Static variables inside member functions are initialized only once, static variables therefore keep the state of the variable in repeated calls.
aa On May 19, 2010, at 6:37 PM, Graham Cox wrote: > > On 20/05/2010, at 7:35 AM, Abhinay Kartik Reddyreddy wrote: > >> everytime you ask for a uniqueInstance it looks like it retrieves a new >> instance not the existing instance... since you set the uniqueinstance to >> nil inside that function, your function will discard the previous instance >> if any and then create a new instance. Singleton is supposed to return >> existing instance if any and if none create one. >> >> Also i guess the scope of your static is local. >> >> correct me if i am wrong. > > > OK then I will. > > static NSObject* something = nil; > > does not repeatedly set the variable 'something' to nil every time the method > is entered. It sets it once when the app starts. Once the variable is > assigned, it stays assigned. Check up on what 'static' means, don't guess and > give advice based on that incorrect guess. > > --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
