Oops, my typo: of course I meant to type 'AVPlayerDemoPlaybackViewControllerRateObservationContext'... a 'N' got in there somehow! :)
On Aug 11, 2011, at 9:18 PM, William Squires wrote: > It's a (pointer) variable whose contents is its own memory address (the '&' > operator.) Because the declaration includes 'static', the compiler simply > pulls the info from the symbol tree so it already knows what a > 'ANPlayerDemoPlaybackViewControllerRateObservationContext' is (it's a 'void > *'), and so there is no recursion (the expression is evaluated at compile > time.) Of course, this doesn't mean this construct is particularly useful > (you might as well set it to NULL as anything else)! > > On Aug 11, 2011, at 6:10 PM, Luther Baker wrote: > >> What is this statement actually doing? >> >> static void *AVPlayerDemoPlaybackViewControllerRateObservationContext = & >> AVPlayerDemoPlaybackViewControllerRateObservationContext; >> >> Isn't the right side evaluated first? But it doesn't yet exist? It compiles >> ... but seems to be a recursive definition?? >> >> http://developer.apple.com/library/ios/#samplecode/AVPlayerDemo/Listings/Classes_AVPlayerDemoPlaybackViewController_m.html#//apple_ref/doc/uid/DTS40010101-Classes_AVPlayerDemoPlaybackViewController_m-DontLinkElementID_8 >> >> Thanks, >> -Luther >> _______________________________________________ >> >> Cocoa-dev mailing list ([email protected]) >> >> Please do not post admin requests or moderator comments to the list. >> Contact the moderators at cocoa-dev-admins(at)lists.apple.com >> >> Help/Unsubscribe/Update your Subscription: >> http://lists.apple.com/mailman/options/cocoa-dev/wsquires%40satx.rr.com >> >> This email sent to [email protected] > _______________________________________________ Cocoa-dev mailing list ([email protected]) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [email protected]
