Re: Guidelines on using NSJSONSerialization
Re: Guidelines on using NSJSONSerialization
- Subject: Re: Guidelines on using NSJSONSerialization
- From: Uli Kusterer <email@hidden>
- Date: Sun, 22 Apr 2012 13:51:05 +0200
On 19.04.2012, at 19:39, Fritz Anderson wrote:
> This confuses me. MKMapView.annotations is an NSArray. How can an NSArray be nil-terminated? It has a count and there's no way to index into it that would return anything but an object. There's no need and no way to terminate it.
>
> (...) If, however, jAnnotations is an NSArray, the method should be able to detect that its contents are not of the supported type. The method shouldn't crash.
It could be a CFArrayRef. CFArrayRef can handle *any* kind of pointer for its values, if you give it the right callbacks, and it's toll-free-bridged to NSArray. Of course, if you try to get an object out of it and it actually contains something else (like a struct pointer), it'll still crash.
Cheers,
-- Uli Kusterer
"The Witnesses of TeachText are everywhere..."
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