Re: Monad instance for Monoid e => (,) e

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Edward Kmett 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