/*

 * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.

 *

 * Licensed under the OpenSSL license (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

# 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 SIZE_MAX

#  define SIZE_MAX __MAXUINT__(size_t)

# endif

#endif