29 Oct
2010
29 Oct
'10
8:19 p.m.
I'm not sure this is in rc2 since I'm using the latest ghc-HEAD (7.1.20101029). In ghc < 7 you needed to import symbols like fromInteger, (>>=) and fail when you used them indirectly. For example when using integer literals or do-notation. I noticed that in my ghc-HEAD this isn't needed anymore: {-# OPTIONS_GHC -Wall #-} {-# LANGUAGE NoImplicitPrelude #-} import Control.Monad ( return ) import System.IO ( IO ) import Data.Int -- Only needed for ghc < 7. -- In fact, the following gives a redundancy warning in ghc-7: import Control.Monad ( (>>=), fail ) import Prelude ( fromInteger ) main :: IO () main = do _ <- return (1 :: Int) return () Is this intentional? Regards, Bas