#include<iostream>
using namespace std; 
//myPointerToClassVariable2.cpp
class Base
{
public: 
double sal; 
void foo_method(double);

}; 
void Base::foo_method(double d1)
{
	cout<<"\n value of d1 is "<< d1; 

}
double Base::*dptr1 = &Base::sal;
void( Base::*funcPtr1)(double)=&Base::foo_method; 
class Der1:public Base
{
	public:
	//declaring pointer to sal
	void foo(double dx)
	{
		Base base;
		base.*dptr1 = dx;
	cout<<"\n 	base.*dptr1 " << base.*dptr1; 
	cout<<"\n  pointer to a base class member function ";
	     (base.*funcPtr1)(dx); 
	}
};
int main()
{
	// creating instance of a delegating class
	Der1 der1;
	double d1 = 450.25; 
	der1.foo(d1); 
	return 0;
}