/* * Copyright (c) 2000,2001 Apple Computer, Inc. All rights reserved. * * We build on rather than 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 ). Using means that (at * least as of January 2001) all of the extra macros that do get * #defined by #include'ing 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 /* 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 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 */ /* uintptr_t is defined in */ /* 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 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 #define WCHAR_MAX INT32_MAX /* 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 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_ */