test_parameters.py 文件源码

def test_byref_pointer(self):
        # The from_param class method of POINTER(typ) classes accepts what is
        # returned by byref(obj), it type(obj) == typ
        from ctypes import c_short, c_uint, c_int, c_long, pointer, POINTER, byref
        LPINT = POINTER(c_int)

        LPINT.from_param(byref(c_int(42)))

        self.assertRaises(TypeError, LPINT.from_param, byref(c_short(22)))
        if c_int != c_long:
            self.assertRaises(TypeError, LPINT.from_param, byref(c_long(22)))
        self.assertRaises(TypeError, LPINT.from_param, byref(c_uint(22)))