This code produces "True" with ghc-5.04.2 and ghc-5.02.3. It works as I would expect it to with ghc-4.08.1. Similarly, the derived instances of Ord also don't work.
The only time that I've found in my limited expermentation that equality returns false is: Str "a" == Str "ab" best, leon > infixr 3 :* > infixr 2 :+ > > data RE a = RE a :+ RE a > | RE a :* RE a > | Cat [RE a] > | Star (RE a) > | Plus (RE a) > | Opt (RE a) > | Comp (RE a) > | Empty > | Str [a] > deriving (Show, Eq, Ord) > > main = print (Str "ab" == (Str "a" :+ Str "b")) _______________________________________________ Glasgow-haskell-bugs mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-bugs
