Hi Thomas,
You wrote:
How do I "import" Control.Monad.ST so I can experiment with it from
ghci and just do
runST
like you had. Instead of qualifying it in some way.
In GHCi, use the :module command (:m) for built-in
modules, and :load and :add for source files.
In Hugs, use :load and :also for both. You need to run Hugs
with the -98 flag to use Control.Monad.ST.
how do I do runST as fully qualified?
Like this:
Prelude> Control.Monad.ST.runST (do {r <- Data.STRef.newSTRef 2007;
Data.STRef.readSTRef r})
2007
Have fun with monads!
Regards,
Yitz
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