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| author | Mark Dickinson <dickinsm@gmail.com> | 2008-07-15 21:55:23 (GMT) |
|---|---|---|
| committer | Mark Dickinson <dickinsm@gmail.com> | 2008-07-15 21:55:23 (GMT) |
| commit | 62764566e8892233d0408368d6760bd710b1c504 (patch) | |
| tree | fd65e39c3cbee3ae90c4af8fa4787a26efb6f72a /Lib/test/test_float.py | |
| parent | 2affb40e70808c3613708ab2e360b5070e1583f7 (diff) | |
| download | cpython-62764566e8892233d0408368d6760bd710b1c504.zip cpython-62764566e8892233d0408368d6760bd710b1c504.tar.gz cpython-62764566e8892233d0408368d6760bd710b1c504.tar.bz2 | |
Fix float.from_hex tests. It appears that Linux/ia64 doesn't like
computing 2.0**-1074 accurately. Using ldexp(1.0, -1074) should be
safer.
Diffstat (limited to 'Lib/test/test_float.py')
| -rw-r--r-- | Lib/test/test_float.py | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Lib/test/test_float.py b/Lib/test/test_float.py index 254dd37..3f4998d 100644 --- a/Lib/test/test_float.py +++ b/Lib/test/test_float.py @@ -362,10 +362,10 @@ class HexFloatTestCase(unittest.TestCase): self.fail('%r not identical to %r' % (x, y)) def test_ends(self): - self.identical(self.MIN, 2.**-1022) - self.identical(self.TINY, 2.**-1074) - self.identical(self.EPS, 2.**-52) - self.identical(self.MAX, 2.*(2.**1023 - 2.**970)) + self.identical(self.MIN, ldexp(1.0, -1022)) + self.identical(self.TINY, ldexp(1.0, -1074)) + self.identical(self.EPS, ldexp(1.0, -52)) + self.identical(self.MAX, 2.*(ldexp(1.0, 1023) - ldexp(1.0, 970))) def test_invalid_inputs(self): invalid_inputs = [ |