C++ Pure Virtual Function and Virtual Base Class

Virtual, as the name implies, is something that exists in effect but not in reality. The concept of virtual function is the same as a function, but it does not really exist although it appears in needed places in a program. The object-oriented programming language C++ implements the concept of virtual function as a simple member function, like all member functions of the class.

In this C++ Tutorial you will learn about Scope of Variables in Function viz Local Variables - Scope of Local Variables, Global Variables - Scope of Global Variables.

In this C++ tutorial, you will learn about function passing types, two types of arguments passing in functions - passed by value and passed by reference are discussed here.

In this C++ Tutorial you will learn about Concept of Function with Arguments - What is an argument Declaring a function, Function Definition and Calling the function.

In this C++ Tutorial you will learn about concepts of function - What is a function? Features of Function, Declaring a Function, Defining a function and Calling the function