#10190: Add a Monad instance for ((,) w) -------------------------------------+------------------------------------- Reporter: fumieval | Owner: Type: bug | Status: patch Priority: normal | Milestone: Component: Core Libraries | Version: 7.8.4 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by ekmett): No objection from me. This has passed the libraries@ proposal process on at least 2 separate occasions in recent memory, but had been blocked by the fact that Monoid wasn't in scope where the Monad class was defined. We have the compatible Applicative instance. I had honestly thought we already had the instance in 7.10. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10190#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler