llvm-project/clang/lib/Headers/stdint.h

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/*===---- 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
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/* 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
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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;
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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
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typedef unsigned __INT32_TYPE__ uint32_t;
#endif
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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;
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/* 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]).
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*/
#define INT8_MAX 127
#define INT8_MIN (-128)
#define UINT8_MAX 255
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#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
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#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
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#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
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#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
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#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
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#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)
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/* 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]).
*/
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#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__
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#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)
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#endif /* __STDC_HOSTED__ */
#endif /* __CLANG_STDINT_H */