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Cocoa/CoreFoundation Bridging Explained

RemObjects Blogs – “Bridging” is a new language feature introduced to Objective-C alongside ARC, that i believe is not very widely understood, at least not fully. Cocoa always had the ability to “toll-free bridge” between Cocoa objects, such as NSString and their underlying non-object-oriented CoreFoundation equivalents, like CFStringRef. Before ARC, you could just cast back and forth between them as you pleased, but ARC made the rules a bit stricter, and Objective-C introduced new “bridge casts” to formally express these toll-free bridge casts in an ARC-safe manner. Oxygene ...
Favorite? Off-Topic? marc @ 2013-04-02 17:17


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