Le 15 mars 09 à 19:33, Oleg Krupnov a écrit :
I need to use a dictionary inside a long, time-consuming operation. The keys of the dictionary are integers, the values are NSObjects. I could use NSDictionary, but I don't like the overhead of creating NSNumbers for the keys and then comparing them, where I could use integers directly more efficiently, both by time and memory. The question is: is there this kind of fast int-keyed dictionary in Cocoa or elsewhere? Thanks!
You can either use an NSMapTable with NSIntegerMapKeyCallBacks or a CFDictionaryRef with NULL key callbacks.
In both case, you should use the C API and not use objc call, even if NSMapTable is a class in 10.5 and CFDictionary is tool free bridged. The bridge works only with CFDictionary initialized with Copy Key , CFType Value call backs.
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