#16365: Inconsistency in quantified constraint solving -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.6.3 Resolution: | Keywords: | QuantifiedConstraints 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 RyanGlScott): Note that this is quite annoying in practice for the `singletons` library, as the existence of this bug prevents it from using `deriving` to generate its `Show` instances, instead forcing it to laboriously generate `Show` instances with Template Haskell. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16365#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler