stdint.h (6412B) - Raw
1 /** 2 * This file has no copyright assigned and is placed in the Public Domain. 3 * This file is part of the mingw-w64 runtime package. 4 * No warranty is given; refer to the file DISCLAIMER.PD 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 signed 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 defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L 74 75 /* 7.18.2.1 Limits of exact-width integer types */ 76 #define INT8_MIN (-128) 77 #define INT16_MIN (-32768) 78 #define INT32_MIN (-2147483647 - 1) 79 #define INT64_MIN (-9223372036854775807LL - 1) 80 81 #define INT8_MAX 127 82 #define INT16_MAX 32767 83 #define INT32_MAX 2147483647 84 #define INT64_MAX 9223372036854775807LL 85 86 #define UINT8_MAX 255 87 #define UINT16_MAX 65535 88 #define UINT32_MAX 0xffffffffU /* 4294967295U */ 89 #define UINT64_MAX 0xffffffffffffffffULL /* 18446744073709551615ULL */ 90 91 /* 7.18.2.2 Limits of minimum-width integer types */ 92 #define INT_LEAST8_MIN INT8_MIN 93 #define INT_LEAST16_MIN INT16_MIN 94 #define INT_LEAST32_MIN INT32_MIN 95 #define INT_LEAST64_MIN INT64_MIN 96 97 #define INT_LEAST8_MAX INT8_MAX 98 #define INT_LEAST16_MAX INT16_MAX 99 #define INT_LEAST32_MAX INT32_MAX 100 #define INT_LEAST64_MAX INT64_MAX 101 102 #define UINT_LEAST8_MAX UINT8_MAX 103 #define UINT_LEAST16_MAX UINT16_MAX 104 #define UINT_LEAST32_MAX UINT32_MAX 105 #define UINT_LEAST64_MAX UINT64_MAX 106 107 /* 7.18.2.3 Limits of fastest minimum-width integer types */ 108 #define INT_FAST8_MIN INT8_MIN 109 #define INT_FAST16_MIN INT16_MIN 110 #define INT_FAST32_MIN INT32_MIN 111 #define INT_FAST64_MIN INT64_MIN 112 113 #define INT_FAST8_MAX INT8_MAX 114 #define INT_FAST16_MAX INT16_MAX 115 #define INT_FAST32_MAX INT32_MAX 116 #define INT_FAST64_MAX INT64_MAX 117 118 #define UINT_FAST8_MAX UINT8_MAX 119 #define UINT_FAST16_MAX UINT16_MAX 120 #define UINT_FAST32_MAX UINT32_MAX 121 #define UINT_FAST64_MAX UINT64_MAX 122 123 /* 7.18.2.4 Limits of integer types capable of holding 124 object pointers */ 125 #ifdef _WIN64 126 #define INTPTR_MIN INT64_MIN 127 #define INTPTR_MAX INT64_MAX 128 #define UINTPTR_MAX UINT64_MAX 129 #else 130 #define INTPTR_MIN INT32_MIN 131 #define INTPTR_MAX INT32_MAX 132 #define UINTPTR_MAX UINT32_MAX 133 #endif 134 135 /* 7.18.2.5 Limits of greatest-width integer types */ 136 #define INTMAX_MIN INT64_MIN 137 #define INTMAX_MAX INT64_MAX 138 #define UINTMAX_MAX UINT64_MAX 139 140 /* 7.18.3 Limits of other integer types */ 141 #ifdef _WIN64 142 #define PTRDIFF_MIN INT64_MIN 143 #define PTRDIFF_MAX INT64_MAX 144 #else 145 #define PTRDIFF_MIN INT32_MIN 146 #define PTRDIFF_MAX INT32_MAX 147 #endif 148 149 #define SIG_ATOMIC_MIN INT32_MIN 150 #define SIG_ATOMIC_MAX INT32_MAX 151 152 #ifndef SIZE_MAX 153 #ifdef _WIN64 154 #define SIZE_MAX UINT64_MAX 155 #else 156 #define SIZE_MAX UINT32_MAX 157 #endif 158 #endif 159 160 #ifndef WCHAR_MIN /* also in wchar.h */ 161 #define WCHAR_MIN 0U 162 #define WCHAR_MAX 0xffffU 163 #endif 164 165 /* 166 * wint_t is unsigned short for compatibility with MS runtime 167 */ 168 #define WINT_MIN 0U 169 #define WINT_MAX 0xffffU 170 171 #endif /* !defined ( __cplusplus) || defined __STDC_LIMIT_MACROS */ 172 173 174 /* 7.18.4 Macros for integer constants */ 175 #if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS) || \ 176 defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L 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) (val) 201 #define UINT16_C(val) (val) 202 #define UINT32_C(val) (val##U) 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 /* _STDINT_H */