ObjFW  Check-in [36c4b260aa]

#if !defined(OF_ATOMIC_OPS)
	of_spinlock_t retain_spinlock;
#endif
};

/* Hopefully no arch needs more than 16 bytes padding */
#define PRE_IVAR_ALIGN ((sizeof(struct pre_ivar) + 15) & ~15)
#define PRE_IVAR ((struct pre_ivar*)((char*)self - PRE_IVAR_ALIGN))
#define PRE_IVAR ((struct pre_ivar*)(void*)((char*)self - PRE_IVAR_ALIGN))

static struct {
	Class isa;
} alloc_failed_exception;
static Class autoreleasepool = Nil;

static SEL cxx_construct = NULL;

	return YES;
}

id
objc_getProperty(id self, SEL _cmd, ptrdiff_t offset, BOOL atomic)
{
	if (atomic) {
		id *ptr = (id*)((char*)self + offset);
		id *ptr = (id*)(void*)((char*)self + offset);
#ifdef OF_THREADS
		unsigned hash = SPINLOCK_HASH(ptr);

		assert(of_spinlock_lock(&spinlocks[hash]));

		@try {
			return [[*ptr retain] autorelease];
		} @finally {
			assert(of_spinlock_unlock(&spinlocks[hash]));
		}
#else
		return [[*ptr retain] autorelease];
#endif
	}

	return *(id*)((char*)self + offset);
	return *(id*)(void*)((char*)self + offset);
}

void
objc_setProperty(id self, SEL _cmd, ptrdiff_t offset, id value, BOOL atomic,
    BOOL copy)
{
	if (atomic) {
		id *ptr = (id*)((char*)self + offset);
		id *ptr = (id*)(void*)((char*)self + offset);
#ifdef OF_THREADS
		unsigned hash = SPINLOCK_HASH(ptr);

		assert(of_spinlock_lock(&spinlocks[hash]));

		@try {
#endif

			assert(of_spinlock_unlock(&spinlocks[hash]));
		}
#endif

		return;
	}

	id *ptr = (id*)((char*)self + offset);
	id *ptr = (id*)(void*)((char*)self + offset);
	id old = *ptr;

	switch (copy) {
	case 0:
		*ptr = [value retain];
		break;
	case 2: