Am Mittwoch, 3. August 2005 19:07 schrieb Srinivas Nedunuri: > [...] > I have a bunch of ST code, and then somewhere in there I had the misfortune > of needing to insert a file copy and bam I'm now stuck with the dang IO > monad which goes and "infects" the entire program.
You can use something like myPureComputation :: String -> ST s Int where the parameter denotes the file content. Then you do something like this: do fileContent <- readFile "myFile" print $ runST $ myPureComputation fileContent So you don't need to infect your ST computation with I/O the same way you often don't need to infect an ordinary pure calculation with I/O. Or did you mean something different? > [...] Regards, Wolfgang _______________________________________________ Haskell mailing list Haskell@haskell.org http://www.haskell.org/mailman/listinfo/haskell