December 2010
Beginner to intermediate
320 pages
10h 3m
English
Content preview from Learning the iOS 4 SDK for JavaScript ProgrammersBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 7. C Language Fundamentals
The C programming language may date back to 1972, but it is very much alive today in both its original form and in many object-oriented languages based on it, such as C++, C#, and Objective-C. The Objective-C used in the iOS SDK is not a different language from C, but rather a large set of extensions to C. You can use C syntax and constructions within any Objective-C program, blending the old and the new, even in the same statement. Additionally, parts of the Cocoa Touch set of frameworks—parts you will use frequently—rely on C constructions. Therefore, it is vital that you have a firm footing in C, especially those facets that permeate iOS app development.
This chapter intentionally does not show you everything about the C
language. Some language features—especially data collections—are better
served in their Objective-C-based Cocoa Touch forms, and are therefore
reserved for the next chapter. Rather than burden you with C language
niceties you will rarely, if ever, use in app development, this chapter hits
the things you really need to know. You also get the benefit of learning
where C is identical to what you already know from JavaScript and where
you’ll have to adapt some of your existing JavaScript experience to the C
world. From time to time I will supply code snippets to insert into the
runMyCode: method of the Workbench app so you can see firsthand how the language feature works. I also encourage you to experiment with variations of what ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.