4.9: Types of Inheritance

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Hybrid (Virtual) Inheritance: Hybrid Inheritance is implemented by combining more than one type of inheritance. For example: Combining Hierarchical inheritance and Multiple Inheritance.
Below image shows the combination of hierarchical and multiple inheritance:

Classes A and C inherit from class B, while classes D and F inherit from class E. Classes B and E, in turn, inherit from class G

// C++ program for Hybrid Inheritance 
#include <iostream> 
using namespace std; 

// base class  
class Vehicle  
{ 
  public: 
    Vehicle() 
    { 
      cout << "This is a Vehicle" << endl; 
    } 
}; 

//base class 
class Fare 
{ 
    public: 
       Fare() 
    { 
        cout<<"Fare of Vehicle\n"; 
    } 
}; 

// first child class  - only inherits from Vehicle
class Car: public Vehicle 
{
    public:
    Car()
    {
        cout << "Driving my car" << endl;
    }  
  
}; 

// second child class - inherits from BOTH Vehicle and Fare
class Bus: public Vehicle, public Fare 
{
    public:
    Bus()
    {
        cout << "Riding the bus" << endl;
    }  
      
}; 
  
// main function 
int main() 
{    
    // creating object of the chcild class will 
    // invoke the constructor of base class - BOTH Vehicle and Fare
    Bus obj2; 
    
    // creating a car object would NOT
    // invoke the constructor for Fare

    return 0; 
}

Output:

This is a Vehicle
Fare of Vehicle
Riding the bus

Notice that if we were to create an Car object that the Fare constructor is NOT called.

Contributed by Harsh Agarwal
Geeks for Geeks