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 allow user-defined types to work with them.

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