- Objective-C Memory Management Essentials
- Gibson Tang Maxim Vasilkov
- 55字
- 2021-07-23 20:09:13
What you need to know about ARC and weak references
Weak references have been supported on GNUstep Objective-C runtime since version 1.5, since version 5 of iOS, and version 10.7 of OS X. ARC works through the compatibility library as well, but it requires modifications of many classes in order to work with weak references.
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