stdint.h (8775B)
1 /* Copyright (C) 1997,1998,1999,2000,2001,2006 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <http://www.gnu.org/licenses/>. */ 17 18 /* 19 * ISO C99: 7.18 Integer types <stdint.h> 20 */ 21 22 #ifndef _STDINT_H_ 23 #define _STDINT_H_ 24 25 /* Exact integral types. */ 26 27 /* Signed. */ 28 29 /* There is some amount of overlap with <sys/types.h> as known by inet code */ 30 #ifndef __int8_t_defined 31 # define __int8_t_defined 32 typedef signed char int8_t; 33 typedef short int int16_t; 34 typedef int int32_t; 35 # if __WORDSIZE == 64 36 typedef long int int64_t; 37 # else 38 __extension__ 39 typedef long long int int64_t; 40 # endif 41 #endif 42 43 /* Unsigned. */ 44 typedef unsigned char uint8_t; 45 typedef unsigned short int uint16_t; 46 #ifndef __uint32_t_defined 47 typedef unsigned int uint32_t; 48 # define __uint32_t_defined 49 #endif 50 #if __WORDSIZE == 64 51 typedef unsigned long int uint64_t; 52 #else 53 __extension__ 54 typedef unsigned long long int uint64_t; 55 #endif 56 57 58 /* Small types. */ 59 60 /* Signed. */ 61 typedef signed char int_least8_t; 62 typedef short int int_least16_t; 63 typedef int int_least32_t; 64 #if __WORDSIZE == 64 65 typedef long int int_least64_t; 66 #else 67 __extension__ 68 typedef long long int int_least64_t; 69 #endif 70 71 /* Unsigned. */ 72 typedef unsigned char uint_least8_t; 73 typedef unsigned short int uint_least16_t; 74 typedef unsigned int uint_least32_t; 75 #if __WORDSIZE == 64 76 typedef unsigned long int uint_least64_t; 77 #else 78 __extension__ 79 typedef unsigned long long int uint_least64_t; 80 #endif 81 82 83 /* Fast types. */ 84 85 /* Signed. */ 86 typedef signed char int_fast8_t; 87 #if __WORDSIZE == 64 88 typedef long int int_fast16_t; 89 typedef long int int_fast32_t; 90 typedef long int int_fast64_t; 91 #else 92 typedef int int_fast16_t; 93 typedef int int_fast32_t; 94 __extension__ 95 typedef long long int int_fast64_t; 96 #endif 97 98 /* Unsigned. */ 99 typedef unsigned char uint_fast8_t; 100 #if __WORDSIZE == 64 101 typedef unsigned long int uint_fast16_t; 102 typedef unsigned long int uint_fast32_t; 103 typedef unsigned long int uint_fast64_t; 104 #else 105 typedef unsigned int uint_fast16_t; 106 typedef unsigned int uint_fast32_t; 107 __extension__ 108 typedef unsigned long long int uint_fast64_t; 109 #endif 110 111 112 /* Types for `void *' pointers. */ 113 #if __WORDSIZE == 64 114 # ifndef __intptr_t_defined 115 typedef long int intptr_t; 116 # define __intptr_t_defined 117 # endif 118 typedef unsigned long int uintptr_t; 119 #else 120 # ifndef __intptr_t_defined 121 typedef int intptr_t; 122 # define __intptr_t_defined 123 # endif 124 typedef unsigned int uintptr_t; 125 #endif 126 127 128 /* Largest integral types. */ 129 #if __WORDSIZE == 64 130 typedef long int intmax_t; 131 typedef unsigned long int uintmax_t; 132 #else 133 __extension__ 134 typedef long long int intmax_t; 135 __extension__ 136 typedef unsigned long long int uintmax_t; 137 #endif 138 139 140 /* The ISO C99 standard specifies that in C++ implementations these 141 macros should only be defined if explicitly requested. */ 142 #if !defined __cplusplus || defined __STDC_LIMIT_MACROS 143 144 # if __WORDSIZE == 64 145 # define __INT64_C(c) c ## L 146 # define __UINT64_C(c) c ## UL 147 # else 148 # define __INT64_C(c) c ## LL 149 # define __UINT64_C(c) c ## ULL 150 # endif 151 152 /* Limits of integral types. */ 153 154 /* Minimum of signed integral types. */ 155 # define INT8_MIN (-128) 156 # define INT16_MIN (-32767-1) 157 # define INT32_MIN (-2147483647-1) 158 # define INT64_MIN (-__INT64_C(9223372036854775807)-1) 159 /* Maximum of signed integral types. */ 160 # define INT8_MAX (127) 161 # define INT16_MAX (32767) 162 # define INT32_MAX (2147483647) 163 # define INT64_MAX (__INT64_C(9223372036854775807)) 164 165 /* Maximum of unsigned integral types. */ 166 # define UINT8_MAX (255) 167 # define UINT16_MAX (65535) 168 # define UINT32_MAX (4294967295U) 169 # define UINT64_MAX (__UINT64_C(18446744073709551615)) 170 171 172 /* Minimum of signed integral types having a minimum size. */ 173 # define INT_LEAST8_MIN (-128) 174 # define INT_LEAST16_MIN (-32767-1) 175 # define INT_LEAST32_MIN (-2147483647-1) 176 # define INT_LEAST64_MIN (-__INT64_C(9223372036854775807)-1) 177 /* Maximum of signed integral types having a