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| author | Joseph Myers <joseph@codesourcery.com> | 2014-01-02 16:33:06 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2014-01-02 16:33:06 +0000 |
| commit | 396e3ecf3e8f0f05bd7eeaf995a3f0c2327a6cd6 (patch) | |
| tree | ec6423e6d30d9344e775ce5d6011a60306eb99d2 /ChangeLog | |
| parent | 6c8dbf00f536d78b1937b5af6f57be47fd376344 (diff) | |
| download | glibc-396e3ecf3e8f0f05bd7eeaf995a3f0c2327a6cd6.zip glibc-396e3ecf3e8f0f05bd7eeaf995a3f0c2327a6cd6.tar.gz glibc-396e3ecf3e8f0f05bd7eeaf995a3f0c2327a6cd6.tar.bz2 | |
Fix ldbl-128ibm acoshl inaccuracy (bug 16384).
This patch fixes bug 16384, ldbl-128ibm acoshl inaccuracy, which
showed up while attempting to regenerate ulps for powerpc-nofpu for
2.19. There were two separate problems, use of __log1p instead of
__log1pl and an insufficiently accurate constant value for log 2
(which this patch replaces by use of M_LN2l), each of which could
cause substantial inaccuracy in affected cases.
Tested for powerpc-nofpu.
* sysdeps/ieee754/ldbl-128ibm/e_acoshl.c (ln2): Initialize with
M_LN2l.
(__ieee754_acoshl): Use __log1pl not __log1p.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 7 |
1 files changed, 7 insertions, 0 deletions
@@ -1,3 +1,10 @@ +2014-01-02 Joseph Myers <joseph@codesourcery.com> + + [BZ #16384] + * sysdeps/ieee754/ldbl-128ibm/e_acoshl.c (ln2): Initialize with + M_LN2l. + (__ieee754_acoshl): Use __log1pl not __log1p. + 2013-01-02 Ondřej Bílka <neleai@seznam.cz> * malloc/arena.c (malloc_atfork, free_atfork, ptmalloc_lock_all, |