Maybe you have seen some mail lately on this list about something
called "Haskell 1.3", and wondered
What is this "Haskell 1.3" anyway?,
Can I buy it?,
or
Do I have it?
By compiling and running the following two-module Haskell program, you
will at least get an answer to the last question.
-------------- Put in M.hs -------
module M where data M = M M | N ()
-------------- Put in Main.hs ----
import M
main = interact (const (case (M.N) () of M (N ()) -> "No\n"; N () -> "Yes\n"))
-----------------------------------
Magnus & Thomas