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| 1 /*===---- stdint.h - Standard header for sized integer types --------------===*\ | |
| 2 * | |
| 3 * Copyright (c) 2009 Chris Lattner | |
| 4 * | |
| 5 * Permission is hereby granted, free of charge, to any person obtaining a copy | |
| 6 * of this software and associated documentation files (the "Software"), to deal | |
| 7 * in the Software without restriction, including without limitation the rights | |
| 8 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
| 9 * copies of the Software, and to permit persons to whom the Software is | |
| 10 * furnished to do so, subject to the following conditions: | |
| 11 * | |
| 12 * The above copyright notice and this permission notice shall be included in | |
| 13 * all copies or substantial portions of the Software. | |
| 14 * | |
| 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
| 18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
| 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
| 20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
| 21 * THE SOFTWARE. | |
| 22 * | |
| 23 \*===----------------------------------------------------------------------===*/ | |
| 24 | |
| 25 #ifndef __CLANG_STDINT_H | |
| 26 #define __CLANG_STDINT_H | |
| 27 | |
| 28 /* If we're hosted, fall back to the system's stdint.h, which might have | |
| 29 * additional definitions. | |
| 30 */ | |
| 31 #if __STDC_HOSTED__ && \ | |
| 32 defined(__has_include_next) && __has_include_next(<stdint.h>) | |
| 33 | |
| 34 // C99 7.18.3 Limits of other integer types | |
| 35 // | |
| 36 // Footnote 219, 220: C++ implementations should define these macros only when | |
| 37 // __STDC_LIMIT_MACROS is defined before <stdint.h> is included. | |
| 38 // | |
| 39 // Footnote 222: C++ implementations should define these macros only when | |
| 40 // __STDC_CONSTANT_MACROS is defined before <stdint.h> is included. | |
| 41 // | |
| 42 // C++11 [cstdint.syn]p2: | |
| 43 // | |
| 44 // The macros defined by <cstdint> are provided unconditionally. In particular, | |
| 45 // the symbols __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS (mentioned in | |
| 46 // footnotes 219, 220, and 222 in the C standard) play no role in C++. | |
| 47 // | |
| 48 // C11 removed the problematic footnotes. | |
| 49 // | |
| 50 // Work around this inconsistency by always defining those macros in C++ mode, | |
| 51 // so that a C library implementation which follows the C99 standard can be | |
| 52 // used in C++. | |
| 53 # ifdef __cplusplus | |
| 54 # if !defined(__STDC_LIMIT_MACROS) | |
| 55 # define __STDC_LIMIT_MACROS | |
| 56 # define __STDC_LIMIT_MACROS_DEFINED_BY_CLANG | |
| 57 # endif | |
| 58 # if !defined(__STDC_CONSTANT_MACROS) | |
| 59 # define __STDC_CONSTANT_MACROS | |
| 60 # define __STDC_CONSTANT_MACROS_DEFINED_BY_CLANG | |
| 61 # endif | |
| 62 # endif | |
| 63 | |
| 64 # include_next <stdint.h> | |
| 65 | |
| 66 # ifdef __STDC_LIMIT_MACROS_DEFINED_BY_CLANG | |
| 67 # undef __STDC_LIMIT_MACROS | |
| 68 # undef __STDC_LIMIT_MACROS_DEFINED_BY_CLANG | |
| 69 # endif | |
| 70 # ifdef __STDC_CONSTANT_MACROS_DEFINED_BY_CLANG | |
| 71 # undef __STDC_CONSTANT_MACROS | |
| 72 # undef __STDC_CONSTANT_MACROS_DEFINED_BY_CLANG | |
| 73 # endif | |
| 74 | |
| 75 #else | |
| 76 | |
| 77 /* C99 7.18.1.1 Exact-width integer types. | |
| 78 * C99 7.18.1.2 Minimum-width integer types. | |
| 79 * C99 7.18.1.3 Fastest minimum-width integer types. | |
| 80 * | |
| 81 * The standard requires that exact-width type be defined for 8-, 16-, 32-, and | |
| 82 * 64-bit types if they are implemented. Other exact width types are optional. | |
| 83 * This implementation defines an exact-width types for every integer width | |
