#8637: Infix declaration on operators ending on backslash ----------------------------+---------------------------------------------- Reporter: | Owner: jcristovao | Status: new Type: bug | Milestone: Priority: normal | Version: 7.7 Component: Compiler | Operating System: Linux Keywords: | Type of failure: GHC rejects valid program Architecture: x86_64 | Test Case: (amd64) | Blocking: Difficulty: Unknown | Blocked By: | Related Tickets: | ----------------------------+---------------------------------------------- Hi, I was trying the latest GHC Head (version 7.7.20131227), when I noticed a regression. I don't know if this is intended behaviour or not. This compiled ok under 7.6.3 {{{ (?&&\) :: (Monoid a) => a -> (a -> Bool) -> a (?&&\) value f = if f value then value else mempty infixl 1 ?&&\ }}} Under 7.7, the infixl declaration only works if I double escape it. {{{ infixl 1 ?&&\\ }}} Is this intended? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8637 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler