Float Values

[Ovidius]

I have a float value in a custom class (named DrawingLayer) declared as:

float totalTimeDifference;
@property(readwrite, assign) float totalTimeDifference;

I also synthesize it with:

@synthesize totalTimeDifference;

The class named DrawingLayer is an MKMapViewDelegate. I do some operations on this float value in the didUpdateUserLocation method:

NSTimeInterval difference = [userLocation.location.timestamp timeIntervalSinceDate:lastUserLocation.timestamp];
self.totalTimeDifference = self.totalTimeDifference + (float)difference;

It works well, I can output the float to a label in the application, so I know it gets incremented (and works).

However, in a separate method of the DrawingLayer class, I try to output this float value to the NSLog:

NSLog(@"The total time difference is: %f.", self.totalTimeDifference);

When I try to output it, the float value is always 0.000000! Am I not setting its property correctly? I'm not sure what the problem is. Can someone please help me out and tell me what is going on here? I haven't got the slightest clue! I don't get why it works in one method, but not this one. Does it get retained locally or something!? I need to pass this value to a method in another class, so I really need to be able to get its float value!

[RLScott]

Are you sure that both references are to the same instance of DrawingLayer?

[Ovidius]

Originally Posted by RLScott

Are you sure that both references are to the same instance of DrawingLayer?

Yep. I mean, DrawingLayer is only initialized and allocated once, so it has to be referring to the same exact object! - if that's what you mean.

[RLScott]

Is it possible that some code is resetting the value to zero?.

[Ovidius]

Originally Posted by RLScott

Is it possible that some code is resetting the value to zero?.

Oh, man...that's exactly what was happening...@#$% I spent like three hours trying to figure it out, thinking it was something complicated...thanks so much! I'm sorry I started this thread...I feel like a complete nooblet.