[redirecting to GHC users list] John is right. I've added something to the user manual to say so. | -----Original Message----- | From: haskell-bounces@haskell.org [mailto:haskell-bounces@haskell.org] On Behalf Of John Meacham | Sent: 08 March 2005 00:20 | To: haskell@haskell.org | Subject: Re: [Haskell] "Classic" vs. "Cunning Newtype" Derivation | | On Mon, Mar 07, 2005 at 04:06:44PM -0800, Ashley Yakeley wrote: | > I make quite a lot of use of "cunning newtype" deriviation (in GHC), | > because it's easy to understand. | > | > newtype Mytype = MkMytype T deriving C | > | > However, if I use one of the standard derivable classes (Eq, Ord, Enum, | > Bounded, Show, and Read), I believe that form of deriving takes priority. | > | > AFAICT from the H98 Report ch. 10, for Eq, Ord and Bounded this works | > out as the same thing, Enum doesn't apply, and Read and Show do | > something different. Is this correct, or are there subtle differences? | | Read, Show, Typeable, and Data are the only differences AFAIK. | John | | -- | John Meacham - ⑆repetae.net⑆john⑈ | _______________________________________________ | Haskell mailing list | Haskell@haskell.org | http://www.haskell.org/mailman/listinfo/haskell