On Feb 19, 2011, at 9:26 PM, Quincey Morris wrote: > On Feb 19, 2011, at 19:06, Kyle Sluder wrote: > >> Your experience indicates that -containsObject: uses pointer identity, >> whereas -member: uses -isEqual:. > > What's especially confusing is that -[NSArray containsObject:] is documented > to use -isEqual. It seems like the NSSet method ought to be called > -containsObjectIdenticalTo: for consistency (and now clarity) reasons.
I think Kyle was just mistaken about this, lead astray by Michael's claims. Andy's experiment shows that -[NSSet containsObject:] relies on equality, not identity, just as one expects. It's just that Michael has two truly non-equal NSNumber objects, as his gdb output showed. Regards, Ken _______________________________________________ Cocoa-dev mailing list ([email protected]) 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 [email protected]
