On Fri, Jan 18, 2013 at 3:32 PM, Eric M. Pashman <eric.pash...@gmail.com> wrote: > > normalize :: (Modular s a, Integral a) => a -> M s a > normalize x = (M (mod x (modulus (undefined :: s)))) :: M s a >
If you want your type variables to be scoped, you have to annotate them explicitly: normalize :: forall s a. (Modular s a, Integral a) => a -> M s a normalize x = M (mod x (modulus (undefined :: s))) See <http://www.haskell.org/ghc/docs/7.4.2/html/users_guide/other-type-extensions.html#scoped-type-variables>. Shachaf _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users
