On 19.04.2012, at 19:39, Fritz Anderson wrote: > This confuses me. MKMapView.annotations is an NSArray. How can an NSArray be > nil-terminated? It has a count and there's no way to index into it that would > return anything but an object. There's no need and no way to terminate it. > > (...) If, however, jAnnotations is an NSArray, the method should be able to > detect that its contents are not of the supported type. The method shouldn't > crash.
It could be a CFArrayRef. CFArrayRef can handle *any* kind of pointer for its values, if you give it the right callbacks, and it's toll-free-bridged to NSArray. Of course, if you try to get an object out of it and it actually contains something else (like a struct pointer), it'll still crash. Cheers, -- Uli Kusterer "The Witnesses of TeachText are everywhere..." _______________________________________________ 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
