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08ee6addf7
These definitions were located away from our definitions of other sized int and uint types. Also, the fallback typedef wasn't quite correct, and this changes it to be aliases for int64_t and uint64_t, since those are the largest integers we commonly handle. We also make sure to define corresponding numbers: OSSL_INTMAX_MIN, OSSL_INTMAX_MAX and OSSL_UINTMAX_MAX Reviewed-by: Paul Dale <pauli@openssl.org> (Merged from https://github.com/openssl/openssl/pull/15825)
86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
/*
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* Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef OSSL_INTERNAL_NUMBERS_H
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# define OSSL_INTERNAL_NUMBERS_H
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# pragma once
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# include <limits.h>
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# if (-1 & 3) == 0x03 /* Two's complement */
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# define __MAXUINT__(T) ((T) -1)
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# define __MAXINT__(T) ((T) ((((T) 1) << ((sizeof(T) * CHAR_BIT) - 1)) ^ __MAXUINT__(T)))
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# define __MININT__(T) (-__MAXINT__(T) - 1)
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# elif (-1 & 3) == 0x02 /* One's complement */
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# define __MAXUINT__(T) (((T) -1) + 1)
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# define __MAXINT__(T) ((T) ((((T) 1) << ((sizeof(T) * CHAR_BIT) - 1)) ^ __MAXUINT__(T)))
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# define __MININT__(T) (-__MAXINT__(T))
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# elif (-1 & 3) == 0x01 /* Sign/magnitude */
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# define __MAXINT__(T) ((T) (((((T) 1) << ((sizeof(T) * CHAR_BIT) - 2)) - 1) | (((T) 1) << ((sizeof(T) * CHAR_BIT) - 2))))
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# define __MAXUINT__(T) ((T) (__MAXINT__(T) | (((T) 1) << ((sizeof(T) * CHAR_BIT) - 1))))
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# define __MININT__(T) (-__MAXINT__(T))
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# else
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# error "do not know the integer encoding on this architecture"
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# endif
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# ifndef INT8_MAX
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# define INT8_MIN __MININT__(int8_t)
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# define INT8_MAX __MAXINT__(int8_t)
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# define UINT8_MAX __MAXUINT__(uint8_t)
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# endif
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# ifndef INT16_MAX
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# define INT16_MIN __MININT__(int16_t)
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# define INT16_MAX __MAXINT__(int16_t)
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# define UINT16_MAX __MAXUINT__(uint16_t)
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# endif
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# ifndef INT32_MAX
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# define INT32_MIN __MININT__(int32_t)
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# define INT32_MAX __MAXINT__(int32_t)
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# define UINT32_MAX __MAXUINT__(uint32_t)
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# endif
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# ifndef INT64_MAX
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# define INT64_MIN __MININT__(int64_t)
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# define INT64_MAX __MAXINT__(int64_t)
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# define UINT64_MAX __MAXUINT__(uint64_t)
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# endif
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# ifndef INT128_MAX
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# if defined(__SIZEOF_INT128__) && __SIZEOF_INT128__ == 16
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typedef __int128_t int128_t;
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typedef __uint128_t uint128_t;
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# define INT128_MIN __MININT__(int128_t)
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# define INT128_MAX __MAXINT__(int128_t)
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# define UINT128_MAX __MAXUINT__(uint128_t)
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# endif
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# endif
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# ifndef SIZE_MAX
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# define SIZE_MAX __MAXUINT__(size_t)
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# endif
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# ifndef OSSL_INTMAX_MAX
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# define OSSL_INTMAX_MIN __MININT__(ossl_intmax_t)
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# define OSSL_INTMAX_MAX __MAXINT__(ossl_intmax_t)
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# define OSSL_UINTMAX_MAX __MAXUINT__(ossl_uintmax_t)
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# endif
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#endif
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