C++ How to Program, 10/e

Summary

Section 10.1 Introduction

• C++ enables you to overload most operators to be sensitive to the context in which they’re used— the compiler generates the appropriate code based on the types of the operands.

• One example of an overloaded operator built into C++ is operator <<, which is used both as the stream insertion operator and as the bitwise left-shift operator. Similarly, >> is also overloaded; it’s used both as the stream extraction operator and as the bitwise right-shift operator. Both of these operators are overloaded in the C++ Standard Library.

• C++ overloads + and - to perform differently, depending on their context in integer arithmetic, floating-point arithmetic and pointer arithmetic.

• The jobs performed by overloaded operators ...