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authorMark Dickinson <dickinsm@gmail.com>2009-12-27 16:16:02 (GMT)
committerMark Dickinson <dickinsm@gmail.com>2009-12-27 16:16:02 (GMT)
commit4c96035f3361d50a6bf40557f04d45244af3dec9 (patch)
tree13c7cd61b0c8ab8623d3b8fa938352e38afc7689 /Lib/test/test_long_future.py
parent465728364749e903fb4293b2f7a266b58de6bde4 (diff)
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Use ldexp(q, exp) instead of q*2.**exp in true division test, to avoid bogus failures on platforms with broken pow (e.g., Ubuntu/ia64).
Diffstat (limited to 'Lib/test/test_long_future.py')
-rw-r--r--Lib/test/test_long_future.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/Lib/test/test_long_future.py b/Lib/test/test_long_future.py
index 25462bf..f863d52 100644
--- a/Lib/test/test_long_future.py
+++ b/Lib/test/test_long_future.py
@@ -5,6 +5,7 @@ from __future__ import division
import sys
import random
+import math
import unittest
from test.test_support import run_unittest
@@ -46,7 +47,7 @@ def truediv(a, b):
if 2*r > b or 2*r == b and q % 2 == 1:
q += 1
- result = float(q) * 2.**exp
+ result = math.ldexp(float(q), exp)
return -result if negative else result
class TrueDivisionTests(unittest.TestCase):