reference counting in ios with xcode

Question

There are so many questions on ARC & Reference Counting. I am unable to understand difference between ARC concept & reference counting technique.I have created an application in ios4 .In ios4 there is no ARC concept so programmer has to take care of memory when releasing objects using reference counting.If programmer forget to release objects when created an application in ios4 if same application is run in ios5 what happens to unreleased objects?

Tomasz Zabłocki · Accepted Answer · 2012-10-23 11:10:00Z

1

It will behave exactly the same as on iOS4 - it will leak. ARC is just a compiler feature that inserts retain/release/autorelease calls for you during compilation.

You can read about ARC concept here: Apple doc

answered Oct 23, 2012 at 11:10

Tomasz Zabłocki

1,3267 silver badges14 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Marwyetah · Accepted Answer · 2012-10-23 12:42:31Z

0

With ARC, the compiler automatically inserts retain, release and autorelease in the program. However, ARC works only for objective-C objects. A good tutorial for ARC can be found here: http://www.raywenderlich.com/5677/beginning-arc-in-ios-5-part-1

answered Oct 23, 2012 at 12:42

Marwyetah

912 bronze badges

Collectives™ on Stack Overflow

reference counting in ios with xcode

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related