#13600: surprising error message with bang pattern -------------------------------------+------------------------------------- Reporter: andrewufrank | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 Type of failure: Poor/confusing | (amd64) error message | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): Ha ha, Matthew is right! Maybe it would help if, when GHC sees an infix definition for `(!)`, and the `!` immediately precedes the second argument, we suggested the possibility of bang patterns? To suppress the warning, we'd suggest adding a space, thus {{{ f4 ! x = ... }}} I think that'd be useful, if someone wants to try. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13600#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler