How do you write a base class in C++?

base (C# Reference) The base keyword is used to access members of the base class from within a derived class : Call a method on the base class that has been overridden by another method. Specify which base-class constructor should be called when creating instances of the derived class.

Parent class is the class being inherited from, also called base class. Child class is the class that inherits from another class, also called derived class .

So, the short answer to your question: C++ doesn’t have a base-class because, having parametric polymorphism through templates, it doesn’t need to.

Syntax 1: class B : virtual public A { }; Syntax 2: class C : public virtual A { }; Note: virtual can be written before or after the public. Now only one copy of data/function member will be copied to class C and class B and class A becomes the virtual base class.

Definitions: A class that is derived from another class is called a subclass (also a derived class, extended class, or child class). The class from which the subclass is derived is called a superclass (also a base class or a parent class).

Techopedia Explains Base Class A class derived from a base class inherits both data and behavior. For example, “vehicle” can be a base class from which “car” and “bus” are derived . Cars and buses are both vehicles, but each represents its own specialization of the vehicle base class.29 Ağu 2011

The class whose members are inherited is called the base class, and the class that inherits those members is called the derived class .