dynamic_cast

#include<iostream>
using namespace std;
class Employee 
{
public:
    virtual int salary()=0;
//virtual int bonus()=0;
};


class Manager : public Employee
{
public: 
    virtual int salary()
{
cout<<"Manager salary"<<endl;
return 0;
}
};


class Programmer : public Employee
{
public:
    virtual int salary()
{
cout<<" Programmer salary"<<endl;
return 0;
}
virtual int bonus()
{
cout<<"Programmer bonus"<<endl;
return 0;
}
};


class MyCompany
{
public:
    void payroll(Employee *pe);
    //
};


void MyCompany::payroll(Employee *pe)
{
    //do something
Programmer *pm = dynamic_cast<Programmer *>(pe);
pm->bonus();
}
int main()
{
MyCompany my;
Employee *pe = new Programmer;
my.payroll(pe);
return 0;
}