Function pio_value_subsystem_set 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pio_value_subsystem_set(
    value: *const PioValueHandle,
    error: *mut *mut PioError,
) -> *mut PioSubsystemSet

Borrow the value as a PSS/E subsystem description file without copying. The handle holds the module owner alive, so it stays readable after the module handle is released.

Safety

Pointers and handles must satisfy the crate-level safety requirements.