October 2011
Beginner to intermediate
1200 pages
35h 33m
English
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Shared Friends
Another use for friends is when a function needs to access private data in two separate classes. Logically, such a function should be a member function of each class, but that’s impossible. It could be a member of one class and a friend to the other, but sometimes it’s more reasonable to make the function a friend to both. Suppose, for example, that you have a Probe class that represents some sort of programmable measuring device and an Analyzer class that represents some sort of programmable analyzing device. Each has an internal clock, and you would like to be able to synchronize the two clocks. You could use something along the following lines:
class Analyzer; // forward declarationclass Probe{ friend void sync(Analyzer ...
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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.