/*
* Copyright (c) 2008 - 2009
* Jonathan Schleifer <js@webkeks.org>
*
* All rights reserved.
*
* This file is part of libobjfw. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE included in
* the packaging of this file.
*/
#ifdef __GNUC__
#define OF_INLINE inline __attribute__((always_inline))
#define OF_LIKELY(cond) __builtin_expect(!!(cond), 1)
#define OF_UNLIKELY(cond) __builtin_expect(!!(cond), 0)
#else
#define OF_INLINE inline
#define OF_LIKELY(cond) cond
#define OF_UNLIKELY(cond) cond
#endif
#if defined(OF_BIG_ENDIAN)
static OF_INLINE void
OF_BSWAP_V(uint8_t *buf, size_t len)
{
uint32_t t;
while (len--) {
t = (uint32_t)((uint32_t)buf[3] << 8 | buf[2]) << 16 |
((uint32_t)buf[1] << 8 | buf[0]);
*(uint32_t*)buf = t;
buf += sizeof(t);
}
}
#elif defined(OF_LITTLE_ENDIAN)
#define OF_BSWAP_V(buf, len)
#else
#error Please define either OF_BIG_ENDIAN or OF_LITTLE_ENDIAN!
#endif
#define OF_ROL(val, bits) \
(((val) << (bits)) | ((val) >> (32 - (bits))))
#define OF_HASH_INIT(hash) hash = 0
#define OF_HASH_ADD(hash, byte) \
{ \
hash += byte; \
hash += (hash << 10); \
hash ^= (hash >> 6); \
}
#define OF_HASH_FINALIZE(hash) \
{ \
hash += (hash << 3); \
hash ^= (hash >> 11); \
hash += (hash << 15); \
}