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Message-Id: | <200006021200.PAA10793@alpha.netvision.net.il> |
Date: | Fri, 02 Jun 2000 14:59:33 +0200 |
X-Mailer: | Emacs 20.6 (via feedmail 8.1.emacs20_6 I) and Blat ver 1.8.5b |
From: | "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il> |
To: | buers AT gmx DOT de (Dieter Buerssner) |
CC: | djgpp AT delorie DOT com |
In-reply-to: | <8h89js.3vs4im1.0@buerssner-17104.user.cis.dfn.de> |
Subject: | Re: Rounding doubles to ints |
References: | <39363d0a$0$8416$7f31c96c AT news01 DOT syd DOT optusnet DOT com DOT au> <8h67e5 DOT 3vs4im1 DOT 0 AT buerssner-17104 DOT user DOT cis DOT dfn DOT de> <200006011957 DOT WAA01748 AT alpha DOT netvision DOT net DOT il> <8h89js DOT 3vs4im1 DOT 0 AT buerssner-17104 DOT user DOT cis DOT dfn DOT de> |
Reply-To: | djgpp AT delorie DOT com |
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> From: buers AT gmx DOT de (Dieter Buerssner) > Newsgroups: comp.os.msdos.djgpp > Date: 2 Jun 2000 10:27:00 GMT > > Eli Zaretskii wrote: > > >IIRC, the version of `rint' in libm.a rounds correctly in a way that > >doesn't depend on the rounding mode (and without fiddling it). > > rint() depends on the rounding mode, as it should. I now realize that my wording was inaccurate and confusing. Sorry for that. What I meant to say is that it doesn't access the FPU registers to find out the rounding mode, and doesn't change it. > The source code > (that is difficult to understand), seems to do the equivalent of > the three-liner I posted. It's not easy to write code that knows nothing about the FP hardware and still works...
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