ARC - The meaning of __unsafe_unretained? - Stack Overflow 2011年12月21日 - Just want to make sure that I got it right: Do I need to ... The LLVM Compiler 3.0 introduces four new ownership qualifiers: __strong ...
Unsafe at Any Speed | Big Nerd Ranch 作者:Mark Dalrymple - 2012年10月4日 - __unsafe_unretained . That sounds pretty scary. It's a new symbol added by ARC that's used to decorate pointers. It pops up in Xcode's ...
unsafe_unretained vs weak : crash during setDelegate 2012年12月12日 - I have some doubts about unsafe_unretained and weak keywords: as a .... instead of weak; for variables you should use __unsafe_unretained ...
objective c - strong / weak / retain / unsafe_unretained ... 2012年3月20日 - weak (iOS4 = unsafe_unretained) - the same thing as assign, no retain or release ... For variables, you need to use __unsafe_unretained:
objective c - Differences between weak and ... 2012年6月20日 - So I had a project that supported iOS 4, so all my IBOutlets were __unsafe_unretained even IBOutlets that were in the nib but outside the ...
What are the new type qualifiers introduced with ARC? 2011年10月31日 - __unsafe_unretained and __weak are similar in the sense that the address of ... Except the when the object is deallocated the weak pointer is ...
Generic typeof for weak self references - Stack Overflow 2012年6月5日 - I am trying to figure out a way to use typeof to create a weak reference to self .... __weak myWeakReference; MyClass * __unsafe_unretained ...
objective c - NSArray of weak references to objects under ... 2012年2月17日 - I need to store weak references to objects in an NSArray, in order to ... Note that I need to support iOS 4.x, thus the __unsafe_unretained ...
Transitioning to ARC Release Notes - Apple Developer 2013年8月8日 - Weak references are not supported in OS X v10.6 and iOS 4. .... __unsafe_unretained specifies a reference that does not keep the referenced ...
Big Nerd Ranch Books • View topic - unsafe_unretained vs weak For declared properties, you should use assign instead of weak; for variables you should use __unsafe_unretained instead of __weak.