On 22/09/2009, at 10:40 PM, BareFeet wrote:
2. Does addObject: and insertObject: actually just get the whole array, add the extra object, then write the whole array back to the instance variable? I thought it would be more efficient than that.
Not sure why you think this is inefficient, especially. An array in this context is just a pointer to the array object - fetching the "whole array" doesn't move anything, it just returns the pointer. "Writing back" means what exactly? Doing a retain/release? That also doesn't move or copy anything - it's super-cheap. If the array is copied along the way there may be some overhead but it may not be all that much.
--Graham _______________________________________________ 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
