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Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site. How can I choose where windows makes the “System Reserved Partition” during a clean install?
Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Since Apple introduced automatic reference counting back in 2011, never really thought about it, BUT if you see the ARC algorithm and according to apple documentation all objects gets destroyed after some time. And if I see the release video from the WWDC 2011 you can see that this is not a garbage collector. It's a bit of a philosophical question, but essentially, it's a compile-time garbage collector, as a opposed to a run-time garbage collector. Instead of a garbage-collecting subsystem that runs together with the program, the manages the retain count and ensures that all the necessary releases and retains are put in the right place. Since GC uses graph traversal for reachability analysis, it does not care about cycles in a graph: if an object is reachable from some set of objects that are not in the root set, it is still considered garbage and would be collected. Reference counting is much simpler than garbage collection: each object has a reference count shown in the diagram, retain increments it, and release decrements it.
I want to add that a GC typically reviews the whole object graph to find unreachable objects in circular references.

Not the answer you're looking for?Browse other questions tagged ios objective-c algorithm or ask your own question. What is the difference between Objective-C automatic reference counting and garbage collection?
As a new Objective-C developer, what memory-related issues should I watch out for using ARC? Would an encryption scheme that generates an extra key to be securely stored offsite be a safe backdoor?
At what cable length does matching the impedance at the ends of the cable become important?
Automated Reference Counting (ARC) uses reference counting as its underlying mechanism for making decisions about reachability of an object. Therefore, you do not need to worry about retain cycles - a very real problem that you need to always keep in mind when working with reference counting systems. They both serve a common goal of automating resource management, but that is where their similarities end. Calling one a variety of the other does a disservice to programmers who need to program with both (e.g.
If you have a circular reference, this will never be done, the participating objects will never be dealloc'd.

This process is non-deterministic, in the sense that you never know when the GC algorithm is going to run, and when objects that are no longer referenced would be garbage collected. In fact, it is not possible to tell from this diagram alone if we are talking about the new ARC, or a pre-ARC memory management of Cocoa.
Thinking that the two are essentially the same would lead to tiny mistakes that end up being very costly because they are so hard to find. All you know is that they eventually will be garbage collected, but "eventually" may mean a really long time.
Under a reference counting system you know exactly when your object is going to be released - it is going to happen as soon as its reference count reaches zero. Autoreleasing makes this a little less visible to you, because the last reference may be released outside of your code, but that does not make the process non-deterministic.
Moreover, the language lets you take full control over autoreleasing by letting you make your own autorelease pools.

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memory management xbox one

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