Chapter 3. Objective-C
Once upon a time, a man named Brad Cox decided that it was time for the world to move toward a more modular programming style. C was a popular and powerful language. Smalltalk was an elegant untyped object-oriented language. Starting with C, Brad Cox added Smalltalk-like classes and message-sending mechanisms. The result, Objective-C, is a very simple extension of the C language. In fact, Objective-C was originally simply a C preprocessor and a library.
Objective-C is not a proprietary language. Rather, it is an open standard that has been included in the Free Software Foundation’s GNU C compiler (gcc) for many years. Cocoa was developed using Objective-C, and most Cocoa programming is done in Objective-C.
Teaching C and basic ...
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