Adding null values to array in Objective-C - ios

Question

In a swift project I was able to do this easily. I have an array of CLLocationCoordinate2D's and CLLocationDistances
Here is the swift code (inside a PFQuery) It works just fine
if let returnedLocation = object["location"] as? PFGeoPoint
{
let requestLocation = CLLocationCoordinate2DMake(returnedLocation.latitude, returnedLocation.longitude)
self.locations.append(requestLocation)
let requestCLLocation = CLLocation(latitude: requestLocation.latitude, longitude: requestLocation.longitude)
let driverCLLocation = CLLocation(latitude: location.latitude, longitude: location.longitude)
let distance = driverCLLocation.distanceFromLocation(requestCLLocation)
self.distances.append(distance/1000)
}
When I try to add them in Objective C to the locations and distance arrays I get an error because I'm adding an object without a pointer. What would be the best way to get around this? Thank you
Objective C code (they're both NSMutableArrays)
if (object[#"driverResponded"] == nil) {
NSString *username = object[#"username"];
[self.usernames addObject:username];
PFGeoPoint *returnedLocation = object[#"location"];
CLLocationCoordinate2D requestLocation = CLLocationCoordinate2DMake(returnedLocation.latitude, returnedLocation.longitude);
//FIX!
[self.locations addObject:requestLocation];
CLLocation *requestCLLocation = [[CLLocation alloc]initWithLatitude:requestLocation.latitude longitude:requestLocation.longitude];
CLLocation *driverCLLocation = [[CLLocation alloc]initWithLatitude:location.latitude longitude:location.longitude];
CLLocationDistance distance = [driverCLLocation distanceFromLocation:requestCLLocation];
[self.distances addObject:distance/1000];
}

Answer 1

You can do this to store it as a CLLocationCoordinate doing this:
CLLocationCoordinate2D new_coordinate = CLLocationCoordinate2DMake(returnedLocation.latitude, returnedLocation.longitude);
[self.locations addObject:[NSValue valueWithMKCoordinate:new_coordinate]];
Pull it back out like this:
CLLocationCoordinate2D coordinate = [[self.locations objectAtIndex:0] MKCoordinateValue];