> Also, the SML version uses Vectors, "polymorphic vectors, immutable > sequences with constant-time access". I wonder how immutable these are. > I suspect that changing elements does updates in place with history > tracking?
SML vectors in the standard basis library are truly immutable, and no history tracking for updates is available. The full source code of their experiment is not contained in the paper, so it's hard to tell what they were doing (and if the speed difference would be as pronounced today). _______________________________________________ Haskell mailing list Haskell@haskell.org http://www.haskell.org/mailman/listinfo/haskell
