pub unsafe extern "C" fn xthal_compare_and_set(
addr: *mut c_int,
test_val: c_int,
compare_val: c_int,
) -> c_intpub unsafe extern "C" fn xthal_compare_and_set(
addr: *mut c_int,
test_val: c_int,
compare_val: c_int,
) -> c_int