On Aug 29, 2011, at 7:20 AM, Thomas Davie wrote: > I'm not really very clear on how ARC and CF types are meant to interact yet, > because of that I've managed to create some buggy code, could someone have a > quick stare at this and tell me what I've misunderstood that's causing a > segfault when adding to the mutable set:
Given "id foo" and "CFTypeRef bar": // assign bar to foo without making any implicit change to bar – traditional toll free bridging foo = (__bridge id)bar; // consume bar to create an ARC managed reference in foo – replaces foo = (id)bar; [foo release]; foo = (__bridge_transfer id)bar; // retain foo and manage it as a non-ARC reference – replaces bar = (CFTypeRef)[foo retain]; bar = (__bridge_retain CFTypeRef)foo; -- David Duncan _______________________________________________ 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
