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/*
* Copyright (c) 2000,2001 Apple Computer, Inc. All rights reserved.
*
* We build on <machine/types.h> rather than <sys/types.h> in order to
* minimize the global namespace pollution (i.e., we'd like to define
* *only* those identifiers that the C standard mandates should be
* defined by <stdint.h>). Using <machine/types.h> means that (at
* least as of January 2001) all of the extra macros that do get
* #defined by #include'ing <stdint.h> are in the implementor's
* namespace ("_[A-Z].*" or "__.*").
*
* The reason that we do #include the relevant ...types.h instead of
* creating several "competing" typedefs is to make header collisions
* less likely during the transition to C99.
*
* Caveat: There are still five extra typedef's defined by doing it
* this way: "u_int{8,16,32,64}_t" and "register_t". Might be
* fixable via pre- and post- #defines, but probably not worth it.
*/
#ifndef _STDINT_H_
#define _STDINT_H_
#include <machine/types.h>
/* from ISO/IEC 988:1999 spec */
/* 7.18.1.1 Exact-width integer types */
/* int8_t is defined in <machine/types.h> */
/* int16_t is defined in <machine/types.h> */
/* int32_t is defined in <machine/types.h> */
/* int64_t is defined in <machine/types.h> */
typedef u_int8_t uint8_t; /* u_int8_t is defined in <machine/types.h> */
typedef u_int16_t uint16_t; /* u_int16_t is defined in <machine/types.h> */
typedef u_int32_t uint32_t; /* u_int32_t is defined in <machine/types.h> */
typedef u_int64_t uint64_t; /* u_int64_t is defined in <machine/types.h> */
/* 7.18.1.2 Minumun-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 hgolding object pointers */
/* intptr_t is defined in <machine/types.h> */
/* uintptr_t is defined in <machine/types.h> */
/* 7.18.1.5 Greatest-width integer types */
typedef long long intmax_t;
typedef unsigned long long uintmax_t;
/* "C++ implementations should define these macros only when
* __STDC_LIMIT_MACROS is defined before <stdint.h> is included."
* In other words, if C++, then __STDC_LIMIT_MACROS enables the
* macros below. (Note that there also exists a different enabling
* macro (__STDC_CONSTANT_MACROS) for the last few, below.)
*/
#if (! defined(__cplusplus)) || defined(__STDC_LIMIT_MACROS)
/* 7.18.2 Limits of specified-width integer types:
* These #defines specify the minimum and maximum limits
* of each of the types declared above.
*/
/* 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 */
#define INTPTR_MIN INT32_MIN
#define INTPTR_MAX INT32_MAX
#define UINTPTR_MAX UINT32_MAX
/* 7.18.2.5 Limits of greatest-width integer types */
#define INTMAX_MIN INT64_MIN
#define INTMAX_MAX INT64_MAX
#define UINTMAX_MAX UINT64_MAX
/* 7.18.3 "Other" */
#define PTRDIFF_MIN INT32_MIN
#define PTRDIFF_MAX INT32_MAX
/* We have no sig_atomic_t yet, so no SIG_ATOMIC_{MIN,MAX}.
Should end up being {-127,127} or {0,255} ... or bigger.
My bet would be on one of {U}INT32_{MIN,MAX}. */
#define SIZE_MAX UINT32_MAX
#ifndef WCHAR_MIN
# define WCHAR_MIN 0
#endif
#ifndef WCHAR_MAX
# ifdef __WCHAR_MAX__
# define WCHAR_MAX __WCHAR_MAX__
# else
# define WCHAR_MAX 0x7fffffff
# endif
#endif
/* We have no wint_t yet, so no WINT_{MIN,MAX}.
Should end up being {U}INT32_{MIN,MAX}, depending. */
#endif /* if C++, then __STDC_LIMIT_MACROS enables the above macros */
/* "C++ implementations should define these macros only when
* __STDC_CONSTANT_MACROS is defined before <stdint.h> is included."
*/
#if (! defined(__cplusplus)) || defined(__STDC_CONSTANT_MACROS)
/* 7.18.4 Macros for integer constants */
#define INT8_C(v) ((int8_t)v)
#define INT16_C(v) ((int16_t)v)
#define INT32_C(v) (v ## L)
#define INT64_C(v) (v ## LL)
#define UINT8_C(v) ((uint8_t)v)
#define UINT16_C(v) ((uint16_t)v)
#define UINT32_C(v) (v ## UL)
#define UINT64_C(v) (v ## ULL)
#define INTMAX_C(v) (v ## LL)
#define UINTMAX_C(v) (v ## ULL)
#endif /* if C++, then __STDC_CONSTANT_MACROS enables the above macros */
#endif /* _STDINT_H_ */
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