| 84 * that is represented in the standard integer types. | |
| 85 * | |
| 86 * The standard also requires minimum-width types be defined for 8-, 16-, 32-, | |
| 87 * and 64-bit widths regardless of whether there are corresponding exact-width | |
| 88 * types. | |
| 89 * | |
| 90 * To accommodate targets that are missing types that are exactly 8, 16, 32, or | |
| 91 * 64 bits wide, this implementation takes an approach of cascading | |
| 92 * redefintions, redefining __int_leastN_t to successively smaller exact-width | |
| 93 * types. It is therefore important that the types are defined in order of | |
| 94 * descending widths. | |
| 95 * | |
| 96 * We currently assume that the minimum-width types and the fastest | |
| 97 * minimum-width types are the same. This is allowed by the standard, but is | |
| 98 * suboptimal. | |
| 99 * | |
| 100 * In violation of the standard, some targets do not implement a type that is | |
| 101 * wide enough to represent all of the required widths (8-, 16-, 32-, 64-bit). | |
| 102 * To accommodate these targets, a required minimum-width type is only | |
| 103 * defined if there exists an exact-width type of equal or greater width. | |
| 104 */ | |
| 105 | |
| 106 #ifdef __INT64_TYPE__ | |
| 107 # ifndef __int8_t_defined /* glibc sys/types.h also defines int64_t*/ | |
| 108 typedef signed __INT64_TYPE__ int64_t; | |
| 109 # endif /* __int8_t_defined */ | |
| 110 typedef unsigned __INT64_TYPE__ uint64_t; | |
| 111 # define __int_least64_t int64_t | |
| 112 # define __uint_least64_t uint64_t | |
| 113 # define __int_least32_t int64_t | |
| 114 # define __uint_least32_t uint64_t | |
| 115 # define __int_least16_t int64_t | |
| 116 # define __uint_least16_t uint64_t | |
| 117 # define __int_least8_t int64_t | |
| 118 # define __uint_least8_t uint64_t | |
| 119 #endif /* __INT64_TYPE__ */ | |
| 120 | |
| 121 #ifdef __int_least64_t | |
| 122 typedef __int_least64_t int_least64_t; | |
| 123 typedef __uint_least64_t uint_least64_t; | |
| 124 typedef __int_least64_t int_fast64_t; | |
| 125 typedef __uint_least64_t uint_fast64_t; | |
| 126 #endif /* __int_least64_t */ | |
| 127 | |
| 128 #ifdef __INT56_TYPE__ | |
| 129 typedef signed __INT56_TYPE__ int56_t; | |
| 130 typedef unsigned __INT56_TYPE__ uint56_t; | |
| 131 typedef int56_t int_least56_t; | |
| 132 typedef uint56_t uint_least56_t; | |
| 133 typedef int56_t int_fast56_t; | |
| 134 typedef uint56_t uint_fast56_t; | |
| 135 # define __int_least32_t int56_t | |
| 136 # define __uint_least32_t uint56_t | |
| 137 # define __int_least16_t int56_t | |
| 138 # define __uint_least16_t uint56_t | |
| 139 # define __int_least8_t int56_t | |
| 140 # define __uint_least8_t uint56_t | |
| 141 #endif /* __INT56_TYPE__ */ | |
| 142 | |
| 143 | |
| 144 #ifdef __INT48_TYPE__ | |
| 145 typedef signed __INT48_TYPE__ int48_t; | |
| 146 typedef unsigned __INT48_TYPE__ uint48_t; | |
| 147 typedef int48_t int_least48_t; | |
| 148 typedef uint48_t uint_least48_t; | |
| 149 typedef int48_t int_fast48_t; | |
| 150 typedef uint48_t uint_fast48_t; | |
| 151 # define __int_least32_t int48_t | |
| 152 # define __uint_least32_t uint48_t | |
| 153 # define __int_least16_t int48_t | |
| 154 # define __uint_least16_t uint48_t | |
| 155 # define __int_least8_t int48_t | |
| 156 # define __uint_least8_t uint48_t | |
| 157 #endif /* __INT48_TYPE__ */ | |
| 158 | |
| 159 | |
| 160 #ifdef __INT40_TYPE__ | |
| 161 typedef signed __INT40_TYPE__ int40_t; | |
| 162 typedef unsigned __INT40_TYPE__ uint40_t; | |
| 163 typedef int40_t int_least40_t; | |
| 164 typedef uint40_t uint_least40_t; | |
| 165 typedef int40_t int_fast40_t; | |
| 166 typedef uint40_t uint_fast40_t; | |
