On Sun, Sep 9, 2012 at 2:19 AM, MigMit <miguelim...@yandex.ru> wrote: > Why modify it instead of creating the new one and let the previous tree get > garbage collected?
You can avoid a bunch of copying and allocation by modifying the nodes in-place. See http://blog.johantibell.com/2012/03/improvements-to-hashmap-and-hashset.html for some numbers. -- Johan _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
