Hi All, I have a data type defined as
> data D a = D1 Int | D2 a Follow this definition, I have D2 Int,D2 Bool and D2 [D2 Int] as instances of type D. I want to write an overloaded function lift which lifts an atom type to D. It is easily done for D2 Int and D2 Bool using type classes.I can have > class Liftable a where > lift :: a -> L a > > instance Liftable Int where > lift x = D2 x However, I have problem with D2 [D2 Int].I want to lift [Int] to D2 [D2 Int]. Is there any solution to it? Thank you very much. -W-M- @ @ | \_/ _______________________________________________ Haskell mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell