> Are there any plans to implement multiple parameter type classes in Hugs
> any time soon? I'd really really like them!
If you don't need the full power of Haskell's module system,
you should try using Mark P Jones' Hugs 1.3c which includes
multi-parameter type classes, rank-2 polymorphism,
existential types, polymorphic recursion, extensible types,
scoped type variables, etc.
http://www.cs.nott.ac.uk/~mpj/hugs13/
Some of these extensions are being considered for inclusion in
Standard Haskell (either as implemented or, in modified form
as a result of experience of using them in Hugs or GHC) so
people should download 1.3c and see what it can do. Besides
which, it's fun!
1.3c doesn't include the extensions we added here at Yale:
qualified modules, GreenCard support, more standard libraries, etc.
We were already in the middle of a huge set of changes when 1.3c
arrived - so it'll be a wee while before we can release a merged
system.
--
Alastair Reid Yale Haskell Project Hacker
[EMAIL PROTECTED] http://WWW.CS.Yale.EDU/homes/reid-alastair/
