#9217: GHCi accepts any operator as a value constructor when enclosed in parens ------------------------------------+------------------------------------- Reporter: wz1000 | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 7.6.3 Keywords: | Operating System: Unknown/Multiple Architecture: Unknown/Multiple | Type of failure: Other Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ------------------------------------+------------------------------------- Eg:- 'data P = (+) Char Char' is accepted by GHCi However 'data P = (-) Char Char' is accepted by GHCi 7.8.2, but is reported to be rejected by GHC 7.6.3 GHCi 7.4 is reported to reject these inputs. GHC 7.8.2 also rejects these inputs. Operators defined this way are inaccessible and do not shadow existing operators. Legal operators(those prefixed by a colon) act normally -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9217 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler