Wasn't there a very recent commit to improve these functions, by leftaroundabout?
On Thursday, August 2, 2018 8:16:10 AM EDT Artem Pelenitsyn wrote: > Here is the patch: https://phabricator.haskell.org/D5034 > > -- > Best, Artem > > On Thu, 2 Aug 2018 at 06:26 Artem Pelenitsyn <a.pelenit...@gmail.com> wrote: > > > I'd be willing to do this. > > > > -- > > Best wishes, > > Artem > > > > > > On Thu, 2 Aug 2018, 04:38 Matt Peddie, <mped...@gmail.com> wrote: > > > >> Thanks, Ben, for chiming in. I think calling out to C for these > >> functions is the way to go if it's now feasible. (Calling out to libm > >> is the workaround I'm using in the application that led me to discover > >> the inaccuracy.) > >> > >> Matt > >> > >> On Thu, Aug 2, 2018 at 11:33 AM, Ben Gamari <b...@smart-cactus.org> wrote: > >> > Matt Peddie <mped...@gmail.com> writes: > >> > > >> >> Hi George, > >> >> > >> >> Not a stupid question. I don't have a single source at hand, but I > >> >> think I read in a few places on the wiki that calling out to the > >> >> system math library is not an option due to the variety of system math > >> >> libraries on the platforms GHC supports. It'd be great if I got the > >> >> wrong impression and this could just be a call to C. Can anyone set > >> >> me straight on this point? > >> >> > >> > Indeed it's not a stupid question at all. Indeed this is precisely what > >> > we do for the simpler transcendentals (e.g. sin, asin, log). We very > >> > well could move in this direction in the case of asinh/atanh as well. I > >> > believe the reason we don't currently is that atanh was only > >> > standardized in C99, which we only started requiring a few releases ago. > >> > Perhaps this is ultimately the right direction. > >> > > >> > Cheers, > >> > > >> > - Ben > >> _______________________________________________ > >> ghc-devs mailing list > >> ghc-devs@haskell.org > >> http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs > >> > > > -- David Feuer Well-Typed _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/ghc-devs
