[Haskell-cafe] Re: Kleisli composition operator
duncan.coutts at worc.ox.ac.uk
Sun Aug 3 14:50:46 EDT 2008
On Sun, 2008-08-03 at 15:31 +0000, Roly Perera wrote:
> Daniel Fischer <daniel.is.fischer <at> web.de> writes:
> > Which implementation are you using?
> > IIRC, GHC didn't have it in Control.Monad before the 6.8 branch.
> Duncan Coutts <duncan.coutts at worc.ox.ac.uk> writes:
> > It's not in the Prelude but it is in Control.Monad in base version 3
> > and later. You're probably using an older GHC which has base version
> > 2.x.
> Thanks for the quick responses. Looks like I need to install a version later
> than 6.8.
GHC 6.8 comes with base-3 so has (>=>) in Control.Monad.
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