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| author | Carlos O'Donell <carlos@redhat.com> | 2013-06-03 14:49:48 -0400 |
|---|---|---|
| committer | Carlos O'Donell <carlos@redhat.com> | 2013-06-03 14:49:48 -0400 |
| commit | 8b0ccb2d7fd1ec646a622a16bd64e356739ffca3 (patch) | |
| tree | b7500d0f98c33e9fa91366fc95ef456eff692d15 /ChangeLog | |
| parent | 3b3c4d40c18e0e340c68a02487014d0001211382 (diff) | |
| download | glibc-8b0ccb2d7fd1ec646a622a16bd64e356739ffca3.tar.gz | |
BZ #15536: Fix ulp for 128-bit IBM long double.
In 128-bit IBM long double the precision of the type
decreases as you approach subnormal numbers, equaling
that of a double for subnormal numbers. Therefore
adjust the computation in ulp to use 2^(MIN_EXP - MANT_DIG)
which is correct for FP_SUBNORMAL for all types.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -1,3 +1,11 @@ +2013-06-03 Carlos O'Donell <carlos@redhat.com> + + [BZ #15536] + * math/libm-test.inc (MAX_EXP): Remove + (MIN_EXP): Define. + (ulp): Use MIN_EXP - MANT_DIG. + (check_ulp): Verify subnormal ulps. Only allow a range of +/- 1 ulp. + 2013-05-31 Carlos O'Donell <carlos@redhat.com> * po/be.po: Revert last change. |