Its just making it clear that these are unretained. Make a #define to make it
nice and clean like. But they are saying to make an objective C class mostly
for people who do manual retain/releases in a struct so that its automatic.
Finally, NSDictionary doesn't support that - but CFDictionary does. We use that
all the time. Its nice and neat. Just
insertedSections = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, 0,
&kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue(insertedSections, (void*)sectionIndex, section);
etc...
On Oct 30, 2011, at 12:32 PM, James Merkel wrote:
> The document on ARC talks about problematic C structs like:
>
> struct x { NSString *S; int X; } StaticArray[] = {
> @"foo", 42,
> @"bar, 97,
> ...
> };
>
> I use that pattern quite a bit in my code and haven't had any problems with
> it. These are basically constant strings that never change.
>
> With ARC, the compiler wants me to change the code to:
>
> struct x { __unsafe_unretained NSString *S; int X; }
>
> Aside from this looking really ugly, will the App store accept this in an
> application?
>
> The document on ARC says in order to do this task correctly, the code should
> be changed to a class. Ok, what class are they talking about?
>
> I don't see how the collection classes like NSDictionary or NSArray support
> this. Do they mean create your own collection class to do this?
>
> Thanks for any insight on this.
>
> Jim Merkel
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