#9368: Add strictly accumulating scanl' to Data.List -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: feature | Status: new request | Milestone: Priority: normal | Version: 7.8.3 Component: Core | Keywords: Libraries | Architecture: Unknown/Multiple Resolution: | Difficulty: Easy (less than 1 Operating System: | hour) Unknown/Multiple | Blocked By: Type of failure: | Related Tickets: #9345 None/Unknown | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by thomie): * status: patch => new Comment: {{{ commit d45693a5384460d22a6437b9cda463b4ec4b6a37 Author: David Feuer <> Date: Tue Oct 7 20:51:25 2014 +0200 Make scanl fuse; add scanl' Summary: Make scanl a good producer and a good consumer for fold/build fusion. Add strictly-accumulating scanl', which is required for Data.List.inits. Reviewers: nomeata, austin Reviewed By: austin Subscribers: spacekitteh, thomie, carter, ezyang, simonmar Differential Revision: https://phabricator.haskell.org/D314 GHC Trac Issues: #9356 }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9368#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler