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POWhy does XCode show the wrong object address in the debugger window?
 

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    <p>My application tested whether my selectedViewController was equal to my moreNavigationController.</p> <pre><code>if( self.tabBarController.moreNavigationController == self.tabBarController.selectedViewController ) { // do something awesome. } else { NSLog(@"No match"); } </code></pre> <p>The expression always evaluated false, so I started debugging. I put a breakpoint in the code and hovered my pointer over 'self', which caused the yellow cascading popup where I could see the addresses of both Controllers. The addresses were the same in the popup, which must be incorrect since the if statement failed. I see the same result in the debugger window.</p> <p>I added these logging statements later, which revealed that the objects had 2 different addresses.</p> <pre><code>NSLog([NSString stringWithFormat:@"%d",(self.tabBarController.moreNavigationController)] ); NSLog([NSString stringWithFormat:@"%d",(self.tabBarController.selectedViewController)] ); </code></pre> <p>Why did the debugger window lie? Specifically, does anyone know what value it displays as its address, and why the controllers would show the same address?</p>
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    1. COI rewrote the if statement to the following, but I'm still curious about the debugger. if( self.tabBarController.selectedIndex >= 4 && [[self.tabBarController viewControllers] count] > 5)
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