The code wasn't working as I expected because I'd failed to initialise
the setOfValuesForCharacteristicTypes NSMutableSet which I was using
check the hashFromCharacteristicTypes before sending the hash to the
dictionary.
I'd presumed it was a problem with set object thinking they weren't
equal. However, Cocoa's clever enough to know when two sets are really
identical; i.e. :
On 15 Jan 2009, at 15:14, Benjamin Stiglitz wrote:
I'm trying to create an NSDictionary that uses key based upon the
contents of a NSSet (specifically a set of NSManagedObjectID's).
I'm currently at a bit loss as to how to do it. My various attempts
at a hash based solution (see below) don't appear to be working.
Are you creating a map from the NSSet to something else? An
NSMapTable may be more appropriate.
NSDictionary keys can be any object that adheres to NSCopying, so
you don’t need to convert the number to a string before placing it
in the dictionary.
(In fact, you can make the set the key, but I have a feeling you
probably don’t want to copy the set.)
_______________________________________________
Cocoa-dev mailing list (email@hidden)
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:
This email sent to email@hidden
