November 2012
Beginner
480 pages
12h 18m
English
book
Learning Objective-C 2.0: A Hands-on Guide to Objective-C for Mac and iOS Developers, Second Edition
by Robert Clair
Content preview from Learning Objective-C 2.0: A Hands-on Guide to Objective-C for Mac and iOS Developers, Second EditionBecome 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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18. A Few More Things
This chapter covers three small items that are new with Mountain Lion and Xcode 4.4. They are enums with a fixed underlying type and some type checking, the elimination of the need for forward declarations for methods in the @implementation section of a class, and a new piece of documentation that will help you keep track of when new Objective-C features were added to the language and what versions of OS X and iOS support those new features.
Enums with a Fixed Underlying Type
Standard C language enumeration constants or enums (see Chapter 1, “C, the Foundation of Objective-C”) are a way of giving human-readable names to a set of integer constants.
typedef enum{ soup, pasta, chicken, cake} foods;...foods mainCourse ...
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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.