On Oct 15, 2011, at 8:20 PM, Roland King wrote: > I don't think I want either __bridge_transfer or __bridge_retained, the > former is for passing things back to obj-c classes and the latter I believe > effectively transfers ownership and would require an extra CFRelease() which > isn't going to happen, I don't want to transfer ownership, the dictionary > will take its own ownership.
If you are familiar with retain/release logic then you may find that CFBridgingRetain() and CFBridgingRelease() make more sense than __bridge_transfer and __bridge_retained. CFBridgingRetain() converts id to void* and retains it. You must balance it with a subsequent CFRelease() or CFBridgingRelease(). Let ARC do what it wants with the id side. CFBridgingRelease() converts void* to id and releases it. You must balance it with a prior CFRetain() or CFBridgingRetain() or CFCreate(). Let ARC do what it wants with the id side. __bridge cast converts id to void* or void* to id with no retain count changes. -- Greg Parker gpar...@apple.com Runtime Wrangler _______________________________________________ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
