> On May 23, 2015, at 8:18 AM, Scott Ribe <scott_r...@elevated-dev.com> wrote: > > DEADBEEF is what some memory debugging utilities write over memory it's > freed. If it’s showing in your isa pointer, then you’re accessing an object > which has been dealloc’d. >
This is probably the main one I was remembering. It looks like it has been used for memory as you suggest. This though https://en.wikipedia.org/wiki/Magic_number_%28programming%29 <https://en.wikipedia.org/wiki/Magic_number_(programming)> mentions that it is… > also used in the original Mac OS <https://en.wikipedia.org/wiki/Mac_OS> > operating systems <https://en.wikipedia.org/wiki/Operating_system> I thought it was file magic and was thinking it’s use even pre-dated Mac’s. There were, I thought, a couple others as well but my memory is probably not the best going back that far. Michael Hall _______________________________________________ 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
