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257 lines
6.9 KiB
C
257 lines
6.9 KiB
C
/**
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* This file has no copyright assigned and is placed in the Public Domain.
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* This file was originally part of the w64 mingw-runtime package.
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*/
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/* ISO C9x 7.18 Integer types <stdint.h>
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* Based on ISO/IEC SC22/WG14 9899 Committee draft (SC22 N2794)
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*
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* THIS SOFTWARE IS NOT COPYRIGHTED
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*
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* Contributor: Danny Smith <danny_r_smith_2001@yahoo.co.nz>
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* Modified for libusb/MSVC: Pete Batard <pbatard@gmail.com>
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*
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* This source code is offered for use in the public domain. You may
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* use, modify or distribute it freely.
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*
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* This code is distributed in the hope that it will be useful but
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* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
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* DISCLAIMED. This includes but is not limited to warranties of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Date: 2010-04-02
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*/
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#ifndef _MSC_VER
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#error This header should only be used with Microsoft compilers
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#endif
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#ifndef _STDINT_H
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#define _STDINT_H
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#ifndef _INTPTR_T_DEFINED
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#define _INTPTR_T_DEFINED
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#ifndef __intptr_t_defined
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#define __intptr_t_defined
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#undef intptr_t
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#ifdef _WIN64
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typedef __int64 intptr_t;
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#else
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typedef int intptr_t;
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#endif /* _WIN64 */
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#endif /* __intptr_t_defined */
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#endif /* _INTPTR_T_DEFINED */
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#ifndef _UINTPTR_T_DEFINED
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#define _UINTPTR_T_DEFINED
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#ifndef __uintptr_t_defined
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#define __uintptr_t_defined
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#undef uintptr_t
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#ifdef _WIN64
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typedef unsigned __int64 uintptr_t;
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#else
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typedef unsigned int uintptr_t;
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#endif /* _WIN64 */
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#endif /* __uintptr_t_defined */
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#endif /* _UINTPTR_T_DEFINED */
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#ifndef _PTRDIFF_T_DEFINED
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#define _PTRDIFF_T_DEFINED
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#ifndef _PTRDIFF_T_
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#define _PTRDIFF_T_
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#undef ptrdiff_t
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#ifdef _WIN64
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typedef __int64 ptrdiff_t;
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#else
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typedef int ptrdiff_t;
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#endif /* _WIN64 */
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#endif /* _PTRDIFF_T_ */
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#endif /* _PTRDIFF_T_DEFINED */
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#ifndef _WCHAR_T_DEFINED
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#define _WCHAR_T_DEFINED
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#ifndef __cplusplus
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typedef unsigned short wchar_t;
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#endif /* C++ */
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#endif /* _WCHAR_T_DEFINED */
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#ifndef _WCTYPE_T_DEFINED
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#define _WCTYPE_T_DEFINED
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#ifndef _WINT_T
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#define _WINT_T
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typedef unsigned short wint_t;
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typedef unsigned short wctype_t;
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#endif /* _WINT_T */
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#endif /* _WCTYPE_T_DEFINED */
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/* 7.18.1.1 Exact-width integer types */
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typedef __int8 int8_t;
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typedef unsigned __int8 uint8_t;
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typedef __int16 int16_t;
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typedef unsigned __int16 uint16_t;
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typedef __int32 int32_t;
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typedef unsigned __int32 uint32_t;
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typedef __int64 int64_t;
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typedef unsigned __int64 uint64_t;
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/* 7.18.1.2 Minimum-width integer types */
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typedef signed char int_least8_t;
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typedef unsigned char uint_least8_t;
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typedef short int_least16_t;
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typedef unsigned short uint_least16_t;
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typedef int int_least32_t;
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typedef unsigned uint_least32_t;
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typedef __int64 int_least64_t;
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typedef unsigned __int64 uint_least64_t;
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/* 7.18.1.3 Fastest minimum-width integer types
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* Not actually guaranteed to be fastest for all purposes
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* Here we use the exact-width types for 8 and 16-bit ints.
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*/
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typedef __int8 int_fast8_t;
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typedef unsigned __int8 uint_fast8_t;
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typedef __int16 int_fast16_t;
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typedef unsigned __int16 uint_fast16_t;
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typedef __int32 int_fast32_t;
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typedef unsigned __int32 uint_fast32_t;
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typedef __int64 int_fast64_t;
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typedef unsigned __int64 uint_fast64_t;
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/* 7.18.1.5 Greatest-width integer types */
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typedef __int64 intmax_t;
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typedef unsigned __int64 uintmax_t;
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/* 7.18.2 Limits of specified-width integer types */
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/* 7.18.2.1 Limits of exact-width integer types */
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#define INT8_MIN (-128)
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#define INT16_MIN (-32768)
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#define INT32_MIN (-2147483647 - 1)
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#define INT64_MIN (-9223372036854775807LL - 1)
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#define INT8_MAX 127
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#define INT16_MAX 32767
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#define INT32_MAX 2147483647
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#define INT64_MAX 9223372036854775807LL
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#define UINT8_MAX 255
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#define UINT16_MAX 65535
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#define UINT32_MAX 0xffffffffU /* 4294967295U */
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#define UINT64_MAX 0xffffffffffffffffULL /* 18446744073709551615ULL */
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/* 7.18.2.2 Limits of minimum-width integer types */
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#define INT_LEAST8_MIN INT8_MIN
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#define INT_LEAST16_MIN INT16_MIN
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#define INT_LEAST32_MIN INT32_MIN
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#define INT_LEAST64_MIN INT64_MIN
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#define INT_LEAST8_MAX INT8_MAX
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#define INT_LEAST16_MAX INT16_MAX
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#define INT_LEAST32_MAX INT32_MAX
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#define INT_LEAST64_MAX INT64_MAX
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#define UINT_LEAST8_MAX UINT8_MAX
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#define UINT_LEAST16_MAX UINT16_MAX
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#define UINT_LEAST32_MAX UINT32_MAX
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#define UINT_LEAST64_MAX UINT64_MAX
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/* 7.18.2.3 Limits of fastest minimum-width integer types */
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#define INT_FAST8_MIN INT8_MIN
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#define INT_FAST16_MIN INT16_MIN
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#define INT_FAST32_MIN INT32_MIN
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#define INT_FAST64_MIN INT64_MIN
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#define INT_FAST8_MAX INT8_MAX
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#define INT_FAST16_MAX INT16_MAX
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#define INT_FAST32_MAX INT32_MAX
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#define INT_FAST64_MAX INT64_MAX
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#define UINT_FAST8_MAX UINT8_MAX
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#define UINT_FAST16_MAX UINT16_MAX
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#define UINT_FAST32_MAX UINT32_MAX
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#define UINT_FAST64_MAX UINT64_MAX
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/* 7.18.2.4 Limits of integer types capable of holding
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object pointers */
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#ifdef _WIN64
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#define INTPTR_MIN INT64_MIN
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#define INTPTR_MAX INT64_MAX
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#define UINTPTR_MAX UINT64_MAX
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#else
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#define INTPTR_MIN INT32_MIN
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#define INTPTR_MAX INT32_MAX
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#define UINTPTR_MAX UINT32_MAX
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#endif
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/* 7.18.2.5 Limits of greatest-width integer types */
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#define INTMAX_MIN INT64_MIN
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#define INTMAX_MAX INT64_MAX
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#define UINTMAX_MAX UINT64_MAX
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/* 7.18.3 Limits of other integer types */
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#ifdef _WIN64
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#define PTRDIFF_MIN INT64_MIN
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#define PTRDIFF_MAX INT64_MAX
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#else
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#define PTRDIFF_MIN INT32_MIN
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#define PTRDIFF_MAX INT32_MAX
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#endif
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#define SIG_ATOMIC_MIN INT32_MIN
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#define SIG_ATOMIC_MAX INT32_MAX
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#ifndef SIZE_MAX
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#ifdef _WIN64
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#define SIZE_MAX UINT64_MAX
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#else
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#define SIZE_MAX UINT32_MAX
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#endif
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#endif
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#ifndef WCHAR_MIN /* also in wchar.h */
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#define WCHAR_MIN 0U
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#define WCHAR_MAX 0xffffU
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#endif
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/*
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* wint_t is unsigned short for compatibility with MS runtime
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*/
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#define WINT_MIN 0U
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#define WINT_MAX 0xffffU
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/* 7.18.4 Macros for integer constants */
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/* 7.18.4.1 Macros for minimum-width integer constants
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Accoding to Douglas Gwyn <gwyn@arl.mil>:
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"This spec was changed in ISO/IEC 9899:1999 TC1; in ISO/IEC
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9899:1999 as initially published, the expansion was required
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to be an integer constant of precisely matching type, which
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is impossible to accomplish for the shorter types on most
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platforms, because C99 provides no standard way to designate
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an integer constant with width less than that of type int.
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TC1 changed this to require just an integer constant
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*expression* with *promoted* type."
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The trick used here is from Clive D W Feather.
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*/
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#define INT8_C(val) (INT_LEAST8_MAX-INT_LEAST8_MAX+(val))
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#define INT16_C(val) (INT_LEAST16_MAX-INT_LEAST16_MAX+(val))
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#define INT32_C(val) (INT_LEAST32_MAX-INT_LEAST32_MAX+(val))
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/* The 'trick' doesn't work in C89 for long long because, without
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suffix, (val) will be evaluated as int, not intmax_t */
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#define INT64_C(val) val##i64
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#define UINT8_C(val) (val)
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#define UINT16_C(val) (val)
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#define UINT32_C(val) (val##i32)
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#define UINT64_C(val) val##ui64
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/* 7.18.4.2 Macros for greatest-width integer constants */
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#define INTMAX_C(val) val##i64
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#define UINTMAX_C(val) val##ui64
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#endif
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