December 2004
Beginner
936 pages
20h 1m
English
Content preview from Sams Teach Yourself C++ in 21 Days , Fifth Edition
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Day 5. Organizing into Functions
Although object-oriented programming has shifted attention from functions and toward objects, functions nonetheless remain a central component of any program. Global functions can exist outside of objects and classes, and member functions (sometimes called member methods) exist within a class and do its work.
Today, you will learn
• What a function is and what its parts are
• How to declare and define functions
• How to pass parameters into functions
• How to return a value from a function
You’ll start with global functions today, and tomorrow you’ll see how functions work from within classes and objects as well.
What Is a Function?
A function is, in effect, a subprogram that can act on data and return a value. ...
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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.