October 2020
Beginner to intermediate
464 pages
8h 17m
English
Content preview from C Programming For Dummies, 2nd Edition
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Chapter 16
Variable Nonsense
IN THIS CHAPTER
Changing variable types
Using typedef to create new variables
Making static variables
Creating a global variable
Working with structures and functions
Exploring enumerated constants
You have more to learn about C language variables than knowing the keywords int, char, float, and double. Yes, I’m including signed, unsigned, long, and anything else you may already know in that list. The reason is that the variable is a big part of C. Choosing the right data type and using it properly can make or break a program.
Variable Control
That which is called a variable by any other name would still be a variable. That is, unless you mess with the variable’s data type in your code by changing it into another type, giving it a new name altogether, or casting a spell upon the variable to meet your needs, benevolent or not.
Typecasting into disbelief ...
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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.
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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.