Question

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

    _testObject = [[TestObject alloc] init];

    NSLog(@"_testObject rc = %d", _testObject.retainCount);
    NSLog(@"testObject rc = %d", self.testObject.retainCount);
}

And testObject is

@property (retain) TestObject *testObject;

Why is the output of these NSLog() 1 and 2, respectively? The retainCount of a property and the underlying object is different?

Answer 1

I’m guessing that it’s because your property isn’t defined as nonatomic, so you’re getting a retained/autoreleased object. Try changing your property declaration to this:

@property (retain, nonatomic) TestObject *testObject;