Function pamoja_pid_update 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pamoja_pid_update(
    pid: *mut PamojaPid,
    setpoint: f32,
    measurement: f32,
    dt: f32,
) -> f32

Advances a PID controller by one step.

dt is the time since the previous step, in the unit the integral and derivative gains assume; one at or below zero, or not a finite number, skips the integral and derivative. A setpoint or measurement that is not a finite number is ignored and the previous output returned.

Returns

The control output, or NaN if pid is null.

Safety

pid must be a live handle from a PID constructor, or null.