Date: Mon, 10 Oct 2005 20:02:02 +0000 (UTC) From: Bruce Evans <bde@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/lib/msun/src e_rem_pio2f.c Message-ID: <200510102002.j9AK22KQ047392@repoman.freebsd.org>
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bde 2005-10-10 20:02:02 UTC
FreeBSD src repository
Modified files:
lib/msun/src e_rem_pio2f.c
Log:
Fixed range reduction near (but not very near) medium-sized multiples
of pi/2 (1 line) and expand a comment about related magic (many lines).
The bug was essentially the same as for the +-pi/2 case (a mistranslated
mask), but was smaller so it only significantly affected multiples
starting near +-13*pi/2. At least on amd64, for cosf() on all 2^32
float args, the bug caused 128 errors of >= 1 ulp, with a maximum error
of 1.2393 ulps.
Revision Changes Path
1.11 +18 -3 src/lib/msun/src/e_rem_pio2f.c
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