Stephan Friedrichs wrote: > When looking for an xor function, I found one in Data.Bits but > couldn't use it for Bool, because Bool is no instance of Bits and of > Num (which would be necessary, because it's "class (Num b) => Bits > b"). My question is: Why not? > > [...] > quite trivial... Why is this not part of base? Or am I missing > something?
One reason would be that we don't want 1 + True to typecheck, even if it does have a sensible interpretation. Ganesh =============================================================================== Please access the attached hyperlink for an important electronic communications disclaimer: http://www.credit-suisse.com/legal/en/disclaimer_email_ib.html =============================================================================== _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
