DDC compiler and effects; better than Haskell? (was Re: [Haskell-cafe] unsafeDestructiveAssign?)

[Ben Lippmeier]

Dan Doel wrote:
> Off hand, I'd say I don't write foo and fooM versions of functions much in 
> actual programs, either. Such duplication goes into libraries...
It would be ok if the duplication /was/ actually in the libraries,
but often it's not.

Note the lack of Data.Map.mapM and Data.Map.foldM. Want to apply a monadic
computation to all the elements of a Data.Map? Convert it to a list and 
back..

Ben.