August 2002
Beginner
1122 pages
22h 1m
English
Content preview from C++: A Dialog Programming with the C++ Standard LibraryBecome 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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Hiding Unnecessary Information from the class User
That rule applies only to functions that are accessible to the user of the polymorphic object. The GetType function is intended for use only in the implementation of the polymorphic object, not by its users; therefore, it is not only possible but desirable to keep it “hidden” by declaring it inside one of the worker classes. Because the user never creates an object of any of the worker classes directly, declaring a function in one of those classes has much the same effect as making it a private member function. As we have already seen, hiding as many implementation details as possible helps to improve the robustness of our programs.
I should also mention the different data types for member variables ...
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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.
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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.