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8 GNU Objective-C Features

This document is meant to describe some of the GNU Objective-C features. It is not intended to teach you Objective-C. There are several resources on the Internet that present the language.

GNU Objective-C runtime API:   
Executing code before main:   
Type encoding:   
Garbage Collection:   
Constant string objects:   
Fast enumeration:   
Messaging with the GNU Objective-C runtime: