Function glib_sys::g_test_add_vtable

pub unsafe extern "C" fn g_test_add_vtable(
    testpath: *const c_char, 
    data_size: size_t, 
    test_data: gconstpointer, 
    data_setup: GTestFixtureFunc, 
    data_test: GTestFixtureFunc, 
    data_teardown: GTestFixtureFunc
)