80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/*
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* stdint.h - standard types
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*/
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/* $Id$ */
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#ifndef _STDINT_H
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#define _STDINT_H
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/* int8_t is always a char, on all ACK platforms. */
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typedef signed char int8_t;
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typedef unsigned char uint8_t;
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#define INT8_MAX 127
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#define INT8_MIN (-128)
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#define UINT8_MAX 255
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/* int16_t is always a short, on all ACK platforms. */
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typedef signed short int16_t;
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typedef unsigned short uint16_t;
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#define INT16_MAX 32767
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#define INT16_MIN (-32768)
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#define UINT16_MAX 65535
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/* int32_t is either a int or a long. */
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#if _EM_WSIZE == 4
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typedef signed int int32_t;
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typedef unsigned short uint32_t;
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#else
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typedef signed long int32_t;
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typedef unsigned long uint32_t;
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#endif
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#define INT32_MAX 2147483647
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#define INT32_MIN (-2147483648)
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#define UINT32_MAX 4294967295
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/* We only get int64_t if longs are 8 bytes. */
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#if _EM_LSIZE == 8
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typedef signed long int64_t;
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typedef unsigned long uint64_t;
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#define INT64_MAX 2147483647LL
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#define INT64_MIN (-2147483648LL)
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#define UINT64_MAX 4294967295ULL
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typedef int64_t intmax_t;
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typedef uint64_t uintmax_t;
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#else
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typedef int32_t intmax_t;
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typedef uint32_t uintmax_t;
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#endif
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/* Pointers can be either 16 or 32 bits. */
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#if _EM_PSIZE == 2
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typedef int16_t intptr_t;
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typedef uint16_t uintptr_t;
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typedef int16_t ptrdiff_t;
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typedef uint16_t size_t;
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#define INTPTR_MAX 32767
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#define INTPTR_MIN (-32768)
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#define UINTPTR_MAX 65535
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#else
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typedef int32_t intptr_t;
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typedef uint32_t uintptr_t;
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typedef int32_t ptrdiff_t;
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typedef uint32_t size_t;
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#define INTPTR_MAX 2147483647
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#define INTPTR_MIN (-2147483647)
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#define UINTPTR_MAX 4294967295
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#endif
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/* Now those have been defined, these are always the same. */
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#define PTRDIFF_MAX INTPTR_MAX
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#define PTRDIFF_MIN INTPTR_MIN
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#define SIZE_MAX UINTPTR_MAX
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#endif
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