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Diffstat (limited to 'lib/Headers/stdint.h')
| -rw-r--r-- | lib/Headers/stdint.h | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/lib/Headers/stdint.h b/lib/Headers/stdint.h new file mode 100644 index 0000000..a7020d8 --- /dev/null +++ b/lib/Headers/stdint.h @@ -0,0 +1,232 @@ +/*===---- stdint.h - Standard header for sized integer types --------------===*\ + * + * Copyright (c) 2009 Chris Lattner + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * +\*===----------------------------------------------------------------------===*/ + +#ifndef __CLANG_STDINT_H +#define __CLANG_STDINT_H + +/* If we're hosted, fall back to the system's stdint.h, which might have + * additional definitions. + */ +#if __STDC_HOSTED__ +# include_next <stdint.h> +#else + +/* We currently only support targets with power of two, 2s complement integers. + */ + +/* C99 7.18.1.1 Exact-width integer types. + * C99 7.18.1.2 Minimum-width integer types. + * C99 7.18.1.3 Fastest minimum-width integer types. + * Since we only support pow-2 targets, these map directly to exact width types. + */ + +#ifndef __int8_t_defined /* glibc does weird things with sys/types.h */ +#define __int8_t_defined +typedef signed __INT8_TYPE__ int8_t; +typedef __INT16_TYPE__ int16_t; +typedef __INT32_TYPE__ int32_t; +#ifdef __INT64_TYPE__ +typedef __INT64_TYPE__ int64_t; +#endif +#endif + +typedef unsigned __INT8_TYPE__ uint8_t; +typedef int8_t int_least8_t; +typedef uint8_t uint_least8_t; +typedef int8_t int_fast8_t; +typedef uint8_t uint_fast8_t; + +typedef unsigned __INT16_TYPE__ uint16_t; +typedef int16_t int_least16_t; +typedef uint16_t uint_least16_t; +typedef int16_t int_fast16_t; +typedef uint16_t uint_fast16_t; + +#ifndef __uint32_t_defined /* more glibc compatibility */ +#define __uint32_t_defined +typedef unsigned __INT32_TYPE__ uint32_t; +#endif +typedef int32_t int_least32_t; +typedef uint32_t uint_least32_t; +typedef int32_t int_fast32_t; +typedef uint32_t uint_fast32_t; + +/* Some 16-bit targets do not have a 64-bit datatype. Only define the 64-bit + * typedefs if there is something to typedef them to. + */ +#ifdef __INT64_TYPE__ +typedef unsigned __INT64_TYPE__ uint64_t; +typedef int64_t int_least64_t; +typedef uint64_t uint_least64_t; +typedef int64_t int_fast64_t; +typedef uint64_t uint_fast64_t; +#endif + + +/* C99 7.18.1.4 Integer types capable of holding object pointers. + */ +#ifndef __intptr_t_defined +typedef __INTPTR_TYPE__ intptr_t; +#define __intptr_t_defined +#endif +typedef unsigned __INTPTR_TYPE__ uintptr_t; + +/* C99 7.18.1.5 Greatest-width integer types. + */ +typedef __INTMAX_TYPE__ intmax_t; +typedef __UINTMAX_TYPE__ uintmax_t; + +/* C99 7.18.2.1 Limits of exact-width integer types. + * Fixed sized values have fixed size max/min. + * C99 7.18.2.2 Limits of minimum-width integer types. + * Since we map these directly onto fixed-sized types, these values the same. + * C99 7.18.2.3 Limits of fastest minimum-width integer types. + * + * Note that C++ should not check __STDC_LIMIT_MACROS here, contrary to the + * claims of the C standard (see C++ 18.3.1p2, [cstdint.syn]). + */ + +#define INT8_MAX 127 +#define INT8_MIN (-128) +#define UINT8_MAX 255 +#define INT_LEAST8_MIN INT8_MIN +#define INT_LEAST8_MAX INT8_MAX +#define UINT_LEAST8_MAX UINT8_MAX +#define INT_FAST8_MIN INT8_MIN +#define INT_FAST8_MAX INT8_MAX +#define UINT_FAST8_MAX UINT8_MAX + +#define INT16_MAX 32767 +#define INT16_MIN (-32768) +#define UINT16_MAX 65535 +#define INT_LEAST16_MIN INT16_MIN +#define INT_LEAST16_MAX INT16_MAX +#define UINT_LEAST16_MAX UINT16_MAX +#define INT_FAST16_MIN INT16_MIN +#define INT_FAST16_MAX INT16_MAX +#define UINT_FAST16_MAX UINT16_MAX + +#define INT32_MAX 2147483647 +#define INT32_MIN (-2147483647-1) +#define UINT32_MAX 4294967295U +#define INT_LEAST32_MIN INT32_MIN +#define INT_LEAST32_MAX INT32_MAX +#define UINT_LEAST32_MAX UINT32_MAX +#define INT_FAST32_MIN INT32_MIN +#define INT_FAST32_MAX INT32_MAX +#define UINT_FAST32_MAX UINT32_MAX + +/* If we do not have 64-bit support, don't define the 64-bit size macros. */ +#ifdef __INT64_TYPE__ +#define INT64_MAX 9223372036854775807LL +#define INT64_MIN (-9223372036854775807LL-1) +#define UINT64_MAX 18446744073709551615ULL +#define INT_LEAST64_MIN INT64_MIN +#define INT_LEAST64_MAX INT64_MAX +#define UINT_LEAST64_MAX UINT64_MAX +#define INT_FAST64_MIN INT64_MIN +#define INT_FAST64_MAX INT64_MAX +#define UINT_FAST64_MAX UINT64_MAX +#endif + +/* C99 7.18.2.4 Limits of integer types capable of holding object pointers. */ +/* C99 7.18.3 Limits of other integer types. */ + +#if __POINTER_WIDTH__ == 64 + +#define INTPTR_MIN INT64_MIN +#define INTPTR_MAX INT64_MAX +#define UINTPTR_MAX UINT64_MAX +#define PTRDIFF_MIN INT64_MIN +#define PTRDIFF_MAX INT64_MAX +#define SIZE_MAX UINT64_MAX + +#elif __POINTER_WIDTH__ == 32 + +#define INTPTR_MIN INT32_MIN +#define INTPTR_MAX INT32_MAX +#define UINTPTR_MAX UINT32_MAX +#define PTRDIFF_MIN INT32_MIN +#define PTRDIFF_MAX INT32_MAX +#define SIZE_MAX UINT32_MAX + +#elif __POINTER_WIDTH__ == 16 + +#define INTPTR_MIN INT16_MIN +#define INTPTR_MAX INT16_MAX +#define UINTPTR_MAX UINT16_MAX +#define PTRDIFF_MIN INT16_MIN +#define PTRDIFF_MAX INT16_MAX +#define SIZE_MAX UINT16_MAX + +#else +#error "unknown or unset pointer width!" +#endif + +/* C99 7.18.2.5 Limits of greatest-width integer types. */ +#define INTMAX_MIN (-__INTMAX_MAX__-1) +#define INTMAX_MAX __INTMAX_MAX__ +#define UINTMAX_MAX (__INTMAX_MAX__*2ULL+1ULL) + +/* C99 7.18.3 Limits of other integer types. */ +#define SIG_ATOMIC_MIN INT32_MIN +#define SIG_ATOMIC_MAX INT32_MAX +#define WINT_MIN INT32_MIN +#define WINT_MAX INT32_MAX + +/* FIXME: if we ever support a target with unsigned wchar_t, this should be + * 0 .. Max. + */ +#ifndef WCHAR_MAX +#define WCHAR_MAX __WCHAR_MAX__ +#endif +#ifndef WCHAR_MIN +#define WCHAR_MIN (-__WCHAR_MAX__-1) +#endif + +/* C99 7.18.4 Macros for minimum-width integer constants. + * + * Note that C++ should not check __STDC_CONSTANT_MACROS here, contrary to the + * claims of the C standard (see C++ 18.3.1p2, [cstdint.syn]). + */ + +#define INT8_C(v) (v) +#define UINT8_C(v) (v##U) +#define INT16_C(v) (v) +#define UINT16_C(v) (v##U) +#define INT32_C(v) (v) +#define UINT32_C(v) (v##U) + +/* Only define the 64-bit size macros if we have 64-bit support. */ +#ifdef __INT64_TYPE__ +#define INT64_C(v) (v##LL) +#define UINT64_C(v) (v##ULL) +#endif + +/* 7.18.4.2 Macros for greatest-width integer constants. */ +#define INTMAX_C(v) (v##LL) +#define UINTMAX_C(v) (v##ULL) + +#endif /* __STDC_HOSTED__ */ +#endif /* __CLANG_STDINT_H */ |
