#13097: Num a => Num (Down a) -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: Type: feature | Status: new request | Priority: normal | Milestone: Component: | Version: 8.0.1 libraries/base | Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- Let's us write {{{#!hs
deriving instance Num a => Num (Down a)
(<) 10 20 True
(<) @(Down _) 10 20 False }}}
With #12363 {{{#!hs
10 < @(Down _) 20 False }}}
-- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13097 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler