test_pointers.py 文件源码

def test_pointer_type_name(self):
        LargeNamedType = type('T' * 2 ** 25, (Structure,), {})
        self.assertTrue(POINTER(LargeNamedType))

        # to not leak references, we must clean _pointer_type_cache
        from ctypes import _pointer_type_cache
        del _pointer_type_cache[LargeNamedType]