Add explanatory comment to `valid_rt_signal_num`
@@ -28,6 +28,7 @@ fn SIGRTMAX() -> c_int {
unsafe { __libc_current_sigrtmax() }
}
+/// Verifies that a realtime signal number is valid (enclosed within the OS's limits).
fn valid_rt_signal_num(num: u8) -> bool {
(num as c_int) + SIGRTMIN() <= SIGRTMAX()
}