| 167 # define __int_least32_t int40_t | |
| 168 # define __uint_least32_t uint40_t | |
| 169 # define __int_least16_t int40_t | |
| 170 # define __uint_least16_t uint40_t | |
| 171 # define __int_least8_t int40_t | |
| 172 # define __uint_least8_t uint40_t | |
| 173 #endif /* __INT40_TYPE__ */ | |
| 174 | |
| 175 | |
| 176 #ifdef __INT32_TYPE__ | |
| 177 | |
| 178 # ifndef __int8_t_defined /* glibc sys/types.h also defines int32_t*/ | |
| 179 typedef signed __INT32_TYPE__ int32_t; | |
| 180 # endif /* __int8_t_defined */ | |
| 181 | |
| 182 # ifndef __uint32_t_defined /* more glibc compatibility */ | |
| 183 # define __uint32_t_defined | |
| 184 typedef unsigned __INT32_TYPE__ uint32_t; | |
| 185 # endif /* __uint32_t_defined */ | |
| 186 | |
| 187 # define __int_least32_t int32_t | |
| 188 # define __uint_least32_t uint32_t | |
| 189 # define __int_least16_t int32_t | |
| 190 # define __uint_least16_t uint32_t | |
| 191 # define __int_least8_t int32_t | |
| 192 # define __uint_least8_t uint32_t | |
| 193 #endif /* __INT32_TYPE__ */ | |
| 194 | |
| 195 #ifdef __int_least32_t | |
| 196 typedef __int_least32_t int_least32_t; | |
| 197 typedef __uint_least32_t uint_least32_t; | |
| 198 typedef __int_least32_t int_fast32_t; | |
| 199 typedef __uint_least32_t uint_fast32_t; | |
| 200 #endif /* __int_least32_t */ | |
| 201 | |
| 202 #ifdef __INT24_TYPE__ | |
| 203 typedef signed __INT24_TYPE__ int24_t; | |
| 204 typedef unsigned __INT24_TYPE__ uint24_t; | |
| 205 typedef int24_t int_least24_t; | |
| 206 typedef uint24_t uint_least24_t; | |
| 207 typedef int24_t int_fast24_t; | |
| 208 typedef uint24_t uint_fast24_t; | |
| 209 # define __int_least16_t int24_t | |
| 210 # define __uint_least16_t uint24_t | |
| 211 # define __int_least8_t int24_t | |
| 212 # define __uint_least8_t uint24_t | |
| 213 #endif /* __INT24_TYPE__ */ | |
| 214 | |
| 215 #ifdef __INT16_TYPE__ | |
| 216 #ifndef __int8_t_defined /* glibc sys/types.h also defines int16_t*/ | |
| 217 typedef signed __INT16_TYPE__ int16_t; | |
| 218 #endif /* __int8_t_defined */ | |
| 219 typedef unsigned __INT16_TYPE__ uint16_t; | |
| 220 # define __int_least16_t int16_t | |
| 221 # define __uint_least16_t uint16_t | |
| 222 # define __int_least8_t int16_t | |
| 223 # define __uint_least8_t uint16_t | |
| 224 #endif /* __INT16_TYPE__ */ | |
| 225 | |
| 226 #ifdef __int_least16_t | |
| 227 typedef __int_least16_t int_least16_t; | |
| 228 typedef __uint_least16_t uint_least16_t; | |
| 229 typedef __int_least16_t int_fast16_t; | |
| 230 typedef __uint_least16_t uint_fast16_t; | |
| 231 #endif /* __int_least16_t */ | |
| 232 | |
| 233 | |
| 234 #ifdef __INT8_TYPE__ | |
| 235 #ifndef __int8_t_defined /* glibc sys/types.h also defines int8_t*/ | |
| 236 typedef signed __INT8_TYPE__ int8_t; | |
| 237 #endif /* __int8_t_defined */ | |
| 238 typedef unsigned __INT8_TYPE__ uint8_t; | |
| 239 # define __int_least8_t int8_t | |
| 240 # define __uint_least8_t uint8_t | |
| 241 #endif /* __INT8_TYPE__ */ | |
| 242 | |
| 243 #ifdef __int_least8_t | |
| 244 typedef __int_least8_t int_least8_t; | |
| 245 typedef __uint_least8_t uint_least8_t; | |
| 246 typedef __int_least8_t int_fast8_t; | |
| 247 typedef __uint_least8_t uint_fast8_t; | |
| 248 #endif /* __int_least8_t */ | |
| 249 | |
| 250 /* prevent glibc sys/types.h from defining conflicting types */ | |
| 251 #ifndef __int8_t_defined | |
| 252 # define __int8_t_defined | |
| 253 #endif /* __int8_t_defined */ | |
| 254 | |
| 255 /* C99 7.18.1.4 Integer types capable of holding object pointers. | |
| 256 */ | |
| 257 #define __stdint_join3(a,b,c) a ## b ## c | |
| 258 | |
| 259 #define __intn_t(n) __stdint_join3( int, n, _t) | |
| 260 #define __uintn_t(n) __stdint_join3(uint, n, _t) | |
