Sams Teach Yourself C++ in One Hour a Day, 9th Edition

Lesson 12

Operator Types and Operator Overloading

In addition to encapsulating data and methods, a class can also ­encapsulate operators that make it easy to operate on instances of the class. You can use these operators to perform operations such as ­assignment or addition on class objects similar to those on integers that you saw in Lesson 5, “Working with Expressions, Statements, and Operators.” Just like functions, operators can also be overloaded.

In this lesson, you learn:

• ■   The keyword operator

• ■   Unary and binary operators

• ■   Conversion operators

• ■   The move ­assignment operator

• ■   Operators that cannot be redefined

What Are Operators in C++?

On a syntactical level, there is very little that differentiates an operator from a ...