Re: NSDictionary key from the content of a set
Re: NSDictionary key from the content of a set
- Subject: Re: NSDictionary key from the content of a set
- From: Benjamin Stiglitz <email@hidden>
- Date: Thu, 15 Jan 2009 10:14:11 -0500
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.
A note on your pasted code:
NSString *hashFromCharacteristicTypes = [NSString stringWithFormat:
[[NSNumber numberWithInteger:hashInt] stringValue]];
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.)
-Ben_______________________________________________
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