Re: [Haskell-beginners] Get things from IO monad

On Thu, May 5, 2011 at 5:48 PM, wrote:

Hi,

I have a silly question, Can i get things out of IO monad?

for example, function 'anotherFun' doesn't work.

genFunc :: IO String

anotherFunc :: (Monad m) => m String -- m is a complex monad and is not an IO monad -- m is not an instance of MonadIO so liftIO will not work anotherFunc = do genStr <- genFunc return genStr

I just want to get something from IO monad and wrap it with some other monad. Is there anyway to do that? Thanks.

Not being able to do that is the entire point of the IO monad. What are you trying to do? Antoine

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