> On Jul 12, 2017, at 2:03 PM, Greg Parker <gpar...@apple.com> wrote: > > The benefit of the autoreleasing convention comes when you can return an > unretained value without a retain/autorelease pair, because you "know" that > the object will live long enough for the callee to use it. This does in fact > avoid lots of retain/release pairs in carefully written code.
Yes, this is what I was referring to. I’d forgotten that ARC won’t do this, because it has to guarantee safety. In my pre-ARC code I routinely did this, and only ran into problems with it a handful of times, so I felt it was a valuable optimization (especially in the early 2000s when CPUs were slower.) —Jens _______________________________________________ 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
