Exploring C++20: The Programmer's Introduction to C++

© Ray Lischner 2020

R. LischnerExploring C++20https://doi.org/10.1007/978-1-4842-5961-0_69

69. Multiple Inheritance

Ray Lischner¹ 

(1)

Ellicott City, MD, USA

 

Unlike some other object-oriented languages, C++ lets a class have more than one base class. This feature is known as multiple inheritance. Several other languages permit a single base class and introduce a variety of mechanisms for pseudo-inheritance, such as Java interfaces and Ruby mix-ins and modules. Multiple inheritance in C++ is a superset of all these other behaviors.

Multiple Base Classes

Declare more than one base class by listing all the base classes in a comma-separated list. Each base class gets its own access specifier, as demonstrated here:

class derived : public base1, private base2, ...