Date: Tue, 10 Jul 2012 10:14:23 -0600 From: Warner Losh <imp@bsdimp.com> To: David Schultz <das@FreeBSD.ORG> Cc: Peter Jeremy <peter@rulingia.com>, freebsd-current@FreeBSD.ORG, Steve Kargl <sgk@troutmask.apl.washington.edu> Subject: Re: Use of C99 extra long double math functions after r236148 Message-ID: <7A095700-AA58-4DB1-B5D7-8F6B7934AC8B@bsdimp.com> In-Reply-To: <20120710151115.GA56950@zim.MIT.EDU> References: <4FC40DEA.8030703@missouri.edu> <20120529000756.GA77386@troutmask.apl.washington.edu> <4FC43C8F.5090509@missouri.edu> <20120529045612.GB4445@server.rulingia.com> <20120708124047.GA44061@zim.MIT.EDU> <210816F0-7ED7-4481-ABFF-C94A700A3EA0@bsdimp.com> <20120708233624.GA53462@troutmask.apl.washington.edu> <4FFBF16D.2030007@gwdg.de> <2A1DE516-ABB4-49D7-8C3D-2C4DA2D9FCF5@bsdimp.com> <4FFC412B.4090202@gwdg.de> <20120710151115.GA56950@zim.MIT.EDU>
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On Jul 10, 2012, at 9:11 AM, David Schultz wrote: > On Tue, Jul 10, 2012, Rainer Hurling wrote: >> On 10.07.2012 16:02 (UTC+2), Warner Losh wrote: >>>=20 >>> On Jul 10, 2012, at 3:10 AM, Rainer Hurling wrote: >>>> As far as I understand from discussions on R mailing list=20 >>>> (r-devel@r-project.org), they plan to reduce the emulation and/or=20= >>>> workaround of long and complex math functions for FreeBSD and other=20= >>>> systems with their next releases of R devel. So we could really = need some=20 >>>> progress with our C99 conform math functions ;-) >>>=20 >>> Not having R would be a bit pain in my backside. That's one of the=20= >>> practical considerations that I was talking about. It is very real, = and=20 >>> if I have to, I'll commit the #define junk I railed against to get = it=20 >>> back. Please, let's get some progress. I have some time to help. >>=20 >> Yes, thank you Warner, that is also my problem. As I wrote some weeks=20= >> ago (05/28/2012) when starting this thread, I am using FreeBSD as a=20= >> scientific desktop because of its good scaling properties. For some=20= >> years now, FreeBSD fits all our needs with R, SAGA GIS, PostgreSQL = and=20 >> some more. >>=20 >> If I would not be able to run upcoming versions of R on FreeBSD any=20= >> more, that would be really, really hard :-( >=20 > Do you have a list of the essential functions here? There are 17 long > double functions and some complex functions missing, but only a > handful of those are of general interest. The reason I ask is that if > R is just looking for a few missing functions that are already mostly > implemented, then the best solution is probably to finish that work. > But if it's expecting us to have something arcane like long double > Bessel functions of the first kind, then we need to pursue a = workaround > in the short term. I'll get a list, but they are things like long long double exp and ln. = I don't think they were the Bessel functions. Warner
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