#15622: Generalize `E{0,1,2,3,6,9,12}` from `Data.Fixed` -------------------------------------+------------------------------------- Reporter: rockbmb | Owner: rockbmb Type: feature request | Status: new Priority: normal | Milestone: 8.6.1 Component: Core Libraries | Version: 8.4.3 Resolution: | Keywords: base, | Data.Fixed 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 Ashley Yakeley): 1. The time library uses Fixed, so I'm not sure the Hackage search was good? 2. As written, the proposed change eliminates non-base-10 Fixed. Are we sure we want to do that? 3. If we're considering breaking changes to Data.Fixed, the more urgent need (imo) is to generalise the representation type, which is currently hard-coded as Integer. Touching both points 2 and 3, [https://en.wikipedia.org/wiki/Q_(number_format) Q formats] are fixed- point with a given number of fractional lower bits. It would be useful to be able to represent these. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/15622#comment:14 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler