ObjFW  Diff

	} @finally {
		[self freeMemory: copy];
	}
}

- (void)removeLastObject
{
	size_t count = [array count];
	id object;

	if (count == 0)
		return;

	id object = [self objectAtIndex: [array count] - 1];
	object = [self objectAtIndex: count - 1];
	[array removeLastItem];
	[object release];

	mutations++;
}

- (void)exchangeObjectAtIndex: (size_t)index1