Re: #4159: move Monad and MonadFix instances for Either from mtl to base

29 Jun 2010


      On Tue, Jun 29, 2010 at 11:26 AM, Ross Paterson  wrote:
...
The proposal is to move the Monad and MonadFix instances for Either
(currently in the mtl package) to Control.Monad.Instances and
Control.Monad.Fix respectively
+1

(I assume the 'fail' method will keep its default definition of 'error'.)

Regards,

Bas

Re: #4159: move Monad and MonadFix instances for Either from mtl to base

Bas van Dijk