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-rw-r--r--numpy/core/tests/test_umath.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/numpy/core/tests/test_umath.py b/numpy/core/tests/test_umath.py
index 1245030a4..3f2601150 100644
--- a/numpy/core/tests/test_umath.py
+++ b/numpy/core/tests/test_umath.py
@@ -397,6 +397,9 @@ class TestLdexp(TestCase):
self._check_ldexp('i')
self._check_ldexp('l')
+ @dec.knownfailureif(sys.platform == 'win32' and sys.version_info < (2, 6),
+ "python.org < 2.6 binaries have broken ldexp in the "
+ "C runtime")
def test_ldexp_overflow(self):
imax = np.iinfo(np.dtype('l')).max
imin = np.iinfo(np.dtype('l')).min