
#10778: GHC doesn't infer all constrains -------------------------------------+------------------------------------- Reporter: danilo2 | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by dfeuer): Simon, I see pretty much the same error unless I enable `UndecidableInstances`. Should I enable that for the test, or do we still have a problem? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10778#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler