/* * Copyright (c) 2000-2010 Apple Inc. * All rights reserved. */ #ifndef _KERNEL_STDINT_H_ #define _KERNEL_STDINT_H_ #ifndef KERNEL /* For user-space code that may include this header */ #include_next #else /* KERNEL */ #include #if __LP64__ #define __WORDSIZE 64 #else #define __WORDSIZE 32 #endif /* from ISO/IEC 988:1999 spec */ /* 7.18.1.1 Exact-width integer types */ /* int8_t is defined in */ /* int16_t is defined in */ /* int32_t is defined in */ /* int64_t is defined in */ typedef u_int8_t uint8_t; /* u_int8_t is defined in */ typedef u_int16_t uint16_t; /* u_int16_t is defined in */ typedef u_int32_t uint32_t; /* u_int32_t is defined in */ typedef u_int64_t uint64_t; /* u_int64_t is defined in */ /* 7.18.1.2 Minimum-width integer types */ typedef int8_t int_least8_t; typedef int16_t int_least16_t; typedef int32_t int_least32_t; typedef int64_t int_least64_t; typedef uint8_t uint_least8_t; typedef uint16_t uint_least16_t; typedef uint32_t uint_least32_t; typedef uint64_t uint_least64_t; /* 7.18.1.3 Fastest-width integer types */ typedef int8_t int_fast8_t; typedef int16_t int_fast16_t; typedef int32_t int_fast32_t; typedef int64_t int_fast64_t; typedef uint8_t uint_fast8_t; typedef uint16_t uint_fast16_t; typedef uint32_t uint_fast32_t; typedef uint64_t uint_fast64_t; /* 7.18.1.4 Integer types capable of holding object pointers */ /* intptr_t is defined in */ /* uintptr_t is defined in */ /* 7.18.1.5 Greatest-width integer types */ #ifdef __INTMAX_TYPE__ typedef __INTMAX_TYPE__ intmax_t; #else #ifdef __LP64__ typedef long int intmax_t; #else typedef long long int intmax_t; #endif /* __LP64__ */ #endif /* __INTMAX_TYPE__ */ #ifdef __UINTMAX_TYPE__ typedef __UINTMAX_TYPE__ uintmax_t; #else #ifdef __LP64__ typedef long unsigned int uintmax_t; #else typedef long long unsigned int uintmax_t; #endif /* __LP64__ */ #endif /* __UINTMAX_TYPE__ */ /* 7.18.4 Macros for integer constants */ #define INT8_C(v) (v) #define INT16_C(v) (v) #define INT32_C(v) (v) #define INT64_C(v) (v ## LL) #define UINT8_C(v) (v) #define UINT16_C(v) (v) #define UINT32_C(v) (v ## U) #define UINT64_C(v) (v ## ULL) #ifdef __LP64__ #define INTMAX_C(v) (v ## L) #define UINTMAX_C(v) (v ## UL) #else #define INTMAX_C(v) (v ## LL) #define UINTMAX_C(v) (v ## ULL) #endif /* 7.18.2 Limits of specified-width integer types: * These #defines specify the minimum and maximum limits * of each of the types declared above. * * They must have "the same type as would an expression that is an * object of the corresponding type converted according to the integer * promotion". */ /* 7.18.2.1 Limits of exact-width integer types */ #define INT8_MAX 127 #define INT16_MAX 32767 #define INT32_MAX 2147483647 #define INT64_MAX 9223372036854775807LL #define INT8_MIN -128 #define INT16_MIN -32768 /* Note: the literal "most negative int" cannot be written in C -- the rules in the standard (section 6.4.4.1 in C99) will give it an unsigned type, so INT32_MIN (and the most negative member of any larger signed type) must be written via a constant expression. */ #define INT32_MIN (-INT32_MAX-1) #define INT64_MIN (-INT64_MAX-1) #define UINT8_MAX 255 #define UINT16_MAX 65535 #define UINT32_MAX 4294967295U #define UINT64_MAX 18446744073709551615ULL /* 7.18.2.2 Limits of minimum-width integer types */ #define INT_LEAST8_MIN INT8_MIN #define INT_LEAST16_MIN INT16_MIN #define INT_LEAST32_MIN INT32_MIN #define INT_LEAST64_MIN INT64_MIN #define INT_LEAST8_MAX INT8_MAX #define INT_LEAST16_MAX INT16_MAX #define INT_LEAST32_MAX INT32_MAX #define INT_LEAST64_MAX INT64_MAX #define UINT_LEAST8_MAX UINT8_MAX #define UINT_LEAST16_MAX UINT16_MAX #define UINT_LEAST32_MAX UINT32_MAX #define UINT_LEAST64_MAX UINT64_MAX /* 7.18.2.3 Limits of fastest minimum-width integer types */ #define INT_FAST8_MIN INT8_MIN #define INT_FAST16_MIN INT16_MIN #define INT_FAST32_MIN INT32_MIN #define INT_FAST64_MIN INT64_MIN #define INT_FAST8_MAX INT8_MAX #define INT_FAST16_MAX INT16_MAX #define INT_FAST32_MAX INT32_MAX #define INT_FAST64_MAX INT64_MAX #define UINT_FAST8_MAX UINT8_MAX #define UINT_FAST16_MAX UINT16_MAX #define UINT_FAST32_MAX UINT32_MAX #define UINT_FAST64_MAX UINT64_MAX /* 7.18.2.4 Limits of integer types capable of holding object pointers */ #if __WORDSIZE == 64 #define INTPTR_MAX 9223372036854775807L #else #define INTPTR_MAX 2147483647L #endif #define INTPTR_MIN (-INTPTR_MAX-1) #if __WORDSIZE == 64 #define UINTPTR_MAX 18446744073709551615UL #else #define UINTPTR_MAX 4294967295UL #endif /* 7.18.2.5 Limits of greatest-width integer types */ #define INTMAX_MAX INTMAX_C(9223372036854775807) #define UINTMAX_MAX UINTMAX_C(18446744073709551615) #define INTMAX_MIN (-INTMAX_MAX-1) /* 7.18.3 "Other" */ #if __WORDSIZE == 64 #define PTRDIFF_MIN INTMAX_MIN #define PTRDIFF_MAX INTMAX_MAX #else #define PTRDIFF_MIN INT32_MIN #define PTRDIFF_MAX INT32_MAX #endif #define SIZE_MAX UINTPTR_MAX #if defined(__STDC_WANT_LIB_EXT1__) && __STDC_WANT_LIB_EXT1__ >= 1 #define RSIZE_MAX (SIZE_MAX >> 1) #endif #ifndef WCHAR_MAX # ifdef __WCHAR_MAX__ # define WCHAR_MAX __WCHAR_MAX__ # else # define WCHAR_MAX 0x7fffffff # endif #endif /* WCHAR_MIN should be 0 if wchar_t is an unsigned type and (-WCHAR_MAX-1) if wchar_t is a signed type. Unfortunately, it turns out that -fshort-wchar changes the signedness of the type. */ #ifndef WCHAR_MIN # if WCHAR_MAX == 0xffff # define WCHAR_MIN 0 # else # define WCHAR_MIN (-WCHAR_MAX-1) # endif #endif #define WINT_MIN INT32_MIN #define WINT_MAX INT32_MAX #define SIG_ATOMIC_MIN INT32_MIN #define SIG_ATOMIC_MAX INT32_MAX #endif /* KERNEL */ #endif /* _KERNEL_STDINT_H_ */