Re: C arrays as __block variables
Re: C arrays as __block variables
- Subject: Re: C arrays as __block variables
- From: Matt Neuburg <email@hidden>
- Date: Sun, 27 Jun 2010 08:43:33 -0700
- Thread-topic: C arrays as __block variables
>>> In the example I listed below, I have a __block variable inside a block that
>>> is fixed length array and I can access it via NSLog(@"char %c", array1[0]);
Sure, but I'm talking about a __block variable declared outside the block:
int arr[1];
^(){ arr[0];}; // compile error
__block int arr[1];
^(){ arr[0]; }; // compile error!
I think b.bum has explained this thoroughly; the workaround is:
struct {int arr[1];} str;
^(){ str.arr[0];};
And now it can be made writable with __block as expected:
__block struct {int arr[1];} str;
^(){ str.arr[0]=1;};
I would suggest the docs be a bit more forthcoming about this, unless it's
documented and I just didn't spot it. Thx all - m.
--
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