Settings default value to float variable

Asked Nov 29 '12 at 20:57

Active Nov 29 '12 at 21:15

Viewed 380 times

I'm developing a location based app and I'm using the following code (which works perfectly) to retrieve the location of the user. However, I would like to set a default value to the longitude and latitude in case the user turned off location services.

I tried self.latitude = 0; but the app crashes. latitude and longitude are variables of type float. Ideally I want to set them to a default value of (0,0).

So basically: how can I set a default value for a variable of type float?

Thanks for your help.

- (void)locationManager:(CLLocationManager *)manager didUpdateToLocation:(CLLocation    *)newLocation fromLocation:(CLLocation *)oldLocation
{
    self.latitude = newLocation.coordinate.latitude;
    self.longitude = newLocation.coordinate.longitude;
    SVGeocoder *geocodeRequest = [[SVGeocoder alloc] initWithCoordinate:newLocation.coordinate];
    [geocodeRequest setDelegate:self];
    [geocodeRequest startAsynchronous];
    //   NSLog(@"lat:%f,long:%f",self.latitude,self.longitude);

    [self.locationMgr stopUpdatingLocation];
}

edited Nov 29 '12 at 21:15

asked Nov 29 '12 at 20:57

Stefany Willey

how did you define latitude and longitude? – jimpic Nov 29 '12 at 21:00
What is the error message when the app crashes? – rmaddy Nov 29 '12 at 21:03
I defined latitude and longitude this way :float latitude; float longitude; – Stefany Willey Nov 29 '12 at 21:07
then remove the "self." in front of both. – jimpic Nov 29 '12 at 21:14
@jimpic not if they're properties. but if they're simple ivars, yes. – Rob Nov 29 '12 at 21:15
1

@StefanyWilley You need to [set an exception breakpoint](http://stackoverflow.com/questions/4961770/run-stop-on-objective-c-exception-in-xcode-4) and trigger the crash. Then copy the stack trace, edit your post, and paste it in. – rob mayoff Nov 29 '12 at 21:15
1

Please refrain from using ALL CAPS in the future. – Nov 29 '12 at 21:15
I tried removing the self it didn't work. Same error, I'm getting SIGABRT – Stefany Willey Nov 29 '12 at 21:23
Isn't there a simple way to set a default value for longitude and latitude? – Stefany Willey Nov 29 '12 at 21:27
The simple way is just to assign zero (or whatever default you want). If it didn't work, you need to post the code where you tried to set the default, and you need to post the stack trace of the crash, and you need to post any messages that showed up in the debug console. – rob mayoff Nov 30 '12 at 00:04
i asume you have another error, nothing to do with latitude = 0; – AlexWien Nov 30 '12 at 02:05
in ARC, the default value should be 0 anyway. – Yariv Nissim Feb 01 '13 at 08:36

Settings default value to float variable

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