minimum size. */ 178 # define INT_LEAST8_MAX (127) 179 # define INT_LEAST16_MAX (32767) 180 # define INT_LEAST32_MAX (2147483647) 181 # define INT_LEAST64_MAX (__INT64_C(9223372036854775807)) 182 183 /* Maximum of unsigned integral types having a minimum size. */ 184 # define UINT_LEAST8_MAX (255) 185 # define UINT_LEAST16_MAX (65535) 186 # define UINT_LEAST32_MAX (4294967295U) 187 # define UINT_LEAST64_MAX (__UINT64_C(18446744073709551615)) 188 189 190 /* Minimum of fast signed integral types having a minimum size. */ 191 # define INT_FAST8_MIN (-128) 192 # if __WORDSIZE == 64 193 # define INT_FAST16_MIN (-9223372036854775807L-1) 194 # define INT_FAST32_MIN (-9223372036854775807L-1) 195 # else 196 # define INT_FAST16_MIN (-2147483647-1) 197 # define INT_FAST32_MIN (-2147483647-1) 198 # endif 199 # define INT_FAST64_MIN (-__INT64_C(9223372036854775807)-1) 200 /* Maximum of fast signed integral types having a minimum size. */ 201 # define INT_FAST8_MAX (127) 202 # if __WORDSIZE == 64 203 # define INT_FAST16_MAX (9223372036854775807L) 204 # define INT_FAST32_MAX (9223372036854775807L) 205 # else 206 # define INT_FAST16_MAX (2147483647) 207 # define INT_FAST32_MAX (2147483647) 208 # endif 209 # define INT_FAST64_MAX (__INT64_C(9223372036854775807)) 210 211 /* Maximum of fast unsigned integral types having a minimum size. */ 212 # define UINT_FAST8_MAX (255) 213 # if __WORDSIZE == 64 214 # define UINT_FAST16_MAX (18446744073709551615UL) 215 # define UINT_FAST32_MAX (18446744073709551615UL) 216 # else 217 # define UINT_FAST16_MAX (4294967295U) 218 # define UINT_FAST32_MAX (4294967295U) 219 # endif 220 # define UINT_FAST64_MAX (__UINT64_C(18446744073709551615)) 221 222 223 /* Values to test for integral types holding `void *' pointer. */ 224 # if __WORDSIZE == 64 225 # define INTPTR_MIN (-9223372036854775807L-1) 226 # define INTPTR_MAX (9223372036854775807L) 227 # define UINTPTR_MAX (18446744073709551615UL) 228 # else 229 # define INTPTR_MIN (-2147483647-1) 230 # define INTPTR_MAX (2147483647) 231 # define UINTPTR_MAX (4294967295U) 232 # endif 233 234 235 /* Minimum for largest signed integral type. */ 236 # define INTMAX_MIN (-__INT64_C(9223372036854775807)-1) 237 /* Maximum for largest signed integral type. */ 238 # define INTMAX_MAX (__INT64_C(9223372036854775807)) 239 240 /* Maximum for largest unsigned integral type. */ 241 # define UINTMAX_MAX (__UINT64_C(18446744073709551615)) 242 243 /* Limits of other integer types. */ 244 245 /* Limits of `ptrdiff_t' type. */ 246 # if __WORDSIZE == 64 247 # define PTRDIFF_MIN (-9223372036854775807L-1) 248 # define PTRDIFF_MAX (9223372036854775807L) 249 # else 250 # define PTRDIFF_MIN (-2147483647-1) 251 # define PTRDIFF_MAX (2147483647) 252 # endif 253 254 /* Limits of `sig_atomic_t'. */ 255 # define SIG_ATOMIC_MIN (-2147483647-1) 256 # define SIG_ATOMIC_MAX (2147483647) 257 258 /* Limit of `size_t' type. */ 259 # if __WORDSIZE == 64 260 # define SIZE_MAX (18446744073709551615UL) 261 # else 262 # define SIZE_MAX (4294967295U) 263 # endif 264 265 #ifdef __UCLIBC_HAS_WCHAR__ 266 /* Limits of `wchar_t'. */ 267 # ifndef WCHAR_MIN 268 /* These constants might also be defined in <wchar.h>. */ 269 # define WCHAR_MIN __WCHAR_MIN 270 # define WCHAR_MAX __WCHAR_MAX 271 # endif 272 273 /* Limits of `wint_t'. */ 274 # define WINT_MIN (0u) 275 # define WINT_MAX (4294967295u) 276 #endif /* __UCLIBC_HAS_WCHAR__ */ 277 278 #endif /* C++ && limit macros */ 279 280 281 /* The ISO C99 standard specifies that in C++ implementations these 282 should only be defined if explicitly requested. */ 283 #if !defined __cplusplus || defined __STDC_CONSTANT_MACROS 284 285 /* Signed. */ 286 # define INT8_C(c) c 287 # define INT16_C(c) c 288 # define INT32_C(c) c 289 # if __WORDSIZE == 64 290 # define INT64_C(c) c ## L 291 # else 292 # define INT64_C(c) c ## LL 293 # endif 294 295 /* Unsigned. */ 296 # define UINT8_C(c) c 297 # define UINT16_C(c) c 298 # define UINT32_C(c) c ## U 299 # if __WORDSIZE == 64 300 # define UINT64_C(c) c ## UL 301 # else 302 # define UINT64_C(c) c ## ULL 303 # endif 304 305 /* Maximal type. */ 306 # if __WORDSIZE == 64 307 # define INTMAX_C(c) c ## L 308 # define UINTMAX_C(c) c ## UL 309 # else 310 # define INTMAX_C(c) c ## LL 311 # define UINTMAX_C(c) c ## ULL 312 # endif 313 314 #endif /* C++ && constant macros */ 315 316 #endif // _STDINT_H_