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Understanding Automatic Reference Counting in Objective-C


Automatic Reference Counting (ARC) largely removes the burden of manual memory management, not to mention the chore of tracking down bugs caused by leaking or over-released objects! Despite its awesomeness, ARC does not let you ignore memory management altogether.

This post covers the following key aspects of ARC to help you get up and running quickly.
  • Reference Counted Memory: Quick Revision
  • How Automatic Reference Counting Works
  • Enabling ARC in Your Project
  • New Rules Enforced by ARC
  • ARC Qualifiers – Declared Properties
  • ARC Qualifiers – Regular Variables
  • Migrating Existing Projects to ARC
  • Including Code that is not ARC Compliant
  • Should I Use ARC?
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