[Haskell-cafe] Re: mapM as a Space Leak

Thomas Hartman wrote in article <910ddf450903261240p4e4fc8b3pa927fac1b80b2a22@mail.gmail.com> in gmane.comp.lang.haskell.cafe:

Well, that's reassuring.

The reason I asked is that the testp function didn't just show poor performance. The state monad implementation actually gave a different answer -- nonterminating, where the pattern matching solution terminated.

Indeed, DIFFERENT Haskell programs can give different answers, even on the SAME Haskell implementation. That should not be surprising at all. -- Edit this signature at http://www.digitas.harvard.edu/cgi-bin/ken/sig 100 Days to close Guantanamo and end torture http://100dayscampaign.org/ http://www.avaaz.org/en/end_the_war_on_terror/