On Mon, Mar 2, 2009 at 6:57 PM, Anish Muttreja
How about this. Is there a reason why I can't replace the variables b and c in the type signature of mapReduce with with (IO b') and (IO c'). b and c can be any types.
mapReduce :: Strategy (IO b') -- evaluation strategy for mapping -> (a -> IO b') -- map function -> Strategy (IO c') -- evaluation strategy for reduction -> ([IO b'] -> (IO c')) -- reduce function -> [a] -- list to map over -> (IO c')
Just remember to wrap all values back in the IO monad.
This is possible, but it probably won't do what you want. The input to
the reduce function will be a list of "IO a" values, not the results
of performing the IO.
--
Dave Menendez