Re: [Haskell-cafe] Re: How to combine Error and IO monads?

On 12/7/06, J. Garrett Morris wrote:

foo :: ErrorT String IO Int

Since ErrorT String IO Int is not the same as IO, you can't use IO operations directly. In this case, you want:

< a <- lift getLine

You want:

< r <- runErrorT foo

Wow! I found your help terrific! Thank you! Can I give you some money?