Hi and thank you so much for this, I’ve been trying to get rid of that warning for ages!
> On 16 Jun 2016, at 16:47, じょいすじょん <[email protected]> wrote: > > If you're using NS_ASSUME_NONNULL > you can get away with: > withError:(NSError *__nullable*) > > It's an outError (out parameter) which in C parlance is a pointer to a > pointer. > By convention it is a pointer to a pointer declared as NSError type but set > to nil. > It's easy to forget, so I keep a snippet in Xcode triggered by the keyword > outError to fill it in for me. > > My snippet predates things a bit and might be overkill with > error:(out NSError * __nullable __autoreleasing * __nullable)outError > > But I copied it from Apple frameworks, I believe NSFileManager, some time > back. > The second nullable means you can just pass nil meaning you don't want the > error back at all, though that's probably fallen out of fashion. > out is as I recall just a helper to the compiler. _______________________________________________ Do not post admin requests to the list. They will be ignored. Xcode-users mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/xcode-users/archive%40mail-archive.com This email sent to [email protected]
