ObjFW  Diff

}

- (OFEnumerator *)objectEnumerator
{
	OF_UNRECOGNIZED_SELECTOR
}

- (int)countByEnumeratingWithState: (of_fast_enumeration_state_t *)state
- (int)countByEnumeratingWithState: (OFFastEnumerationState *)state
			   objects: (id *)objects
			     count: (int)count
{
	OFEnumerator *enumerator;
	int i;

	memcpy(&enumerator, state->extra, sizeof(enumerator));

- (OFXMLElement *)XMLElementBySerializing
{
	void *pool = objc_autoreleasePoolPush();
	OFXMLElement *element;

	if ([self isKindOfClass: [OFMutableSet class]])
		element = [OFXMLElement elementWithName: @"OFMutableSet"
					      namespace: OF_SERIALIZATION_NS];
					      namespace: OFSerializationNS];
	else
		element = [OFXMLElement elementWithName: @"OFSet"
					      namespace: OF_SERIALIZATION_NS];
					      namespace: OFSerializationNS];

	for (id <OFSerialization> object in self) {
		void *pool2 = objc_autoreleasePoolPush();
		[element addChild: object.XMLElementBySerializing];
		objc_autoreleasePoolPop(pool2);
	}

	void *pool = objc_autoreleasePoolPush();
	id ret = [[[self objectEnumerator] nextObject] retain];
	objc_autoreleasePoolPop(pool);
	return [ret autorelease];
}

#ifdef OF_HAVE_BLOCKS
- (void)enumerateObjectsUsingBlock: (of_set_enumeration_block_t)block
- (void)enumerateObjectsUsingBlock: (OFSetEnumerationBlock)block
{
	bool stop = false;

	for (id object in self) {
		block(object, &stop);

		if (stop)
			break;
	}
}

- (OFSet *)filteredSetUsingBlock: (of_set_filter_block_t)block
- (OFSet *)filteredSetUsingBlock: (OFSetFilterBlock)block
{
	OFMutableSet *ret = [OFMutableSet set];

	[self enumerateObjectsUsingBlock: ^ (id object, bool *stop) {
		if (block(object))
			[ret addObject: object];
	}];