#7742: StandaloneDeriving on Read fails for GADTs ---------------------------------+------------------------------------------ Reporter: hoffstaetter | Owner: Type: bug | Status: closed Priority: normal | Component: Compiler Version: 7.6.2 | Resolution: invalid Keywords: | Os: MacOS X Architecture: Unknown/Multiple | Failure: GHC rejects valid program Blockedby: | Blocking: Related: | ---------------------------------+------------------------------------------ Changes (by monoidal): * status: new => closed * resolution: => invalid Comment: I agree with kosmikus. {{{instance Show (Foo a)}}} can be written manually, while {{{instance Read (Foo a)}}} cannot. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7742#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler