Re: [Haskell-cafe] Lazy vs correct IO

oleg@okmij.org writes:

It is interesting to compare the above main function with the corresponding lazy IO:

Minor point I know, but aren't you really comparing it with the corresponding *strict* IO?

main'' = do names <- getArgs files <- mapM readFile names ^^^^

print $ length $ words (concat files)

This works nicely if you replace the middle line with a lazy version, e.g.: files <- mapM (unsafeInterleaveIO . B.readFile) names -k -- If I haven't seen further, it is by standing in the footprints of giants