| 261 | |
| 262 #ifndef _INTPTR_T | |
| 263 #ifndef __intptr_t_defined | |
| 264 typedef __intn_t(__INTPTR_WIDTH__) intptr_t; | |
| 265 #define __intptr_t_defined | |
| 266 #define _INTPTR_T | |
| 267 #endif | |
| 268 #endif | |
| 269 | |
| 270 #ifndef _UINTPTR_T | |
| 271 typedef __uintn_t(__INTPTR_WIDTH__) uintptr_t; | |
| 272 #define _UINTPTR_T | |
| 273 #endif | |
| 274 | |
| 275 /* C99 7.18.1.5 Greatest-width integer types. | |
| 276 */ | |
| 277 typedef __INTMAX_TYPE__ intmax_t; | |
| 278 typedef __UINTMAX_TYPE__ uintmax_t; | |
| 279 | |
| 280 /* C99 7.18.4 Macros for minimum-width integer constants. | |
| 281 * | |
| 282 * The standard requires that integer constant macros be defined for all the | |
| 283 * minimum-width types defined above. As 8-, 16-, 32-, and 64-bit minimum-width | |
| 284 * types are required, the corresponding integer constant macros are defined | |
| 285 * here. This implementation also defines minimum-width types for every other | |
| 286 * integer width that the target implements, so corresponding macros are | |
| 287 * defined below, too. | |
| 288 * | |
| 289 * These macros are defined using the same successive-shrinking approach as | |
| 290 * the type definitions above. It is likewise important that macros are defined | |
| 291 * in order of decending width. | |
| 292 * | |
| 293 * Note that C++ should not check __STDC_CONSTANT_MACROS here, contrary to the | |
| 294 * claims of the C standard (see C++ 18.3.1p2, [cstdint.syn]). | |
| 295 */ | |
| 296 | |
| 297 #define __int_c_join(a, b) a ## b | |
| 298 #define __int_c(v, suffix) __int_c_join(v, suffix) | |
| 299 #define __uint_c(v, suffix) __int_c_join(v##U, suffix) | |
| 300 | |
| 301 | |
| 302 #ifdef __INT64_TYPE__ | |
| 303 # ifdef __INT64_C_SUFFIX__ | |
| 304 # define __int64_c_suffix __INT64_C_SUFFIX__ | |
| 305 # define __int32_c_suffix __INT64_C_SUFFIX__ | |
| 306 # define __int16_c_suffix __INT64_C_SUFFIX__ | |
| 307 # define __int8_c_suffix __INT64_C_SUFFIX__ | |
| 308 # else | |
| 309 # undef __int64_c_suffix | |
| 310 # undef __int32_c_suffix | |
| 311 # undef __int16_c_suffix | |
| 312 # undef __int8_c_suffix | |
| 313 # endif /* __INT64_C_SUFFIX__ */ | |
| 314 #endif /* __INT64_TYPE__ */ | |
| 315 | |
| 316 #ifdef __int_least64_t | |
| 317 # ifdef __int64_c_suffix | |
| 318 # define INT64_C(v) __int_c(v, __int64_c_suffix) | |
| 319 # define UINT64_C(v) __uint_c(v, __int64_c_suffix) | |
| 320 # else | |
| 321 # define INT64_C(v) v | |
| 322 # define UINT64_C(v) v ## U | |
| 323 # endif /* __int64_c_suffix */ | |
| 324 #endif /* __int_least64_t */ | |
| 325 | |
| 326 | |
| 327 #ifdef __INT56_TYPE__ | |
| 328 # ifdef __INT56_C_SUFFIX__ | |
| 329 # define INT56_C(v) __int_c(v, __INT56_C_SUFFIX__) | |
| 330 # define UINT56_C(v) __uint_c(v, __INT56_C_SUFFIX__) | |
| 331 # define __int32_c_suffix __INT56_C_SUFFIX__ | |
| 332 # define __int16_c_suffix __INT56_C_SUFFIX__ | |
| 333 # define __int8_c_suffix __INT56_C_SUFFIX__ | |
| 334 # else | |
| 335 # define INT56_C(v) v | |
| 336 # define UINT56_C(v) v ## U | |
| 337 # undef __int32_c_suffix | |
| 338 # undef __int16_c_suffix | |
| 339 # undef __int8_c_suffix | |
| 340 # endif /* __INT56_C_SUFFIX__ */ | |
| 341 #endif /* __INT56_TYPE__ */ | |
| 342 | |
| 343 | |
| 344 #ifdef __INT48_TYPE__ | |
| 345 # ifdef __INT48_C_SUFFIX__ | |
| 346 # define INT48_C(v) __int_c(v, __INT48_C_SUFFIX__) | |
| 347 # define UINT48_C(v) __uint_c(v, __INT48_C_SUFFIX__) | |
| 348 # define __int32_c_suffix __INT48_C_SUFFIX__ | |
| 349 # define __int16_c_suffix __INT48_C_SUFFIX__ | |
| 350 # define __int8_c_suffix __INT48_C_SUFFIX__ | |
| 351 # else | |
| 352 # define INT48_C(v) v | |
| 353 # define UINT48_C(v) v ## U | |
| 354 # undef __int32_c_suffix | |
| 355 # undef __int16_c_suffix | |
| 356 # undef __int8_c_suffix | |
| 357 # endif /* __INT48_C_SUFFIX__ */ | |
| 358 #endif /* __INT48_TYPE__ */ | |
| 359 | |
| 360 | |
| 361 #ifdef __INT40_TYPE__ | |
| 362 # ifdef __INT40_C_SUFFIX__ | |
| 363 # define INT40_C(v) __int_c(v, __INT40_C_SUFFIX__) | |
| 364 # define UINT40_C(v) __uint_c(v, __INT40_C_SUFFIX__) | |
| 365 # define __int32_c_suffix __INT40_C_SUFFIX__ | |
| 366 # define __int16_c_suffix __INT40_C_SUFFIX__ | |
| 367 # define __int8_c_suffix __INT40_C_SUFFIX__ | |
| 368 # else | |
| 369 # define INT40_C(v) v | |
| 370 # define UINT40_C(v) v ## U | |
| 371 # undef __int32_c_suffix | |
| 372 # undef __int16_c_suffix | |
| 373 # undef __int8_c_suffix | |
| 374 # endif /* __INT40_C_SUFFIX__ */ | |
| 375 #endif /* __INT40_TYPE__ */ | |
| 376 | |
| 377 | |
| 378 #ifdef __INT32_TYPE__ | |
| 379 # ifdef __INT32_C_SUFFIX__ | |
| 380 # define __int32_c_suffix __INT32_C_SUFFIX__ | |
| 381 # define __int16_c_suffix __INT32_C_SUFFIX__ | |
| 382 # define __int8_c_suffix __INT32_C_SUFFIX__ | |
| 383 #else | |
| 384 # undef __int32_c_suffix | |
| 385 # undef __int16_c_suffix | |
| 386 # undef __int8_c_suffix | |
| 387 # endif /* __INT32_C_SUFFIX__ */ | |
| 388 #endif /* __INT32_TYPE__ */ | |
| 389 | |
| 390 #ifdef __int_least32_t | |
| 391 # ifdef __int32_c_suffix | |
| 392 # define INT32_C(v) __int_c(v, __int32_c_suffix) | |
| 393 # define UINT32_C(v) __uint_c(v, __int32_c_suffix) | |
| 394 # else | |
| 395 # define INT32_C(v) v | |
| 396 # define UINT32_C(v) v ## U | |
| 397 # endif /* __int32_c_suffix */ | |
| 398 #endif /* __int_least32_t */ | |
| 399 | |
| 400 | |
| 401 #ifdef __INT24_TYPE__ | |
| 402 # ifdef __INT24_C_SUFFIX__ | |
| 403 # define INT24_C(v) __int_c(v, __INT24_C_SUFFIX__) | |
| 404 # define UINT24_C(v) __uint_c(v, __INT24_C_SUFFIX__) | |
| 405 # define __int16_c_suffix __INT24_C_SUFFIX__ | |
| 406 # define __int8_c_suffix __INT24_C_SUFFIX__ | |
| 407 # else | |
| 408 # define INT24_C(v) v | |
| 409 # define UINT24_C(v) v ## U | |
| 410 # undef __int16_c_suffix | |
| 411 # undef __int8_c_suffix | |
| 412 # endif /* __INT24_C_SUFFIX__ */ | |
| 413 #endif /* __INT24_TYPE__ */ | |
| 414 | |
| 415 | |
| 416 #ifdef __INT16_TYPE__ | |
| 417 # ifdef __INT16_C_SUFFIX__ | |
| 418 # define __int16_c_suffix __INT16_C_SUFFIX__ | |
| 419 # define __int8_c_suffix __INT16_C_SUFFIX__ | |
| 420 #else | |
| 421 # undef __int16_c_suffix | |
| 422 # undef __int8_c_suffix | |
| 423 # endif /* __INT16_C_SUFFIX__ */ | |
| 424 #endif /* __INT16_TYPE__ */ | |
| 425 | |
| 426 #ifdef __int_least16_t | |
| 427 # ifdef __int16_c_suffix | |
| 428 # define INT16_C(v) __int_c(v, __int16_c_suffix) | |
| 429 # define UINT16_C(v) __uint_c(v, __int16_c_suffix) | |
| 430 # else | |
| 431 # define INT16_C(v) v | |
| 432 # define UINT16_C(v) v ## U | |
| 433 # endif /* __int16_c_suffix */ | |
| 434 #endif /* __int_least16_t */ | |
| 435 | |
| 436 | |
| 437 #ifdef __INT8_TYPE__ | |
| 438 # ifdef __INT8_C_SUFFIX__ | |
| 439 # define __int8_c_suffix __INT8_C_SUFFIX__ | |
| 440 #else | |
| 441 # undef __int8_c_suffix | |
| 442 # endif /* __INT8_C_SUFFIX__ */ | |
| 443 #endif /* __INT8_TYPE__ */ | |
| 444 | |
| 445 #ifdef __int_least8_t | |
| 446 # ifdef __int8_c_suffix | |
| 447 # define INT8_C(v) __int_c(v, __int8_c_suffix) | |
| 448 # define UINT8_C(v) __uint_c(v, __int8_c_suffix) | |
| 449 # else | |
| 450 # define INT8_C(v) v | |
| 451 # define UINT8_C(v) v ## U | |
| 452 # endif /* __int8_c_suffix */ | |
| 453 #endif /* __int_least8_t */ | |
| 454 | |
| 455 | |
| 456 /* C99 7.18.2.1 Limits of exact-width integer types. | |
| 457 * C99 7.18.2.2 Limits of minimum-width integer types. | |
| 458 * C99 7.18.2.3 Limits of fastest minimum-width integer types. | |
| 459 * | |
| 460 * The presence of limit macros are completely optional in C99. This | |
| 461 * implementation defines limits for all of the types (exact- and | |
| 462 * minimum-width) that it defines above, using the limits of the minimum-width | |
| 463 * type for any types that do not have exact-width representations. | |
| 464 * | |
| 465 * As in the type definitions, this section takes an approach of | |
| 466 * successive-shrinking to determine which limits to use for the standard (8, | |
| 467 * 16, 32, 64) bit widths when they don't have exact representations. It is | |
| 468 * therefore important that the defintions be kept in order of decending | |
| 469 * widths. | |
| 470 * | |
| 471 * Note that C++ should not check __STDC_LIMIT_MACROS here, contrary to the | |
| 472 * claims of the C standard (see C++ 18.3.1p2, [cstdint.syn]). | |
| 473 */ | |
| 474 | |
| 475 #ifdef __INT64_TYPE__ | |
| 476 # define INT64_MAX INT64_C( 9223372036854775807) | |
| 477 # define INT64_MIN (-INT64_C( 9223372036854775807)-1) | |
| 478 # define UINT64_MAX UINT64_C(18446744073709551615) | |
| 479 # define __INT_LEAST64_MIN INT64_MIN | |
| 480 # define __INT_LEAST64_MAX INT64_MAX | |
| 481 # define __UINT_LEAST64_MAX UINT64_MAX | |
| 482 # define __INT_LEAST32_MIN INT64_MIN | |
| 483 # define __INT_LEAST32_MAX INT64_MAX | |
| 484 # define __UINT_LEAST32_MAX UINT64_MAX | |
| 485 # define __INT_LEAST16_MIN INT64_MIN | |
| 486 # define __INT_LEAST16_MAX INT64_MAX | |
| 487 # define __UINT_LEAST16_MAX UINT64_MAX | |
| 488 # define __INT_LEAST8_MIN INT64_MIN | |
| 489 # define __INT_LEAST8_MAX INT64_MAX | |
| 490 # define __UINT_LEAST8_MAX UINT64_MAX | |
| 491 #endif /* __INT64_TYPE__ */ | |
| 492 | |
| 493 #ifdef __INT_LEAST64_MIN | |
| 494 # define INT_LEAST64_MIN __INT_LEAST64_MIN | |
| 495 # define INT_LEAST64_MAX __INT_LEAST64_MAX | |
| 496 # define UINT_LEAST64_MAX __UINT_LEAST64_MAX | |
| 497 # define INT_FAST64_MIN __INT_LEAST64_MIN | |
| 498 # define INT_FAST64_MAX __INT_LEAST64_MAX | |
| 499 # define UINT_FAST64_MAX __UINT_LEAST64_MAX | |
| 500 #endif /* __INT_LEAST64_MIN */ | |
| 501 | |
| 502 | |
| 503 #ifdef __INT56_TYPE__ | |
| 504 # define INT56_MAX INT56_C(36028797018963967) | |
| 505 # define INT56_MIN (-INT56_C(36028797018963967)-1) | |
| 506 # define UINT56_MAX UINT56_C(72057594037927935) | |
| 507 # define INT_LEAST56_MIN INT56_MIN | |
| 508 # define INT_LEAST56_MAX INT56_MAX | |
| 509 # define UINT_LEAST56_MAX UINT56_MAX | |
| 510 # define INT_FAST56_MIN INT56_MIN | |
| 511 # define INT_FAST56_MAX INT56_MAX | |
| 512 # define UINT_FAST56_MAX UINT56_MAX | |
| 513 # define __INT_LEAST32_MIN INT56_MIN | |
| 514 # define __INT_LEAST32_MAX INT56_MAX | |
| 515 # define __UINT_LEAST32_MAX UINT56_MAX | |
| 516 # define __INT_LEAST16_MIN INT56_MIN | |
| 517 # define __INT_LEAST16_MAX INT56_MAX | |
| 518 # define __UINT_LEAST16_MAX UINT56_MAX | |
| 519 # define __INT_LEAST8_MIN INT56_MIN | |
| 520 # define __INT_LEAST8_MAX INT56_MAX | |
| 521 # define __UINT_LEAST8_MAX UINT56_MAX | |
| 522 #endif /* __INT56_TYPE__ */ | |
| 523 | |
| 524 | |
| 525 #ifdef __INT48_TYPE__ | |
| 526 # define INT48_MAX INT48_C(140737488355327) | |
| 527 # define INT48_MIN (-INT48_C(140737488355327)-1) | |
| 528 # define UINT48_MAX UINT48_C(281474976710655) | |
| 529 # define INT_LEAST48_MIN INT48_MIN | |
| 530 # define INT_LEAST48_MAX INT48_MAX | |
| 531 # define UINT_LEAST48_MAX UINT48_MAX | |
| 532 # define INT_FAST48_MIN INT48_MIN | |
| 533 # define INT_FAST48_MAX INT48_MAX | |
| 534 # define UINT_FAST48_MAX UINT48_MAX | |
| 535 # define __INT_LEAST32_MIN INT48_MIN | |
