#13593: Unexpected behavior from Data.List.groupBy -------------------------------------+------------------------------------- Reporter: dsf | Owner: (none) Type: task | Status: new Priority: normal | Milestone: Component: Core Libraries | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Documentation | Unknown/Multiple bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): Well, my plan was just to point this out for `groupBy` (see Phab:D3475), but I suppose you are right that this theme applies to many of the `*By` functions. Frankly, Haskell's core library documentation is often accused of being too sparse, so I don't consider a bit (perhaps slightly repetitious) detail to be a problem. However, if we did want to avoid repeating ourselves we could just add a general discussion of the expectations of the `By` functions to the documentation at the head of the module. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13593#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler