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| author | Joseph Myers <joseph@codesourcery.com> | 2015-04-08 17:14:12 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2015-04-08 17:14:12 +0000 |
| commit | ae63c7ebedcaa57017df4cb8ff0494a4705321ee (patch) | |
| tree | 4f2b413430bffe2a9c5354c5bd4e731106d7b832 /NEWS | |
| parent | d5856d06c3ef62907f2865c502ada4baf3c9efa1 (diff) | |
| download | glibc-ae63c7ebedcaa57017df4cb8ff0494a4705321ee.tar.gz glibc-ae63c7ebedcaa57017df4cb8ff0494a4705321ee.tar.xz glibc-ae63c7ebedcaa57017df4cb8ff0494a4705321ee.zip | |
Fix dbl-64 atan in non-default rounding modes (bug 18197).
The dbl-64 implementation of atan does computations that expect to run in round-to-nearest mode, and in other modes the errors can accumulate to more than the maximum accepted 9ulp. This patch makes it use FE_TONEAREST internally, similar to other functions with such issues. Tested for x86_64 and x86; no ulps updates needed. [BZ #18197] * sysdeps/ieee754/dbl-64/s_atan.c: Include <fenv.h>. (atan): Set FE_TONEAREST mode for internal computations. * math/auto-libm-test-in: Add more tests of atan. * math/auto-libm-test-out: Regenerated.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/NEWS b/NEWS index d36fed56b2..b6776bcc69 100644 --- a/NEWS +++ b/NEWS @@ -15,7 +15,7 @@ Version 2.22 17836, 17912, 17916, 17930, 17932, 17944, 17949, 17964, 17965, 17967, 17969, 17978, 17987, 17991, 17996, 17998, 17999, 18019, 18020, 18029, 18030, 18032, 18036, 18038, 18039, 18042, 18043, 18046, 18047, 18068, - 18080, 18093, 18100, 18104, 18110, 18111, 18128, 18138, 18185. + 18080, 18093, 18100, 18104, 18110, 18111, 18128, 18138, 18185, 18197. * A powerpc and powerpc64 optimization for TLS, similar to TLS descriptors for LD and GD on x86 and x86-64, has been implemented. You will need |