Am Freitag, den 15.08.2014, 23:10 +0300 schrieb Wolfgang Jeltsch: > Hi, > > the module Control.Arrow declares a set of rules for the Arrow class. It > is marked “Trustworthy”, probably to allow these rules to actually fire. > > Now these rules are only correct for class instances that actually > satisfy the arrow laws. If the author of another module defines an > instance of Arrow that does not respect the laws, this other module > could still be considered “Safe” by GHC, although the rules from > Control.Arrow are bogus now. > > Is this considered a problem? > > All the best, > Wolfgang
Hi, could someone please answer this e-mail? This issue is important for me. All the best, Wolfgang _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users