_2001@yahoo.co.nz>
12 *
13 * This source code is offered for use in the public domain. You may
14 * use, modify or distribute it freely.
15 *
16 * This code is distributed in the hope that it will be useful but
17 * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
18 * DISCLAIMED. This includes but is not limited to warranties of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
20 *
21 * Date: 2000-12-02
22 */
23
24
25 #ifndef _STDINT_H
26 #define _STDINT_H
27
28 #include <crtdefs.h>
29
30 #define __need_wint_t
31 #define __need_wchar_t
32 #include "stddef.h"
33
34 /* 7.18.1.1 Exact-width integer types */
35 typedef signed char int8_t;
36 typedef unsigned char uint8_t;
37 typedef short int16_t;
38 typedef unsigned short uint16_t;
39 typedef int int32_t;
40 typedef unsigned uint32_t;
41 __MINGW_EXTENSION typedef long long int64_t;
42 __MINGW_EXTENSION typedef unsigned long long uint64_t;
43
44 /* 7.18.1.2 Minimum-width integer types */
45 typedef signed char int_least8_t;
46 typedef unsigned char uint_least8_t;
47 typedef short int_least16_t;
48 typedef unsigned short uint_least16_t;
49 typedef int int_least32_t;
50 typedef unsigned uint_least32_t;
51 __MINGW_EXTENSION typedef long long int_least64_t;
52 __MINGW_EXTENSION typedef unsigned long long uint_least64_t;
53
54 /* 7.18.1.3 Fastest minimum-width integer types
55 * Not actually guaranteed to be fastest for all purposes
56 * Here we use the exact-width types for 8 and 16-bit ints.
57 */
58 typedef char int_fast8_t;
59 typedef unsigned char uint_fast8_t;
60 typedef short int_fast16_t;
61 typedef unsigned short uint_fast16_t;
62 typedef int int_fast32_t;
63 typedef unsigned int uint_fast32_t;
64 __MINGW_EXTENSION typedef long long int_fast64_t;
65 __MINGW_EXTENSION typedef unsigned long long uint_fast64_t;
66
67 /* 7.18.1.5 Greatest-width integer types */
68 __MINGW_EXTENSION typedef long long intmax_t;
69 __MINGW_EXTENSION typedef unsigned long long uintmax_t;
70
71 /* 7.18.2 Limits of specified-width integer types */
72 #if !defined ( __cplusplus) || defined (__STDC_LIMIT_MACROS)
73
74 /* 7.18.2.1 Limits of exact-width integer types */
75 #define INT8_MIN (-128)
76 #define INT16_MIN (-32768)
77 #define INT32_MIN (-2147483647 - 1)
78 #define INT64_MIN (-9223372036854775807LL - 1)
79
80 #define INT8_MAX 127
81 #define INT16_MAX 32767
82 #define INT32_MAX 2147483647
83 #define INT64_MAX 9223372036854775807LL
84
85 #define UINT8_MAX 0xff /* 255U */
86 #define UINT16_MAX 0xffff /* 65535U */
87 #define UINT32_MAX 0xffffffff /* 4294967295U */
88 #define UINT64_MAX 0xffffffffffffffffULL /* 18446744073709551615ULL */
89
90 /* 7.18.2.2 Limits of minimum-width integer types */
91 #define INT_LEAST8_MIN INT8_MIN
92 #define INT_LEAST16_MIN INT16_MIN
93 #define INT_LEAST32_MIN INT32_MIN
94 #define INT_LEAST64_MIN INT64_MIN
95
96 #define INT_LEAST8_MAX INT8_MAX
97 #define INT_LEAST16_MAX INT16_MAX
98 #define INT_LEAST32_MAX INT32_MAX
99 #define INT_LEAST64_MAX INT64_MAX
100
101 #define UINT_LEAST8_MAX UINT8_MAX
102 #define UINT_LEAST16_MAX UINT16_MAX
103 #define UINT_LEAST32_MAX UINT32_MAX
104 #define UINT_LEAST64_MAX UINT64_MAX
105
106 /* 7.18.2.3 Limits of fastest minimum-width integer types */
107 #define INT_FAST8_MIN INT8_MIN
108 #define INT_FAST16_MIN INT16_MIN
109 #define INT_FAST32_MIN INT32_MIN
