#12708: RFC: Representation polymorphic Num -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Core Libraries | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by Iceland_jack): {{{#!hs instance Eq (MutVar# s a) where (==) :: MutVar# s a -> MutVar# s a -> Bool a == b = isTrue# (sameMutVar# a b) instance Eq (MVar# s a) where (==) :: MVar# s a -> MVar# s a -> Bool a == b = isTrue# (sameMVar# a b) instance Eq (TVar# s a) where (==) :: TVar# s a -> TVar# s a -> Bool a == b = isTrue# (sameTVar# a b) instance Eq (StableName# a) where (==) :: StableName# a -> StableName# a -> Bool a == b = isTrue# (eqStableName# a b) }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12708#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler