stdint.h revision 198954
1193326Sed/*===---- stdint.h - Standard header for sized integer types --------------===*\ 2193326Sed * 3193326Sed * Copyright (c) 2009 Chris Lattner 4193326Sed * 5193326Sed * Permission is hereby granted, free of charge, to any person obtaining a copy 6193326Sed * of this software and associated documentation files (the "Software"), to deal 7193326Sed * in the Software without restriction, including without limitation the rights 8193326Sed * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9193326Sed * copies of the Software, and to permit persons to whom the Software is 10193326Sed * furnished to do so, subject to the following conditions: 11193326Sed * 12193326Sed * The above copyright notice and this permission notice shall be included in 13193326Sed * all copies or substantial portions of the Software. 14193326Sed * 15193326Sed * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16193326Sed * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17193326Sed * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18193326Sed * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19193326Sed * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20193326Sed * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21193326Sed * THE SOFTWARE. 22193326Sed * 23193326Sed\*===----------------------------------------------------------------------===*/ 24193326Sed 25193326Sed#ifndef __CLANG_STDINT_H 26193326Sed#define __CLANG_STDINT_H 27193326Sed 28193326Sed/* If we're hosted, fall back to the system's stdint.h, which might have 29193326Sed * additional definitions. 30193326Sed */ 31198893Srdivacky#if __STDC_HOSTED__ && \ 32198893Srdivacky defined(__has_include_next) && __has_include_next(<stdint.h>) 33193326Sed# include_next <stdint.h> 34193326Sed#else 35193326Sed 36193326Sed/* We currently only support targets with power of two, 2s complement integers. 37193326Sed */ 38193326Sed 39193326Sed/* C99 7.18.1.1 Exact-width integer types. 40193326Sed * C99 7.18.1.2 Minimum-width integer types. 41193326Sed * C99 7.18.1.3 Fastest minimum-width integer types. 42193326Sed * Since we only support pow-2 targets, these map directly to exact width types. 43193326Sed */ 44193326Sed 45198954Srdivacky/* Some 16-bit targets do not have a 64-bit datatype. Only define the 64-bit 46198954Srdivacky * typedefs if there is something to typedef them to. 47198954Srdivacky */ 48198954Srdivacky#ifdef __INT64_TYPE__ 49193326Sed#ifndef __int8_t_defined /* glibc does weird things with sys/types.h */ 50193326Sedtypedef __INT64_TYPE__ int64_t; 51193326Sed#endif 52198954Srdivackytypedef unsigned __INT64_TYPE__ uint64_t; 53198954Srdivackytypedef int64_t int_least64_t; 54198954Srdivackytypedef uint64_t uint_least64_t; 55198954Srdivackytypedef int64_t int_fast64_t; 56198954Srdivackytypedef uint64_t uint_fast64_t; 57193326Sed#endif 58193326Sed 59198954Srdivacky#ifndef __int8_t_defined /* glibc does weird things with sys/types.h */ 60198954Srdivackytypedef __INT32_TYPE__ int32_t; 61198954Srdivacky#endif 62193326Sed#ifndef __uint32_t_defined /* more glibc compatibility */ 63193326Sed#define __uint32_t_defined 64193326Sedtypedef unsigned __INT32_TYPE__ uint32_t; 65193326Sed#endif 66193326Sedtypedef int32_t int_least32_t; 67193326Sedtypedef uint32_t uint_least32_t; 68193326Sedtypedef int32_t int_fast32_t; 69193326Sedtypedef uint32_t uint_fast32_t; 70193326Sed 71198954Srdivacky 72198954Srdivacky#ifndef __int8_t_defined /* glibc does weird things with sys/types.h */ 73198954Srdivackytypedef __INT16_TYPE__ int16_t; 74193326Sed#endif 75198954Srdivackytypedef unsigned __INT16_TYPE__ uint16_t; 76198954Srdivackytypedef int16_t int_least16_t; 77198954Srdivackytypedef uint16_t uint_least16_t; 78198954Srdivackytypedef int16_t int_fast16_t; 79198954Srdivackytypedef uint16_t uint_fast16_t; 80193326Sed 81193326Sed 82198954Srdivacky#ifndef __int8_t_defined /* glibc does weird things with sys/types.h */ 83198954Srdivackytypedef signed __INT8_TYPE__ int8_t; 84198954Srdivacky#endif 85198954Srdivackytypedef unsigned __INT8_TYPE__ uint8_t; 86198954Srdivackytypedef int8_t int_least8_t; 87198954Srdivackytypedef uint8_t uint_least8_t; 88198954Srdivackytypedef int8_t int_fast8_t; 89198954Srdivackytypedef uint8_t uint_fast8_t; 90198954Srdivacky 91198954Srdivacky/* prevent glibc sys/types.h from defining conflicting types */ 92198954Srdivacky#ifndef __int8_t_defined 93198954Srdivacky# define __int8_t_defined 94198954Srdivacky#endif /* __int8_t_defined */ 95198954Srdivacky 96193326Sed/* C99 7.18.1.4 Integer types capable of holding object pointers. 97193326Sed */ 98193326Sed#ifndef __intptr_t_defined 99193326Sedtypedef __INTPTR_TYPE__ intptr_t; 100193326Sed#define __intptr_t_defined 101193326Sed#endif 102193326Sedtypedef unsigned __INTPTR_TYPE__ uintptr_t; 103193326Sed 104193326Sed/* C99 7.18.1.5 Greatest-width integer types. 105193326Sed */ 106193326Sedtypedef __INTMAX_TYPE__ intmax_t; 107193326Sedtypedef __UINTMAX_TYPE__ uintmax_t; 108193326Sed 109198954Srdivacky/* C99 7.18.4 Macros for minimum-width integer constants. 110198954Srdivacky * 111198954Srdivacky * Note that C++ should not check __STDC_CONSTANT_MACROS here, contrary to the 112198954Srdivacky * claims of the C standard (see C++ 18.3.1p2, [cstdint.syn]). 113198954Srdivacky */ 114198954Srdivacky 115198954Srdivacky/* Only define the 64-bit size macros if we have 64-bit support. */ 116198954Srdivacky#ifdef __INT64_TYPE__ 117198954Srdivacky#define INT64_C(v) (v##LL) 118198954Srdivacky#define UINT64_C(v) (v##ULL) 119198954Srdivacky#endif 120198954Srdivacky 121198954Srdivacky#define INT32_C(v) (v) 122198954Srdivacky#define UINT32_C(v) (v##U) 123198954Srdivacky#define INT16_C(v) (v) 124198954Srdivacky#define UINT16_C(v) (v##U) 125198954Srdivacky#define INT8_C(v) (v) 126198954Srdivacky#define UINT8_C(v) (v##U) 127198954Srdivacky 128193326Sed/* C99 7.18.2.1 Limits of exact-width integer types. 129193326Sed * Fixed sized values have fixed size max/min. 130193326Sed * C99 7.18.2.2 Limits of minimum-width integer types. 131193326Sed * Since we map these directly onto fixed-sized types, these values the same. 132193326Sed * C99 7.18.2.3 Limits of fastest minimum-width integer types. 133193326Sed * 134193326Sed * Note that C++ should not check __STDC_LIMIT_MACROS here, contrary to the 135193326Sed * claims of the C standard (see C++ 18.3.1p2, [cstdint.syn]). 136193326Sed */ 137193326Sed 138193326Sed/* If we do not have 64-bit support, don't define the 64-bit size macros. */ 139193326Sed#ifdef __INT64_TYPE__ 140193326Sed#define INT64_MAX 9223372036854775807LL 141193326Sed#define INT64_MIN (-9223372036854775807LL-1) 142193326Sed#define UINT64_MAX 18446744073709551615ULL 143193326Sed#define INT_LEAST64_MIN INT64_MIN 144193326Sed#define INT_LEAST64_MAX INT64_MAX 145193326Sed#define UINT_LEAST64_MAX UINT64_MAX 146193326Sed#define INT_FAST64_MIN INT64_MIN 147193326Sed#define INT_FAST64_MAX INT64_MAX 148193326Sed#define UINT_FAST64_MAX UINT64_MAX 149193326Sed#endif 150193326Sed 151198954Srdivacky#define INT32_MAX 2147483647 152198954Srdivacky#define INT32_MIN (-2147483647-1) 153198954Srdivacky#define UINT32_MAX 4294967295U 154198954Srdivacky#define INT_LEAST32_MIN INT32_MIN 155198954Srdivacky#define INT_LEAST32_MAX INT32_MAX 156198954Srdivacky#define UINT_LEAST32_MAX UINT32_MAX 157198954Srdivacky#define INT_FAST32_MIN INT32_MIN 158198954Srdivacky#define INT_FAST32_MAX INT32_MAX 159198954Srdivacky#define UINT_FAST32_MAX UINT32_MAX 160198954Srdivacky 161198954Srdivacky#define INT16_MAX 32767 162198954Srdivacky#define INT16_MIN (-32768) 163198954Srdivacky#define UINT16_MAX 65535 164198954Srdivacky#define INT_LEAST16_MIN INT16_MIN 165198954Srdivacky#define INT_LEAST16_MAX INT16_MAX 166198954Srdivacky#define UINT_LEAST16_MAX UINT16_MAX 167198954Srdivacky#define INT_FAST16_MIN INT16_MIN 168198954Srdivacky#define INT_FAST16_MAX INT16_MAX 169198954Srdivacky#define UINT_FAST16_MAX UINT16_MAX 170198954Srdivacky 171198954Srdivacky#define INT8_MAX 127 172198954Srdivacky#define INT8_MIN (-128) 173198954Srdivacky#define UINT8_MAX 255 174198954Srdivacky#define INT_LEAST8_MIN INT8_MIN 175198954Srdivacky#define INT_LEAST8_MAX INT8_MAX 176198954Srdivacky#define UINT_LEAST8_MAX UINT8_MAX 177198954Srdivacky#define INT_FAST8_MIN INT8_MIN 178198954Srdivacky#define INT_FAST8_MAX INT8_MAX 179198954Srdivacky#define UINT_FAST8_MAX UINT8_MAX 180198954Srdivacky 181193326Sed/* C99 7.18.2.4 Limits of integer types capable of holding object pointers. */ 182193326Sed/* C99 7.18.3 Limits of other integer types. */ 183193326Sed 184193326Sed#if __POINTER_WIDTH__ == 64 185193326Sed 186193326Sed#define INTPTR_MIN INT64_MIN 187193326Sed#define INTPTR_MAX INT64_MAX 188193326Sed#define UINTPTR_MAX UINT64_MAX 189193326Sed#define PTRDIFF_MIN INT64_MIN 190193326Sed#define PTRDIFF_MAX INT64_MAX 191193326Sed#define SIZE_MAX UINT64_MAX 192193326Sed 193193326Sed#elif __POINTER_WIDTH__ == 32 194193326Sed 195193326Sed#define INTPTR_MIN INT32_MIN 196193326Sed#define INTPTR_MAX INT32_MAX 197193326Sed#define UINTPTR_MAX UINT32_MAX 198193326Sed#define PTRDIFF_MIN INT32_MIN 199193326Sed#define PTRDIFF_MAX INT32_MAX 200193326Sed#define SIZE_MAX UINT32_MAX 201193326Sed 202193326Sed#elif __POINTER_WIDTH__ == 16 203193326Sed 204193326Sed#define INTPTR_MIN INT16_MIN 205193326Sed#define INTPTR_MAX INT16_MAX 206193326Sed#define UINTPTR_MAX UINT16_MAX 207193326Sed#define PTRDIFF_MIN INT16_MIN 208193326Sed#define PTRDIFF_MAX INT16_MAX 209193326Sed#define SIZE_MAX UINT16_MAX 210193326Sed 211193326Sed#else 212193326Sed#error "unknown or unset pointer width!" 213193326Sed#endif 214193326Sed 215193326Sed/* C99 7.18.2.5 Limits of greatest-width integer types. */ 216193326Sed#define INTMAX_MIN (-__INTMAX_MAX__-1) 217193326Sed#define INTMAX_MAX __INTMAX_MAX__ 218193326Sed#define UINTMAX_MAX (__INTMAX_MAX__*2ULL+1ULL) 219193326Sed 220193326Sed/* C99 7.18.3 Limits of other integer types. */ 221193326Sed#define SIG_ATOMIC_MIN INT32_MIN 222193326Sed#define SIG_ATOMIC_MAX INT32_MAX 223193326Sed#define WINT_MIN INT32_MIN 224193326Sed#define WINT_MAX INT32_MAX 225193326Sed 226193326Sed/* FIXME: if we ever support a target with unsigned wchar_t, this should be 227193326Sed * 0 .. Max. 228193326Sed */ 229193326Sed#ifndef WCHAR_MAX 230193326Sed#define WCHAR_MAX __WCHAR_MAX__ 231193326Sed#endif 232193326Sed#ifndef WCHAR_MIN 233193326Sed#define WCHAR_MIN (-__WCHAR_MAX__-1) 234193326Sed#endif 235193326Sed 236193326Sed/* 7.18.4.2 Macros for greatest-width integer constants. */ 237193326Sed#define INTMAX_C(v) (v##LL) 238193326Sed#define UINTMAX_C(v) (v##ULL) 239193326Sed 240193326Sed#endif /* __STDC_HOSTED__ */ 241193326Sed#endif /* __CLANG_STDINT_H */ 242