Program illustrating function overloading

# include<iostream.h>
# include<conio.h>
int area(int side)
{
	return side*side;
}
int area(int l , int b)
{
	return l*b;
}

void main()
{
clrscr();
int (*p1)(int);
int (*p2)(int,int);

p1=area;
p2=area;

cout<<"Address of area(int)="<<(unsigned int)p1<<endl;
cout<<"Address of area(int,int)="<<(unsigned int)p2<<endl;

cout<<"Invoking area(int) via p1 "<<p1(20)<<endl;
cout<<"Invoking area(int,int) via p2 "<<p2(10,20);
getch();
}