From: Paul Zimmermann <Paul.Zimmermann@inria.fr>
To: newlib@sourceware.org
Subject: regression in Newlib 4.2.0
Date: Sat, 05 Feb 2022 06:30:12 +0100 [thread overview]
Message-ID: <mwbkzlc23f.fsf@tomate.loria.fr> (raw)
Hi,
another regression in Newlib 4.2.0 (with 4.1.0 the largest error for tgammaf
was 239 ulps according to
https://members.loria.fr/PZimmermann/papers/accuracy.pdf):
Checking tgamma with newlib-4.2.0.20211231
MPFR library: 4.1.0
MPFR header: 4.1.0 (based on 4.1.0)
Checking function tgammaf with MPFR_RNDN
libm wrong by up to 1.55e+26 ulp(s) [18446744073709551615] for x=-0x1.000002p-65
tgamma gives -inf
mpfr_tgamma gives -0x1.fffffcp+64
Total: errors=2967689031 (69.37%) errors2=2773050476 maxerr=1.55e+26 ulp(s)
Paul
next reply other threads:[~2022-02-05 5:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-05 5:30 Paul Zimmermann [this message]
-- strict thread matches above, loose matches on Subject: below --
2022-02-04 4:36 Paul Zimmermann
2022-02-09 14:27 ` Andoni Arregi
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