IBOutlet and viewDidUnload under ARC

Question

There is a similar question to this on SO here, however I just want to clarify something that wasn\'t fully explained there.

I understand that all delegates and outlets

Answer 1

I have some empirical evidence to support that IBOutlets are indeed already set to nil automatically. Here's what I did:

1. I set up explicit ivars for my IBOutlet properties (@synthesize myLabel = myLabel_) so that I may later inspect their values in the debugger.
2. I enabled a breakpoint on the first line of viewDidUnload.
3. I arranged for viewDidUnload to get called by simulating a memory warning.
4. I inspected the values of the explicit ivars that I associated with my IBOutlet properties.

The explicit ivars all had nil as their value then I hit the breakpoint.