Book Image

The C++ Workshop

By : Dale Green, Kurt Guntheroth, Shaun Ross Mitchell
Book Image

The C++ Workshop

By: Dale Green, Kurt Guntheroth, Shaun Ross Mitchell

Overview of this book

C++ is the backbone of many games, GUI-based applications, and operating systems. Learning C++ effectively is more than a matter of simply reading through theory, as the real challenge is understanding the fundamentals in depth and being able to use them in the real world. If you're looking to learn C++ programming efficiently, this Workshop is a comprehensive guide that covers all the core features of C++ and how to apply them. It will help you take the next big step toward writing efficient, reliable C++ programs. The C++ Workshop begins by explaining the basic structure of a C++ application, showing you how to write and run your first program to understand data types, operators, variables and the flow of control structures. You'll also see how to make smarter decisions when it comes to using storage space by declaring dynamic variables during program runtime. Moving ahead, you'll use object-oriented programming (OOP) techniques such as inheritance, polymorphism, and class hierarchies to make your code structure organized and efficient. Finally, you'll use the C++ standard library?s built-in functions and templates to speed up different programming tasks. By the end of this C++ book, you will have the knowledge and skills to confidently tackle your own ambitious projects and advance your career as a C++ developer.
Table of Contents (15 chapters)

Logical Operators

Logical operators allow us to evaluate multiple Boolean values together in a single statement. We've seen previously that when we evaluate a condition, such as in an if statement, we end up with a Boolean value. We can, therefore, use logical operators to combine and evaluate two or more conditions at one time.

We have three such operators available to us:

  • AND (&&): This returns true when both conditions are true, and false otherwise.
  • OR (||): This returns true when either condition is true, and false otherwise.
  • NOT (!): This returns true if the condition is false, and true otherwise; essentially, it returns the opposite of the condition.

Let's take a look at how these operators work using an example.

Exercise 24: Logical Operators Example

To demonstrate how these logical operators work, let's create a quick example application. We'll take a number of inputs from the user, perhaps some names, and ...