| 536 # define __INT_LEAST32_MAX INT48_MAX | |
| 537 # define __UINT_LEAST32_MAX UINT48_MAX | |
| 538 # define __INT_LEAST16_MIN INT48_MIN | |
| 539 # define __INT_LEAST16_MAX INT48_MAX | |
| 540 # define __UINT_LEAST16_MAX UINT48_MAX | |
| 541 # define __INT_LEAST8_MIN INT48_MIN | |
| 542 # define __INT_LEAST8_MAX INT48_MAX | |
| 543 # define __UINT_LEAST8_MAX UINT48_MAX | |
| 544 #endif /* __INT48_TYPE__ */ | |
| 545 | |
| 546 | |
| 547 #ifdef __INT40_TYPE__ | |
| 548 # define INT40_MAX INT40_C(549755813887) | |
| 549 # define INT40_MIN (-INT40_C(549755813887)-1) | |
| 550 # define UINT40_MAX UINT40_C(1099511627775) | |
| 551 # define INT_LEAST40_MIN INT40_MIN | |
| 552 # define INT_LEAST40_MAX INT40_MAX | |
| 553 # define UINT_LEAST40_MAX UINT40_MAX | |
| 554 # define INT_FAST40_MIN INT40_MIN | |
| 555 # define INT_FAST40_MAX INT40_MAX | |
| 556 # define UINT_FAST40_MAX UINT40_MAX | |
| 557 # define __INT_LEAST32_MIN INT40_MIN | |
| 558 # define __INT_LEAST32_MAX INT40_MAX | |
| 559 # define __UINT_LEAST32_MAX UINT40_MAX | |
| 560 # define __INT_LEAST16_MIN INT40_MIN | |
| 561 # define __INT_LEAST16_MAX INT40_MAX | |
| 562 # define __UINT_LEAST16_MAX UINT40_MAX | |
| 563 # define __INT_LEAST8_MIN INT40_MIN | |
| 564 # define __INT_LEAST8_MAX INT40_MAX | |
| 565 # define __UINT_LEAST8_MAX UINT40_MAX | |
| 566 #endif /* __INT40_TYPE__ */ | |
| 567 | |
| 568 | |
| 569 #ifdef __INT32_TYPE__ | |
| 570 # define INT32_MAX INT32_C(2147483647) | |
| 571 # define INT32_MIN (-INT32_C(2147483647)-1) | |
| 572 # define UINT32_MAX UINT32_C(4294967295) | |
| 573 # define __INT_LEAST32_MIN INT32_MIN | |
| 574 # define __INT_LEAST32_MAX INT32_MAX | |
| 575 # define __UINT_LEAST32_MAX UINT32_MAX | |
| 576 # define __INT_LEAST16_MIN INT32_MIN | |
| 577 # define __INT_LEAST16_MAX INT32_MAX | |
| 578 # define __UINT_LEAST16_MAX UINT32_MAX | |
| 579 # define __INT_LEAST8_MIN INT32_MIN | |
| 580 # define __INT_LEAST8_MAX INT32_MAX | |
| 581 # define __UINT_LEAST8_MAX UINT32_MAX | |
| 582 #endif /* __INT32_TYPE__ */ | |
| 583 | |
| 584 #ifdef __INT_LEAST32_MIN | |
| 585 # define INT_LEAST32_MIN __INT_LEAST32_MIN | |
| 586 # define INT_LEAST32_MAX __INT_LEAST32_MAX | |
| 587 # define UINT_LEAST32_MAX __UINT_LEAST32_MAX | |
| 588 # define INT_FAST32_MIN __INT_LEAST32_MIN | |
| 589 # define INT_FAST32_MAX __INT_LEAST32_MAX | |
| 590 # define UINT_FAST32_MAX __UINT_LEAST32_MAX | |
| 591 #endif /* __INT_LEAST32_MIN */ | |
| 592 | |
| 593 | |
| 594 #ifdef __INT24_TYPE__ | |
| 595 # define INT24_MAX INT24_C(8388607) | |
| 596 # define INT24_MIN (-INT24_C(8388607)-1) | |
| 597 # define UINT24_MAX UINT24_C(16777215) | |
| 598 # define INT_LEAST24_MIN INT24_MIN | |
| 599 # define INT_LEAST24_MAX INT24_MAX | |
| 600 # define UINT_LEAST24_MAX UINT24_MAX | |
| 601 # define INT_FAST24_MIN INT24_MIN | |
| 602 # define INT_FAST24_MAX INT24_MAX | |
| 603 # define UINT_FAST24_MAX UINT24_MAX | |
| 604 # define __INT_LEAST16_MIN INT24_MIN | |
| 605 # define __INT_LEAST16_MAX INT24_MAX | |
| 606 # define __UINT_LEAST16_MAX UINT24_MAX | |
| 607 # define __INT_LEAST8_MIN INT24_MIN | |
| 608 # define __INT_LEAST8_MAX INT24_MAX | |
| 609 # define __UINT_LEAST8_MAX UINT24_MAX | |
| 610 #endif /* __INT24_TYPE__ */ | |
| 611 | |
| 612 | |
| 613 #ifdef __INT16_TYPE__ | |
| 614 #define INT16_MAX INT16_C(32767) | |
| 615 #define INT16_MIN (-INT16_C(32767)-1) | |
| 616 #define UINT16_MAX UINT16_C(65535) | |
| 617 # define __INT_LEAST16_MIN INT16_MIN | |
| 618 # define __INT_LEAST16_MAX INT16_MAX | |
| 619 # define __UINT_LEAST16_MAX UINT16_MAX | |
| 620 # define __INT_LEAST8_MIN INT16_MIN | |
| 621 # define __INT_LEAST8_MAX INT16_MAX | |
| 622 # define __UINT_LEAST8_MAX UINT16_MAX | |
| 623 #endif /* __INT16_TYPE__ */ | |
