On Jul 27, 2013, at 11:54 , Robert Martin <robmar...@frontiernet.net> wrote:
> But CGImageSourceCreateWithURL() includes the keyword 'create' - so the > object you get back has a retain count of 1. ARC will insist that you cast > with __bridge or __bridge_transfer. ARC isn't involved with the return value in either case. In the first one, it's a scalar, as you noted. In the second, it's a core foundation object, which isn't managed by ARC … … unless the CGImageSourceCreateWithURL is marked (in the SDK) with the attribute that that says it can be managed by ARC (a fairly recent addition to Clang) … … but that wouldn't be it anyway, since there's no cast needed on the return value, let alone a __bridge. On Jul 27, 2013, at 11:31 , Matt Neuburg <m...@tidbits.com> wrote: > The first one compiles (with no explicit __bridge). The second one doesn't; > you must say __bridge explicitly. I tried both your examples in Xcode 4.6.3 and OS X 10.8 SDK, and neither produced an error or a warning. The answer to your question probably depends on: -- the version of Clang you're using -- the particular SDK you're using -- the compiler options you're using _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) 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: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
