ObjFW  Diff

    (OF_BIGGEST_ALIGNMENT - 1)) & ~(OF_BIGGEST_ALIGNMENT - 1))
#define PRE_IVARS ((struct pre_ivar *)(void *)((char *)self - PRE_IVARS_ALIGN))

static struct {
	Class isa;
} allocFailedException;

uint32_t OFHashSeed;
unsigned long OFHashSeed;

void *
OFAllocMemory(size_t count, size_t size)
{
	void *pointer;

	if OF_UNLIKELY (count == 0 || size == 0)

OFRandom16(void)
{
#if defined(HAVE_ARC4RANDOM)
	return arc4random();
#elif defined(HAVE_GETRANDOM)
	uint16_t buffer;

	OF_ENSURE(getrandom(&buffer, sizeof(buffer), 0) == sizeof(buffer));
	OFEnsure(getrandom(&buffer, sizeof(buffer), 0) == sizeof(buffer));

	return buffer;
#else
	static OFOnceControl onceControl = OFOnceControlInitValue;
	OFOnce(&onceControl, initRandom);
# ifdef HAVE_RANDOM
	return random() & 0xFFFF;

OFRandom32(void)
{
#if defined(HAVE_ARC4RANDOM)
	return arc4random();
#elif defined(HAVE_GETRANDOM)
	uint32_t buffer;

	OF_ENSURE(getrandom(&buffer, sizeof(buffer), 0) == sizeof(buffer));
	OFEnsure(getrandom(&buffer, sizeof(buffer), 0) == sizeof(buffer));

	return buffer;
#else
	return ((uint32_t)OFRandom16() << 16) | OFRandom16();
#endif
}

uint64_t
OFRandom64(void)
{
#if defined(HAVE_ARC4RANDOM_BUF)
	uint64_t buffer;

	arc4random_buf(&buffer, sizeof(buffer));

	return buffer;
#elif defined(HAVE_GETRANDOM)
	uint64_t buffer;

	OF_ENSURE(getrandom(&buffer, sizeof(buffer), 0) == sizeof(buffer));
	OFEnsure(getrandom(&buffer, sizeof(buffer), 0) == sizeof(buffer));

	return buffer;
#else
	return ((uint64_t)OFRandom32() << 32) | OFRandom32();
#endif
}

{
	return (object == self);
}

- (unsigned long)hash
{
	uintptr_t ptr = (uintptr_t)self;
	uint32_t hash;
	unsigned long hash;

	OF_HASH_INIT(hash);
	OFHashInit(&hash);

	for (size_t i = 0; i < sizeof(ptr); i++) {
		OF_HASH_ADD(hash, ptr & 0xFF);
		OFHashAdd(&hash, ptr & 0xFF);
		ptr >>= 8;
	}

	OF_HASH_FINALIZE(hash);
	OFHashFinalize(&hash);

	return hash;
}

- (OFString *)description
{
	/* Classes containing data should reimplement this! */

	Forbid();
# endif
	PRE_IVARS->retainCount++;
# ifndef OF_AMIGAOS_M68K
	Permit();
# endif
#else
	OF_ENSURE(OFSpinlockLock(&PRE_IVARS->retainCountSpinlock) == 0);
	OFEnsure(OFSpinlockLock(&PRE_IVARS->retainCountSpinlock) == 0);
	PRE_IVARS->retainCount++;
	OF_ENSURE(OFSpinlockUnlock(&PRE_IVARS->retainCountSpinlock) == 0);
	OFEnsure(OFSpinlockUnlock(&PRE_IVARS->retainCountSpinlock) == 0);
#endif

	return self;
}

- (unsigned int)retainCount
{

	Permit();

	if (retainCount == 0)
		[self dealloc];
#else
	int retainCount;

	OF_ENSURE(OFSpinlockLock(&PRE_IVARS->retainCountSpinlock) == 0);
	OFEnsure(OFSpinlockLock(&PRE_IVARS->retainCountSpinlock) == 0);
	retainCount = --PRE_IVARS->retainCount;
	OF_ENSURE(OFSpinlockUnlock(&PRE_IVARS->retainCountSpinlock) == 0);
	OFEnsure(OFSpinlockUnlock(&PRE_IVARS->retainCountSpinlock) == 0);

	if (retainCount == 0)
		[self dealloc];
#endif
}

- (instancetype)autorelease