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Alex Rivera
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The following code is returning an expression unused warning on the assignment operation in the block. The code isn't very practical, but there is a lot more code in the excluded section and that code has to run on a particular queue. __block NSNumber *pageId=nil; dispatch_sync(_myDispatchQueue, ^{ int val; //... code generates an int and puts it in val pageId = [NSNumber numberWithInt:val]; }]; //pageId used below How do I get rid of this error?
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