ObjFW  Check-in [11489e7218]

# define OF_BSWAP64_IF_BE(i) i
# define OF_BSWAP16_IF_LE(i) OF_BSWAP16(i)
# define OF_BSWAP32_IF_LE(i) OF_BSWAP32(i)
# define OF_BSWAP64_IF_LE(i) OF_BSWAP64(i)
# define OF_BSWAP32_V_IF_BE(buf, len)
#endif

#define OF_ROL(val, bits) \
	(((val) << (bits)) | ((val) >> (32 - (bits))))
#define OF_ROL(val, bits)						\
	(((val) << ((bits) % (sizeof(val) * 8))) |			\
	(val) >> (sizeof(val) * 8 - ((bits) % (sizeof(val) * 8))))

#define OF_HASH_INIT(hash) hash = 0
#define OF_HASH_ADD(hash, byte)		\
	{				\
		hash += byte;		\
		hash += (hash << 10);	\
		hash ^= (hash >> 6);	\