| 624 | |
| 625 #ifdef __INT_LEAST16_MIN | |
| 626 # define INT_LEAST16_MIN __INT_LEAST16_MIN | |
| 627 # define INT_LEAST16_MAX __INT_LEAST16_MAX | |
| 628 # define UINT_LEAST16_MAX __UINT_LEAST16_MAX | |
| 629 # define INT_FAST16_MIN __INT_LEAST16_MIN | |
| 630 # define INT_FAST16_MAX __INT_LEAST16_MAX | |
| 631 # define UINT_FAST16_MAX __UINT_LEAST16_MAX | |
| 632 #endif /* __INT_LEAST16_MIN */ | |
| 633 | |
| 634 | |
| 635 #ifdef __INT8_TYPE__ | |
| 636 # define INT8_MAX INT8_C(127) | |
| 637 # define INT8_MIN (-INT8_C(127)-1) | |
| 638 # define UINT8_MAX UINT8_C(255) | |
| 639 # define __INT_LEAST8_MIN INT8_MIN | |
| 640 # define __INT_LEAST8_MAX INT8_MAX | |
| 641 # define __UINT_LEAST8_MAX UINT8_MAX | |
| 642 #endif /* __INT8_TYPE__ */ | |
| 643 | |
| 644 #ifdef __INT_LEAST8_MIN | |
| 645 # define INT_LEAST8_MIN __INT_LEAST8_MIN | |
| 646 # define INT_LEAST8_MAX __INT_LEAST8_MAX | |
| 647 # define UINT_LEAST8_MAX __UINT_LEAST8_MAX | |
| 648 # define INT_FAST8_MIN __INT_LEAST8_MIN | |
| 649 # define INT_FAST8_MAX __INT_LEAST8_MAX | |
| 650 # define UINT_FAST8_MAX __UINT_LEAST8_MAX | |
| 651 #endif /* __INT_LEAST8_MIN */ | |
| 652 | |
| 653 /* Some utility macros */ | |
| 654 #define __INTN_MIN(n) __stdint_join3( INT, n, _MIN) | |
| 655 #define __INTN_MAX(n) __stdint_join3( INT, n, _MAX) | |
| 656 #define __UINTN_MAX(n) __stdint_join3(UINT, n, _MAX) | |
| 657 #define __INTN_C(n, v) __stdint_join3( INT, n, _C(v)) | |
| 658 #define __UINTN_C(n, v) __stdint_join3(UINT, n, _C(v)) | |
| 659 | |
| 660 /* C99 7.18.2.4 Limits of integer types capable of holding object pointers. */ | |
| 661 /* C99 7.18.3 Limits of other integer types. */ | |
| 662 | |
| 663 #define INTPTR_MIN __INTN_MIN(__INTPTR_WIDTH__) | |
| 664 #define INTPTR_MAX __INTN_MAX(__INTPTR_WIDTH__) | |
| 665 #define UINTPTR_MAX __UINTN_MAX(__INTPTR_WIDTH__) | |
| 666 #define PTRDIFF_MIN __INTN_MIN(__PTRDIFF_WIDTH__) | |
| 667 #define PTRDIFF_MAX __INTN_MAX(__PTRDIFF_WIDTH__) | |
| 668 #define SIZE_MAX __UINTN_MAX(__SIZE_WIDTH__) | |
| 669 | |
| 670 /* ISO9899:2011 7.20 (C11 Annex K): Define RSIZE_MAX if __STDC_WANT_LIB_EXT1__ | |
| 671 * is enabled. */ | |
| 672 #if defined(__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__ >= 1 | |
| 673 #define RSIZE_MAX (SIZE_MAX >> 1) | |
| 674 #endif | |
| 675 | |
| 676 /* C99 7.18.2.5 Limits of greatest-width integer types. */ | |
| 677 #define INTMAX_MIN __INTN_MIN(__INTMAX_WIDTH__) | |
| 678 #define INTMAX_MAX __INTN_MAX(__INTMAX_WIDTH__) | |
| 679 #define UINTMAX_MAX __UINTN_MAX(__INTMAX_WIDTH__) | |
| 680 | |
| 681 /* C99 7.18.3 Limits of other integer types. */ | |
| 682 #define SIG_ATOMIC_MIN __INTN_MIN(__SIG_ATOMIC_WIDTH__) | |
| 683 #define SIG_ATOMIC_MAX __INTN_MAX(__SIG_ATOMIC_WIDTH__) | |
| 684 #ifdef __WINT_UNSIGNED__ | |
| 685 # define WINT_MIN __UINTN_C(__WINT_WIDTH__, 0) | |
| 686 # define WINT_MAX __UINTN_MAX(__WINT_WIDTH__) | |
| 687 #else | |
| 688 # define WINT_MIN __INTN_MIN(__WINT_WIDTH__) | |
| 689 # define WINT_MAX __INTN_MAX(__WINT_WIDTH__) | |
| 690 #endif | |
| 691 | |
| 692 #ifndef WCHAR_MAX | |
| 693 # define WCHAR_MAX __WCHAR_MAX__ | |
| 694 #endif | |
| 695 #ifndef WCHAR_MIN | |
| 696 # if __WCHAR_MAX__ == __INTN_MAX(__WCHAR_WIDTH__) | |
| 697 # define WCHAR_MIN __INTN_MIN(__WCHAR_WIDTH__) | |
| 698 # else | |
| 699 # define WCHAR_MIN __UINTN_C(__WCHAR_WIDTH__, 0) | |
| 700 # endif | |
| 701 #endif | |
| 702 | |
| 703 /* 7.18.4.2 Macros for greatest-width integer constants. */ | |
| 704 #define INTMAX_C(v) __INTN_C(__INTMAX_WIDTH__, v) | |
| 705 #define UINTMAX_C(v) __UINTN_C(__INTMAX_WIDTH__, v) | |
| 706 | |
| 707 #endif /* __STDC_HOSTED__ */ | |
| 708 #endif /* __CLANG_STDINT_H */ | |
| OLD | NEW |