Question

I set up my viewcontrollerA as a singleton. In a viewcontrollerA.h I have:

@property (nonatomic, assign) NSNumber* showCommentOrCreate;

In viewcontrollerB.m I have:

PhotoViewController* sharedSingleton = [PhotoViewController sharedManager];
sharedSingleton.showCommentOrCreate = [NSNumber numberWithInt:2];

In my viewcontrollerB.m I have:

 PhotoViewController* sharedSingleton = [PhotoViewController sharedManager];
NSLog(@"num %ld", (long)sharedSingleton.showCommentOrCreate);

The problem is that for whatever value I set in this way [NSNumber numberWithInt:whole number], I always get a number which isn’t the number I have set:

e.g. 2013-01-24 19:42:24.936 Splash-it[870:907] num 475536752

Does anyone know why?

Answer 1

Because you’re printing the pointer to the NSNumber object, and not the integer value stored in it.