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| author | Joseph Myers <joseph@codesourcery.com> | 2015-02-26 12:57:21 +0000 |
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| committer | Joseph Myers <joseph@codesourcery.com> | 2015-02-26 12:57:21 +0000 |
| commit | 524ae9ea2e3ae9f5bf5d655595fda827e9dc50a1 (patch) | |
| tree | 363ab7a9bab473dc18c22b1179d8b549d8497f80 /NEWS | |
| parent | 23d43090e0b275e47e09e859823e965a1eb323dc (diff) | |
| download | glibc-524ae9ea2e3ae9f5bf5d655595fda827e9dc50a1.tar.gz glibc-524ae9ea2e3ae9f5bf5d655595fda827e9dc50a1.tar.xz glibc-524ae9ea2e3ae9f5bf5d655595fda827e9dc50a1.zip | |
Fix ldbl-128ibm ilogbl near powers of 2 (bug 18029).
The ldbl-128ibm implementation of ilogbl produces incorrect results when the high part of the argument is a power of 2 and the low part a nonzero number with the opposite sign (and so the returned exponent should be 1 less than that of the high part). For example, ilogbl (0x1.ffffffffffffffp1L) returns 2 but should return 1. (This is similar to (fixed) bug 16740 for frexpl, and bug 18030 for logbl.) This patch adds checks for that case. Tested for powerpc. [BZ #18029] * sysdeps/ieee754/ldbl-128ibm/e_ilogbl.c (__ieee754_ilogbl): Adjust exponent of power of 2 down when low part has opposite sign. * math/libm-test.inc (ilogb_test_data): Add more tests.
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/NEWS b/NEWS index db6c5f122c..75e83e0a17 100644 --- a/NEWS +++ b/NEWS @@ -12,7 +12,7 @@ Version 2.22 4719, 14841, 13064, 14094, 15319, 15467, 15790, 15969, 16560, 16783, 17269, 17523, 17569, 17588, 17792, 17836, 17912, 17916, 17932, 17944, 17949, 17964, 17965, 17967, 17969, 17978, 17987, 17991, 17996, 17998, - 17999, 18019, 18020. + 17999, 18019, 18020, 18029. * Character encoding and ctype tables were updated to Unicode 7.0.0, using new generator scripts contributed by Pravin Satpute and Mike FABIAN (Red |