Explain virtual base classes, C/C++ Programming

Assignment Help:

Virtual Base Classes

This ambiguity can be resolved if the class derived have only one copy of the class base. This can be done by making the base class a virtual class. This keyword makes the two classes share a one copy of their base class . It can be done as follows :

                class base

                 {

                                :

                                :

                 };

class  Aclass : virtual public base

                 {

                                :

                                :

                 };

 

                class  Bclass : virtual public base

                 {

                                :

                                :

                 };

 

                class  derived : public Aclass, public Bclass

                 {

                                :

                                :

                 };

This will resolve the ambiguity included.

 


Related Discussions:- Explain virtual base classes

File IO, I''m trying to write a function that prints the substring if it is...

I''m trying to write a function that prints the substring if it is found in the string, and after it prints it deletes it from the string so i could print the next substring if it

Area Under Curve, Write a program to find the area under the curve y = f(x)...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

PLS URGENT HELP WITH C++, Pls i only need help with program 2. #include ...

Pls i only need help with program 2. #include #include using namespace std; int main() { int FilingStatus; cout cout cout cout cout cout

Padovan string, A Padovan string P(n) for a natural number n is defined as:...

A Padovan string P(n) for a natural number n is defined as: P(0) = ‘X’ P(1) = ‘Y’ P(2) = ‘Z’ P(n) = P(n-2) + P(n-3), n>2 where + denotes string concatenation. For a string of t

Flow chart, obtain two numbers from thekey board,and determain and display(...

obtain two numbers from thekey board,and determain and display(if either)is the larger of two numbers.

Difference between mutex and binary semaphore, Semaphore is used to synchro...

Semaphore is used to synchronize processes. whereas mutex is used to give synchronization among threads running in the similar process.

Write function that take array as argument, Write a function that takes an ...

Write a function that takes an array as the argument and returns the second largest element. Bonus (+5): Write a function that takes an array and a number n as arguments and return

Program in rpeanut that fills the graphics display, Write a program that co...

Write a program that counts from 0 to 99 and prints these numbers to the terminal ie it prints 00, 01, 02, 03, 04, 05, ....,99. Graphics 1. Write a program in rPeANUt that

Destructor, Destructor: The purpose of destructor is to free the memory...

Destructor: The purpose of destructor is to free the memory when the compiler memory is reduced or not enough to execute certain program. Sometimes there may several objects op

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd