Virtual function

#include<iostream>

using namespace std;
class Employee{
protected:
    string name;
    float salary;
public:
    Employee(string name, float salary){this->name = name; this->salary = salary;}
    virtual float calculateBonus(){return this->salary;}
    string getName(){return this->name;}

};

class Manager: public Employee{
public:
    Manager(string name, float salary):Employee(name, salary){}
    float calculateBonus(){return this->salary+this->salary*.5;}

};


class SeniorManager: public Employee{
public:
    SeniorManager(string name, float salary):Employee(name, salary){}
    float calculateBonus(){return this->salary+this->salary*.7;}

};

void printBonus(Employee *emp){
    cout<<emp->getName()<<"\t"<<emp->calculateBonus()<<endl;
}

int main(){
Employee e("x", 100);
Manager m("m", 200);
SeniorManager sm("Sr.Mngr", 300);

Employee *ep[3];
ep[0] = &e;
ep[1] = &m;
ep[2] = &sm;

for(int i=0; i<3; i++)
    printBonus(ep[i]);

}