December 2013
Beginner
656 pages
16h 42m
English
Content preview from Exploring C++ 11, Second Edition
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EXPLORATION 60
Moving Data with Rvalue References
In Exploration 39, I introduced std::move() without explaining what it really does or how it works. Somehow it moves data, such as a string, from one variable to another, instead of copying the string contents, but you must be wondering how it works its wonders. The function itself is surprisingly simple. The concepts that underlie that simple implementation are more complicated, which is why I have waited until now to introduce the complexities and subtleties involved.
Temporary Objects
Historically, temporary objects could be the source of much unnecessary copying of data. For example, suppose ...
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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.