Hello Ganesh, Friday, June 12, 2009, 2:21:54 AM, you wrote:
On the flip side, could you give some examples where ignoring return values is useful and natural?
a lots of! let dll_register mode = when (oldContextMenu /= contextMenu) $ do runProgram$ "regsvr32 "++mode++" /s /c \""++(shext "ArcShellExt.dll\"") runProgram$ "regsvr32 "++mode++" /s /c \""++(shext "ArcShellExt-64.dll\"") return () here, runProgram returns program stdout. and, in runProgram implementation: forkIO (hGetContents stderr >>= evaluate.length >> return ()) or this: forkIO_ action = forkIO action >> return () again, used inside when -- Best regards, Bulat mailto:Bulat.Ziganshin@gmail.com