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check possible recursive _as_parameter_ to prevent segfault (closes #1838)

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Benjamin Peterson 2011-03-26 17:56:28 -05:00
parent b8a5769a6d
commit 8d6c62dd89
5 changed files with 43 additions and 2 deletions
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12
Lib/ctypes/test/test_as_parameter.py
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@ -187,6 +187,18 @@ class BasicWrapTestCase(unittest.TestCase):
self.assertEqual((s8i.a, s8i.b, s8i.c, s8i.d, s8i.e, s8i.f, s8i.g, s8i.h),
(9*2, 8*3, 7*4, 6*5, 5*6, 4*7, 3*8, 2*9))
def test_recursive_as_param(self):
from ctypes import c_int
class A(object):
pass
a = A()
a._as_parameter_ = a
with self.assertRaises(RuntimeError):
c_int.from_param(a)
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
class AsParamWrapper(object):