On Feb 19, 2011, at 2:17 PM, Michael Crawford wrote: > I'm trying to compare instances of NSNumber using NSSet. I have a set of > numbers, which represent 64-bit persistent IDs for iTunes media-items. I > access these values using the -[NSNumber longLongValue] method. I'm adding > them to an instance of NSSet and then use that instance to determine whether > or not I've seen the given item before.
> Anyone have previous experience with this problem? Can you shed some light > on where my thinking and assumptions are wrong. The documentation for -[NSSet containsObject:] says: Return Value — YES if anObject is present in the set, otherwise NO. The documentation for -[NSSet member:] says: Return Value — If the set contains an object equal to object (as determined by isEqual:) then that object (typically this will be object), otherwise nil. Jim _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
