def corofunc1():
            called[0] += 1
            return event.ReturnValue(insert_events=[evt2], append_events=[evt])
def test_ccode_constants_mathh():
    assert ccode(exp(1)) == "M_E"
    assert ccode(pi) == "M_PI"
    assert ccode(oo) == "HUGE_VAL"
    assert ccode(-oo) == "-HUGE_VAL"