Chris Kuklewicz wrote: > apfelmus wrote: >> Up-pointers won't work in Haskell, you'll need a different approach. Can >> you elaborate on what your tree looks like and what it stores? > > "pointers" don't exist in Haskell, though they do exist in the Foreign.* > interface package. > > But Up-values work just fine:
Well, not really: they're read-only. To "update" a single Branch/Leaf in the presence of up-values/"pointers" requires to update the up-values of _every_ Branch/Leaf in the tree. Regards, apfelmus _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
