#13520: instance Alternative ZipList -------------------------------------+------------------------------------- Reporter: Iceland_jack | Owner: (none) Type: feature request | Status: closed Priority: normal | Milestone: 8.4.1 Component: libraries/base | Version: 8.0.1 Resolution: fixed | Keywords: newcomer Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D3416 Wiki Page: | -------------------------------------+------------------------------------- Comment (by Iceland_jack): Cale from `#haskell` points out the following: {{{ <Cale> Iceland_jack: I think it probably ought to be the one which uses Semigroup's (<>) to combine corresponding elements. <Cale> Iceland_jack: Then you can recover the instance there by using the First semigroup }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13520#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler