May 2014
Beginner
1312 pages
38h 36m
English
Content preview from Programming: Principles and Practice Using C++, 2nd EditionBecome 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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4. Computation
“If it doesn’t have
to produce correct results,
I can make it arbitrarily fast.”
—Gerald M. Weinberg
This chapter presents the basics of computation. In particular, we discuss how to compute a value from a set of operands (expression), how to choose among alternative actions (selection), and how to repeat a computation for a series of values (iteration). We also show how a particular sub-computation can be named and specified separately (a function). Our primary concern is to express computations in ways that lead to correct and well-organized programs. To help you perform more realistic computations, we introduce the vector type to hold sequences of values.
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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.