/* * Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy * in the file LICENSE in the source distribution or at * https://www.openssl.org/source/license.html */ #ifndef OSSL_INTERNAL_NUMBERS_H # define OSSL_INTERNAL_NUMBERS_H # pragma once # include <limits.h> # if (-1 & 3) == 0x03 /* Two's complement */ # define __MAXUINT__(T) ((T) -1) # define __MAXINT__(T) ((T) ((((T) 1) << ((sizeof(T) * CHAR_BIT) - 1)) ^ __MAXUINT__(T))) # define __MININT__(T) (-__MAXINT__(T) - 1) # elif (-1 & 3) == 0x02 /* One's complement */ # define __MAXUINT__(T) (((T) -1) + 1) # define __MAXINT__(T) ((T) ((((T) 1) << ((sizeof(T) * CHAR_BIT) - 1)) ^ __MAXUINT__(T))) # define __MININT__(T) (-__MAXINT__(T)) # elif (-1 & 3) == 0x01 /* Sign/magnitude */ # define __MAXINT__(T) ((T) (((((T) 1) << ((sizeof(T) * CHAR_BIT) - 2)) - 1) | (((T) 1) << ((sizeof(T) * CHAR_BIT) - 2)))) # define __MAXUINT__(T) ((T) (__MAXINT__(T) | (((T) 1) << ((sizeof(T) * CHAR_BIT) - 1)))) # define __MININT__(T) (-__MAXINT__(T)) # else # error "do not know the integer encoding on this architecture" # endif # ifndef INT8_MAX # define INT8_MIN __MININT__(int8_t) # define INT8_MAX __MAXINT__(int8_t) # define UINT8_MAX __MAXUINT__(uint8_t) # endif # ifndef INT16_MAX # define INT16_MIN __MININT__(int16_t) # define INT16_MAX __MAXINT__(int16_t) # define UINT16_MAX __MAXUINT__(uint16_t) # endif # ifndef INT32_MAX # define INT32_MIN __MININT__(int32_t) # define INT32_MAX __MAXINT__(int32_t) # define UINT32_MAX __MAXUINT__(uint32_t) # endif # ifndef INT64_MAX # define INT64_MIN __MININT__(int64_t) # define INT64_MAX __MAXINT__(int64_t) # define UINT64_MAX __MAXUINT__(uint64_t) # endif # ifndef INT128_MAX # if defined(__SIZEOF_INT128__) && __SIZEOF_INT128__ == 16 typedef __int128_t int128_t; typedef __uint128_t uint128_t; # define INT128_MIN __MININT__(int128_t) # define INT128_MAX __MAXINT__(int128_t) # define UINT128_MAX __MAXUINT__(uint128_t) # endif # endif # ifndef SIZE_MAX # define SIZE_MAX __MAXUINT__(size_t) # endif # ifndef OSSL_INTMAX_MAX # define OSSL_INTMAX_MIN __MININT__(ossl_intmax_t) # define OSSL_INTMAX_MAX __MAXINT__(ossl_intmax_t) # define OSSL_UINTMAX_MAX __MAXUINT__(ossl_uintmax_t) # endif #endif