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| author | Joseph Myers <joseph@codesourcery.com> | 2014-01-02 16:33:06 +0000 |
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| committer | Joseph Myers <joseph@codesourcery.com> | 2014-01-02 16:33:06 +0000 |
| commit | 396e3ecf3e8f0f05bd7eeaf995a3f0c2327a6cd6 (patch) | |
| tree | ec6423e6d30d9344e775ce5d6011a60306eb99d2 /wcsmbs | |
| parent | 6c8dbf00f536d78b1937b5af6f57be47fd376344 (diff) | |
| download | glibc-396e3ecf3e8f0f05bd7eeaf995a3f0c2327a6cd6.tar.gz glibc-396e3ecf3e8f0f05bd7eeaf995a3f0c2327a6cd6.tar.xz glibc-396e3ecf3e8f0f05bd7eeaf995a3f0c2327a6cd6.zip | |
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.
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