On Oct 2, 2012, at 8:43 PM, Koen van der Drift <koenvanderdr...@gmail.com> wrote:
> > On Oct 2, 2012, at 6:19 PM, Koen van der Drift <koenvanderdr...@gmail.com> > wrote: > >> >> On Oct 2, 2012, at 6:07 PM, davel...@mac.com wrote: >> >>> I can't speak to the other examples since I haven't seen them, but the >>> __block specifier is necessary if your block modifies the variable (your >>> block does modify i). Your example also seems a bit strange since your for >>> loop modifies i itself. >> >> Ha, yes you are right, that was a quick copy-paste error. I of course want >> something like: sum += i ;-) >> >> I didn't know about the part when a block modifies a variable. That makes >> sense, thanks. > > Alright, I got it to work. > > Now, of course I am not just doing a simple addition in the loop, I create > objects, set some of their properties, do some calculations with them, and > add them to an array. Some of the objects are from my own project, but some > of them are from a 3rd party framework. Should I add the __block to all the > properties of these objects as well? I can do that for the objects from my > own project, but the objects from the other framework are not ARC (my project > is), and I get a crash at the dealloc method for these. > > Is there a way to solve this? > > Thanks again, > > - Koen. Only variables that are being modified by the block need to be declared with the __block specifier. You shouldn't be declaring the underlying instance variables as __block. You can mix and match ARC and non-ARC code. Google should help you figure out how to do that as I can't give specific instructions off the top of my head. Dave _______________________________________________ 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