110 #define INT_FAST64_MIN INT64_MIN
111
112 #define INT_FAST8_MAX INT8_MAX
113 #define INT_FAST16_MAX INT16_MAX
114 #define INT_FAST32_MAX INT32_MAX
115 #define INT_FAST64_MAX INT64_MAX
116
117 #define UINT_FAST8_MAX UINT8_MAX
118 #define UINT_FAST16_MAX UINT16_MAX
119 #define UINT_FAST32_MAX UINT32_MAX
120 #define UINT_FAST64_MAX UINT64_MAX
121
122 /* 7.18.2.4 Limits of integer types capable of holding
123 object pointers */
124 #ifdef _WIN64
125 #define INTPTR_MIN INT64_MIN
126 #define INTPTR_MAX INT64_MAX
127 #define UINTPTR_MAX UINT64_MAX
128 #else
129 #define INTPTR_MIN INT32_MIN
130 #define INTPTR_MAX INT32_MAX
131 #define UINTPTR_MAX UINT32_MAX
132 #endif
133
134 /* 7.18.2.5 Limits of greatest-width integer types */
135 #define INTMAX_MIN INT64_MIN
136 #define INTMAX_MAX INT64_MAX
137 #define UINTMAX_MAX UINT64_MAX
138
139 /* 7.18.3 Limits of other integer types */
140 #ifdef _WIN64
141 #define PTRDIFF_MIN INT64_MIN
142 #define PTRDIFF_MAX INT64_MAX
143 #else
144 #define PTRDIFF_MIN INT32_MIN
145 #define PTRDIFF_MAX INT32_MAX
146 #endif
147
148 #define SIG_ATOMIC_MIN INT32_MIN
149 #define SIG_ATOMIC_MAX INT32_MAX
150
151 #ifndef SIZE_MAX
152 #ifdef _WIN64
153 #define SIZE_MAX UINT64_MAX
154 #else
155 #define SIZE_MAX UINT32_MAX
156 #endif
157 #endif
158
159 #ifndef WCHAR_MIN /* also in wchar.h */
160 #define WCHAR_MIN 0
161 #endif
162 #ifndef WCHAR_MAX
163 #define WCHAR_MAX ((wchar_t)-1) /* UINT16_MAX */
164 #endif
165
166 /*
167 * wint_t is unsigned short for compatibility with MS runtime
168 */
169 #define WINT_MIN 0
170 #define WINT_MAX ((wint_t)-1) /* UINT16_MAX */
171
172 #endif /* !defined ( __cplusplus) || defined __STDC_LIMIT_MACROS */
173
174
175 /* 7.18.4 Macros for integer constants */
176 #if !defined ( __cplusplus) || defined (__STDC_CONSTANT_MACROS)
177
178 /* 7.18.4.1 Macros for minimum-width integer constants
179
180 Accoding to Douglas Gwyn <gwyn@arl.mil>:
181 "This spec was changed in ISO/IEC 9899:1999 TC1; in ISO/IEC
182 9899:1999 as initially published, the expansion was required
183 to be an integer constant of precisely matching type, which
184 is impossible to accomplish for the shorter types on most
185 platforms, because C99 provides no standard way to designate
186 an integer constant with width less than that of type int.
187 TC1 changed this to require just an integer constant
188 *expression* with *promoted* type."
189
190 The trick used here is from Clive D W Feather.
191 */
192
193 #define INT8_C(val) (INT_LEAST8_MAX-INT_LEAST8_MAX+(val))
194 #define INT16_C(val) (INT_LEAST16_MAX-INT_LEAST16_MAX+(val))
195 #define INT32_C(val) (INT_LEAST32_MAX-INT_LEAST32_MAX+(val))
196 /* The 'trick' doesn't work in C89 for long long because, without
197 suffix, (val) will be evaluated as int, not intmax_t */
198 #define INT64_C(val) val##LL
199
200 #define UINT8_C(val) (UINT_LEAST8_MAX-UINT_LEAST8_MAX+(val))
201 #define UINT16_C(val) (UINT_LEAST16_MAX-UINT_LEAST16_MAX+(val))
202 #define UINT32_C(val) (UINT_LEAST32_MAX-UINT_LEAST32_MAX+(val))
203 #define UINT64_C(val) val##ULL
204
205 /* 7.18.4.2 Macros for greatest-width integer constants */
206 #define INTMAX_C(val) val##LL
207 #define UINTMAX_C(val) val##ULL
208
209 #endif /* !defined ( __cplusplus) || defined __STDC_CONSTANT_MACROS */
210
211 #endif