justin + arc   6

PLWeakCompatibility
Do you like ARC but need to support older OSes? Do you contemplate dropping support for Mac OS X 10.6 or iOS 4 just so you can use __weak? Good news! Now you can use __weak on those older OSes by just dropping a file into your project and adding a couple of compiler flags.
arc  cocoa  ios  objective-c 
8 weeks ago by justin
objective c - ARC and bridged cast - Stack Overflow
Great description of the ARCs __bridge casts
arc  ios 
january 2012 by justin

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