ObjFW  Diff

	OFMutableArray *ret = [[self mutableCopy] autorelease];
	[ret addObjectsFromArray: array];
	[ret makeImmutable];

	return ret;
}

- (OFArray *)arrayByRemovingObject: (id)object
{
	OFMutableArray *ret = [[self mutableCopy] autorelease];
	[ret removeObject: object];
	[ret makeImmutable];
	return ret;
}

#ifdef OF_HAVE_BLOCKS
- (OFArray *)mappedArrayUsingBlock: (OFArrayMapBlock)block
{
	OFArray *ret;
	size_t count = self.count;
	id *tmp = OFAllocMemory(count, sizeof(id));