#9588: Add `MonadPlus (Either e)` and `Alternative (Either e)` instances -------------------------------------+------------------------------------- Reporter: hvr | Owner: hvr Type: task | Status: new Priority: normal | Milestone: ⊥ Component: Core Libraries | Version: Resolution: | Keywords: report- | impact Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: #10755 | Differential Revisions: -------------------------------------+------------------------------------- Comment (by ekmett): I've updated the description to note that the CLC approved the IO instances unconditionally, but expressed reservations about the Either instances. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9588#comment:9 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler