On Wed, Jun 28, 2006 at 11:52:51AM +0200, Joel Bjrnson wrote: > Hi. I came a cross the following phenomena which, at least to me, > occurs kind of awkward. The code below: > > data MyData a where > DC1 :: (Show a ) => a -> MyData a
GADTs don't yet work right with classes. :( The above, however, doesn't need to be expressed as a GADT, I believe you can write something like: data MyData a = (forall a. Show a) => DC1 a which (this is untested) should do what you want. -- David Roundy _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
