#11815: Data.List: Add a function to get consecutive elements (mapConsecutives) -------------------------------------+------------------------------------- Reporter: holmisen | Owner: Type: feature request | Status: new Priority: low | Milestone: Component: libraries/base | Version: 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 nomeata): Thanks. With large lists, `-O2` and `zipConsWith`, there is a significant difference (15% faster). With just `-O`, the difference is smaller (10%), but still there. But the libraries are built with `-O2` anyways. So I’d be in favor of the explicitly recursive variants. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11815#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler