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 9. Exploiting References
Yesterday, you learned how to use pointers to manipulate objects on the free store and how to refer to those objects indirectly. References, the topic of today’s lesson, give you almost all the power of pointers but with a much easier syntax.
Today, you will learn
• What references are
• How references differ from pointers
• How to create references and use them
• What the limitations of references are
• How to pass values and objects into and out of functions by reference
What Is a Reference?
A reference is an alias; when you create a reference, you initialize it with the name of another object, the target. From that moment on, the reference acts as an alternative name for the target, and anything you do to the ...
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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.