Mercurial > cpython-lru_cache-weakref

diff Lib/test/test_long_future.py @ 57945:eb0bbaba0361 legacy-trunk

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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).
author Mark Dickinson <dickinsm@gmail.com>
date Sun, 27 Dec 2009 16:16:02 +0000
parents c4e60988834d
children ad7e4141a3eb
line wrap: on
line diff
--- a/Lib/test/test_long_future.py	Sun Dec 27 14:55:57 2009 +0000
+++ b/Lib/test/test_long_future.py	Sun Dec 27 16:16:02 2009 +0000
@@ -5,6 +5,7 @@
 
 import sys
 import random
+import math
 import unittest
 from test.test_support import run_unittest
 
@@ -46,7 +47,7 @@
     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):