kastiglione/ConcurrentCollectionOperations — pull request #1 by CodaFi (2013-06-06 04:32:42+00:00)
Title: NSMapTable

Apologies for the completely hacky copy implementation, there's currently no way to get the pointer options associated with a map table, which makes anything I tried to do unstable.

(It's under Bug ID# 14078066 if you want to read more).