2 * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #ifndef HEADER_NUMBERS_H
11 # define HEADER_NUMBERS_H
15 # if (-1 & 3) == 0x03 /* Two's complement */
17 # define __MAXUINT__(T) ((T) -1)
18 # define __MAXINT__(T) ((T) ((((T) 1) << ((sizeof(T) * CHAR_BIT) - 1)) ^ __MAXUINT__(T)))
19 # define __MININT__(T) (-__MAXINT__(T) - 1)
21 # elif (-1 & 3) == 0x02 /* One's complement */
23 # define __MAXUINT__(T) (((T) -1) + 1)
24 # define __MAXINT__(T) ((T) ((((T) 1) << ((sizeof(T) * CHAR_BIT) - 1)) ^ __MAXUINT__(T)))
25 # define __MININT__(T) (-__MAXINT__(T))
27 # elif (-1 & 3) == 0x01 /* Sign/magnitude */
29 # define __MAXINT__(T) ((T) (((((T) 1) << ((sizeof(T) * CHAR_BIT) - 2)) - 1) | (((T) 1) << ((sizeof(T) * CHAR_BIT) - 2))))
30 # define __MAXUINT__(T) ((T) (__MAXINT__(T) | (((T) 1) << ((sizeof(T) * CHAR_BIT) - 1))))
31 # define __MININT__(T) (-__MAXINT__(T))
35 # error "do not know the integer encoding on this architecture"
40 # define INT8_MIN __MININT__(int8_t)
41 # define INT8_MAX __MAXINT__(int8_t)
42 # define UINT8_MAX __MAXUINT__(uint8_t)
46 # define INT16_MIN __MININT__(int16_t)
47 # define INT16_MAX __MAXINT__(int16_t)
48 # define UINT16_MAX __MAXUINT__(uint16_t)
52 # define INT32_MIN __MININT__(int32_t)
53 # define INT32_MAX __MAXINT__(int32_t)
54 # define UINT32_MAX __MAXUINT__(uint32_t)
58 # define INT64_MIN __MININT__(int64_t)
59 # define INT64_MAX __MAXINT__(int64_t)
60 # define UINT64_MAX __MAXUINT__(uint64_t)
64 # define SIZE_MAX __MAXUINT__(size_t)