#10867: Primop types should not mention () -------------------------------------+------------------------------------- Reporter: simonpj | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by simonpj): Great. But what would need to change if we want the type of `check#` to be {{{ primop Check "check#" GenPrimOp (State# RealWorld -> (# State# RealWorld, a #) ) -> State# RealWorld -> State# RealWorld }}} more like other primops. Somehow it must be returning that unit tuple. (Or perhaps not and it's always been broken!!!) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10867#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler