(I assume you mean GHC.) Don't look at the compiler, look at the user manual. That describes what's supported. I have no current plans to withdraw any of the current support. Simon | -----Original Message----- | From: glasgow-haskell-users-bounces@haskell.org [mailto:glasgow-haskell-users- | bounces@haskell.org] On Behalf Of MR K P SCHUPKE | Sent: 13 October 2004 14:06 | To: glasgow-haskell-users@haskell.org | Subject: deriving... | | | What is the situation with deriving? | | Some instances can be derived automatically for both data/newtype (built in)? | | Some instances cen be derived automatically for newtype (any)? | | You used to be able to define functions useing {|+|} and {|*|} (or similar) | that could be derived for both data and newtype. | | What is the current status, which methods are supported, and will be | supported going forward. | | I ask this because looking at the code in the compiler it seems very | difficault to extend. It would be to specify how to derive new instances | once and for all... | | Keean. | _______________________________________________ | Glasgow-haskell-users mailing list | Glasgow-haskell-users@haskell.org | http://www.haskell.org/mailman/listinfo/glasgow-haskell-users