#9345: Data.List.inits is extremely slow -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: bug | Status: new Priority: normal | Milestone: 7.8.4 Component: | Version: 7.8.3 libraries/base | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Easy (less than 1 Unknown/Multiple | hour) Type of failure: Runtime | Blocked By: performance bug | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by dfeuer): That's a neat idea. If I'm not mistaken, `seq` in the argument to `build` leads to a proof obligation to justify the safety of the fusion. Do you have a proof? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9345#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler