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krisselden/gist:447557b3235da375e1b6

Created June 19, 2014 23:10
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gistfile1.m
#define WEAKIFY(x) __weak typeof(x)weak_##x = x
#define STRONGIFY(x) __strong typeof(weak_##x)x = weak_##x
MyViewController * __block myController = [[MyViewController alloc] init…];
// ...
WEAKIFY(myController);
myController.completionHandler = ^(NSInteger result) {
STRONGIFY(myController);
[myController dismissViewControllerAnimated:YES completion:nil];
};
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