Note the live version of this on haskell wiki is at: http://www.haskell.org/haskellwiki/Wrapper_types
The link below is for the old non-editible version of the haskel wiki. On Thu, 2007-03-15 at 15:34 -0600, Derek Elkins wrote: > Wolfgang Jeltsch wrote: > > Am Donnerstag, 15. März 2007 03:23 schrieb Daniel Mahler: > >> Is there any way for the same type to implement a typeclass multiple ways. > > > > You can wrap the type using newtype, thus creating a new type which can > > implement type class methods differently. > > This technique is sometimes known as a typeclass wrapper and is related to > wrapper types and combines well with phantom types. See > http://www.haskell.org/hawiki/WrapperTypes > _______________________________________________ > Haskell mailing list > [email protected] > http://www.haskell.org/mailman/listinfo/haskell _______________________________________________ Haskell mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell
