Question

Why wont this output 5 to the console? It is outputting 0?!

settingsData.sensitivitySettingValue is an NSNumber defined in a model class.

- (void)viewDidLoad
{
    [super viewDidLoad];

    float five = 5;

    settingsData.sensitivitySettingValue = [NSNumber numberWithFloat:five];

    float someFloat = [settingsData.sensitivitySettingValue floatValue];

    NSLog(@"%f", someFloat);

}

Can’t understand it!

Answer 1

I’ll bet settingsData is nil, so when you send it the sensitivitySettingValue you get nil back, and when you send that nil the floatValue, you get nil back.