Re: [Haskell-cafe] A mistake in haskellwiki

leaveye.guo:

Hi haskellers:

There is a mistake in http://www.haskell.org/haskellwiki/State_Monad

It post two functions like this :

evalState :: State s a -> s -> a evalState act = fst $ runState act

execState :: State s a -> s -> s execState act = snd $ runState act

Both the '$' operators should be '.'.

Anyone would correct it ?

Well, it's a wiki ... :-) -- Don