Re: [GHC] #10190: Add a Monad instance for ((,) w)

#10190: Add a Monad instance for ((,) w) -------------------------------------+------------------------------------- Reporter: fumieval | Owner: fumieval Type: feature request | Status: patch Priority: normal | Milestone: 7.12.1 Component: libraries/base | Version: Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by Herbert Valerio Riedel ): In [changeset:"9db005a444722e31aca1956b058e069bcf3cacbd/ghc"]: {{{ #!CommitTicketReference repository="ghc" revision="9db005a444722e31aca1956b058e069bcf3cacbd" Add Monad instance for `((,) a)` (#10190) This was proposed a couple of times in the past, e.g. - https://mail.haskell.org/pipermail/libraries/2011-November/017153.html - https://mail.haskell.org/pipermail/libraries/2013-July/020446.html but its implementation had been blocked by the fact that `Monoid` wasn't in scope where the `Monad` class was defined. Since the AMP/FTP restructuring this is no longer the case. }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10190#comment:9 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler