release method deprecated

Question

When has happen to the release method? I always release a memory allocation when I am done with it and now it seems that the method has been deprecated. Or maybe it does not work for some objects?

Anyway, this is what I did:

Customer *aCustomer = [[Customer alloc] init];
...
[aCustomer release];

and I get an error there... Anyone care to explain why I get an error now that I release my memory? The error message is:

'release' in unavailable: not available in automatic reference counting mode ARC forbids explicit message send of 'release'

With ARC the compiler takes care of retain counts so you don't have to, in fact aren't allowed to. — Andrey Zverev, Jan 30 '12 at 08:35

score 5 · Accepted Answer · edited May 23 '17 at 12:03

5

If you have enabled the 'ARC', then you don't need to release an object. That will be handled by the compiler. retain, release and autorelease are all handled by the compiler.

Edit: You could know more about that from here

Also there already a SO thread exists. Please go thru that.

edited May 23 '17 at 12:03

Community

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answered Jan 30 '12 at 08:32

Ilanchezhian

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Ah, I see... Didn't know that. So I don't really need to use the retain method so often now do I? Do you know where I can read up on this? – Melvin Lai Jan 30 '12 at 10:03
Perfect! Thanks guys for all the effort you have put in :) – Melvin Lai Feb 01 '12 at 01:05

score 1 · Answer 2 · answered Jan 30 '12 at 09:05

1

To manage memory by yourself go to "build settings" and set the flag "Objective-C automatic reference counting" to "No" (it's under "Apple LLVM compiler")

answered Jan 30 '12 at 09:05

daveoncode

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Andrey Zverev · Answer 3 · 2012-01-30T11:15:13.070

Automatic Reference Counting (ARC) for Objective-C makes memory management the job of the compiler. By enabling ARC with the new Apple LLVM compiler, you will never need to type retain or release again, dramatically simplifying the development process, while reducing crashes and memory leaks. The compiler has a complete understanding of your objects, and releases each object the instant it is no longer used, so apps run as fast as ever, with predictable, smooth performance.

- iOS 5 for Developers

Consider using ARC (Automatic Retain Counting) for your project. There is a refactoring that will convert a current project.

release method deprecated

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