#15354: QuantifiedConstraints not fully described in manual -------------------------------------+------------------------------------- Reporter: goldfire | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.6.1 Component: Documentation | Version: 8.5 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: -------------------------------------+------------------------------------- As pointed out in comment:4:ticket:15351, the section in the manual on `-XQuantifiedConstraints` says that an `=>` is essential in a quantified constraint. However, the following is accepted: {{{#!hs class C a foo :: (forall x. C x) => () foo = () }}} Note that there is no `=>` in the quantified constraint. We need to update the manual accordingly. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15354 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler