Operator overloading allows operators like + and << to be used with user-defined types like classes. It is done by defining corresponding operator functions like operator+() and operator<<(). This allows objects to be used with operators in a natural way while providing custom behavior for that type. The rules for overloading include maintaining precedence and associativity of operators. Common operators like +, -, *, /, <<, >>, ==, =, [] and () can be overloaded to extend the behavior of classes.

1. Overloading Operators

6. Binary Operators that Can Be Overloaded

8. Overloading Operators— The Rules

10. Overloading Math Operators Ex8-1

12. Overloading Math Operators

17. The Sale Class Ex8-4

19. Program that Adds Three Sale Objects Ex8-4

26. Overloaded Operator>>() Function for the Sale Class

27. Overloading Input Ex8-6

29. Using the Prefix and Postfix ++ Operators with an Integer

30. The Inventory Class

37. The Book Class Ex8-10

38. Overloading [ ] and ( )

40. Using the Parentheses Operator