ObjFW  Diff

			if (object == nil || count_ == nil)
				@throw [OFInvalidFormatException
				    exceptionWithClass: [self class]];

			count = (size_t)[[count_ stringValue] decimalValue];

			[_mapTable setValue: (void*)(uintptr_t)count
				     forKey: [object objectByDeserializing]];

			objc_autoreleasePoolPop(pool2);
		}

		objc_autoreleasePoolPop(pool);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (size_t)countForObject: (id)object
{
	return (size_t)(uintptr_t)[_mapTable valueForKey: object];
}

#ifdef OF_HAVE_BLOCKS
- (void)enumerateObjectsAndCountUsingBlock:
    (of_counted_set_enumeration_block_t)block
{
	@try {
		[_mapTable enumerateKeysAndValuesUsingBlock:
		    ^ (void *key, void *value, BOOL *stop) {
			block(key, (size_t)(uintptr_t)value, stop);
		}];
	} @catch (OFEnumerationMutationException *e) {
		@throw [OFEnumerationMutationException
		    exceptionWithClass: [self class]
				object: self];
	}
}
#endif

- (void)addObject: (id)object
{
	size_t count = (size_t)(uintptr_t)[_mapTable valueForKey: object];

	if (SIZE_MAX - count < 1)
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	[_mapTable setValue: (void*)(uintptr_t)(count + 1)
		     forKey: object];
}

- (void)removeObject: (id)object
{
	size_t count = (size_t)(uintptr_t)[_mapTable valueForKey: object];

	if (count == 0)
		return;

	count--;

	if (count > 0)
		[_mapTable setValue: (void*)(uintptr_t)count
			     forKey: object];
	else
		[_mapTable removeValueForKey: object];
}

- (void)makeImmutable
{
}
@end