May 2012
Intermediate to advanced
768 pages
14h 39m
English
Content preview from Sams Teach Yourself C++ in One Hour a Day, Seventh 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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Lesson 3. Using Variables, Declaring Constants
Variables are tools that help the programmer temporarily store data for a finite amount of time. Constants are tools that help the programmer define artifacts that are not allowed to change.
In this lesson, you find out
• How to use C++11 keywords auto and constexpr
• How to declare and define variables and constants
• How to assign values to variables and manipulate those values
• How to write the value of a variable to the screen
What Is a Variable?
Before you actually explore the need and use of variables in a programming language, take a step back and first see what a computer contains and how it works.
Memory and Addressing in Brief
All computers, smart phones, and other programmable devices ...
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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.