#9827: void does not use <$ -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: dfeuer Type: task | Status: new Priority: normal | Milestone: 7.10.1 Component: Core Libraries | Version: 7.9 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Easy (less than 1 | Type of failure: Runtime hour) | performance bug Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: Phab:D521 -------------------------------------+------------------------------------- `Data.Functor.void` is currently defined as {{{#!hs void = fmap (const ()) }}} Some `Functor` instances have an optimized `<$`, so this should be {{{#!hs void x = () <$ x }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9827 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler