Monad instance for Monoid e => (,) e
John Wiegley
johnw at fpcomplete.com
Thu Jul 25 21:09:52 CEST 2013
>>>>> Edward Kmett <ekmett at gmail.com> writes:
> I continue to be strongly in favor of adding this instance as it is a
> fundamental variant of the Writer Monad, and is analogous to the Monad/
> MonadReader instances for (->) e.
+1, also for this reason.
--
John Wiegley
FP Complete Haskell tools, training and consulting
http://fpcomplete.com johnw on #haskell/irc.freenode.net
More information about the Libraries
mailing list