Apple -> global location services access vs app location services access

I have been doing some research on Apple Location services API and have a query as below. If my Settings -> Privacy -> Location services is OFF.

and my app location services is set to "while using" or "allow" and if I want to check the access?

will the below check work for all the combinations of global vs per-app access?

-(BOOL) locationAccess { return ([CLLocationManager respondsToSelector:@selector(authorizationStatus)] && ([CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedWhenInUse || [CLLocationManager authorizationStatus] == kCLAuthorizationStatusAuthorizedAlways)); }

If yes, for the below table, is the output as expected?

Global   per-App.   func call
TRUE    FALSE      TRUE
FALSE   FALSE      FALSE
FALSE   TRUE       FALSE
TRUE    FALSE      FALSE

Please help