stdint.h
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- /* ISO C9x 7.18 Integer types <stdint.h>
- * Based on ISO/IEC SC22/WG14 9899 Committee draft (SC22 N2794)
- *
- * THIS SOFTWARE IS NOT COPYRIGHTED
- *
- * Contributor: Danny Smith <danny_r_smith_2001@yahoo.co.nz>
- *
- * This source code is offered for use in the public domain. You may
- * use, modify or distribute it freely.
- *
- * This code is distributed in the hope that it will be useful but
- * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
- * DISCLAIMED. This includes but is not limited to warranties of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Date: 2000-12-02
- */
- #ifndef _STDINT_H
- #define _STDINT_H
- #define __need_wint_t
- #define __need_wchar_t
- #include <stddef.h>
- /* 7.18.1.1 Exact-width integer types */
- typedef signed char int8_t;
- typedef unsigned char uint8_t;
- typedef short int16_t;
- typedef unsigned short uint16_t;
- typedef int int32_t;
- typedef unsigned uint32_t;
- typedef __int64 int64_t;
- typedef unsigned __int64 uint64_t;
- /* 7.18.1.2 Minimum-width integer types */
- typedef signed char int_least8_t;
- typedef unsigned char uint_least8_t;
- typedef short int_least16_t;
- typedef unsigned short uint_least16_t;
- typedef int int_least32_t;
- typedef unsigned uint_least32_t;
- typedef __int64 int_least64_t;
- typedef unsigned __int64 uint_least64_t;
- /* 7.18.1.3 Fastest minimum-width integer types
- * Not actually guaranteed to be fastest for all purposes
- * Here we use the exact-width types for 8 and 16-bit ints.
- */
- typedef char int_fast8_t;
- typedef unsigned char uint_fast8_t;
- typedef short int_fast16_t;
- typedef unsigned short uint_fast16_t;
- typedef int int_fast32_t;
- typedef unsigned int uint_fast32_t;
- typedef __int64 int_fast64_t;
- typedef unsigned __int64 uint_fast64_t;
- /* 7.18.1.4 Integer types capable of holding object pointers */
- /*typedef int intptr_t;
- typedef unsigned uintptr_t;*/
- /* 7.18.1.5 Greatest-width integer types */
- typedef __int64 intmax_t;
- typedef unsigned __int64 uintmax_t;
- /* 7.18.2 Limits of specified-width integer types */
- #if !defined ( __cplusplus) || defined (__STDC_LIMIT_MACROS)
- /* 7.18.2.1 Limits of exact-width integer types */
- #define INT8_MIN (-128)
- #define INT16_MIN (-32768)
- #define INT32_MIN (-2147483647 - 1)
- #define INT64_MIN (-9223372036854775807LL - 1)
- #define INT8_MAX 127
- #define INT16_MAX 32767
- #define INT32_MAX 2147483647
- #define INT64_MAX 9223372036854775807LL
- #define UINT8_MAX 0xff /* 255U */
- #define UINT16_MAX 0xffff /* 65535U */
- #define UINT32_MAX 0xffffffff /* 4294967295U */
- #define UINT64_MAX 0xffffffffffffffffULL /* 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 Limits of other integer types */
- #define PTRDIFF_MIN INT32_MIN
- #define PTRDIFF_MAX INT32_MAX
- #define SIG_ATOMIC_MIN INT32_MIN
- #define SIG_ATOMIC_MAX INT32_MAX
- #define SIZE_MAX UINT32_MAX
- #ifndef WCHAR_MIN /* also in wchar.h */
- #define WCHAR_MIN 0
- #define WCHAR_MAX ((wchar_t)-1) /* UINT16_MAX */
- #endif
- /*
- * wint_t is unsigned short for compatibility with MS runtime
- */
- #define WINT_MIN 0
- #define WINT_MAX ((wint_t)-1) /* UINT16_MAX */
- #endif /* !defined ( __cplusplus) || defined __STDC_LIMIT_MACROS */
- /* 7.18.4 Macros for integer constants */
- #if !defined ( __cplusplus) || defined (__STDC_CONSTANT_MACROS)
- /* 7.18.4.1 Macros for minimum-width integer constants
- Accoding to Douglas Gwyn <gwyn@arl.mil>:
- "This spec was changed in ISO/IEC 9899:1999 TC1; in ISO/IEC
- 9899:1999 as initially published, the expansion was required
- to be an integer constant of precisely matching type, which
- is impossible to accomplish for the shorter types on most
- platforms, because C99 provides no standard way to designate
- an integer constant with width less than that of type int.
- TC1 changed this to require just an integer constant
- *expression* with *promoted* type."
- The trick used here is from Clive D W Feather.
- */
- #define INT8_C(val) (INT_LEAST8_MAX-INT_LEAST8_MAX+(val))
- #define INT16_C(val) (INT_LEAST16_MAX-INT_LEAST16_MAX+(val))
- #define INT32_C(val) (INT_LEAST32_MAX-INT_LEAST32_MAX+(val))
- #define INT64_C(val) (INT_LEAST64_MAX-INT_LEAST64_MAX+(val))
- #define UINT8_C(val) (UINT_LEAST8_MAX-UINT_LEAST8_MAX+(val))
- #define UINT16_C(val) (UINT_LEAST16_MAX-UINT_LEAST16_MAX+(val))
- #define UINT32_C(val) (UINT_LEAST32_MAX-UINT_LEAST32_MAX+(val))
- #define UINT64_C(val) (UINT_LEAST64_MAX-UINT_LEAST64_MAX+(val))
- /* 7.18.4.2 Macros for greatest-width integer constants */
- #define INTMAX_C(val) (INTMAX_MAX-INTMAX_MAX+(val))
- #define UINTMAX_C(val) (UINTMAX_MAX-UINTMAX_MAX+(val))
- #endif /* !defined ( __cplusplus) || defined __STDC_CONSTANT_MACROS */
- #endif