//[] operator Overloading
#include <iostream.h>
#include <process.h>
class matrix
{
private:
	 int mat[4];
public:

	 matrix()
	 {
		mat[0]=1;
		mat[1]=2;
		mat[2]=3;
		mat[3]=4;
	 }


	 int operator[](int index)
	 {
		 if(index>=0&&index<=3)
			return mat[index];
		 else
			{
			cout<<"Index Out of Array Limits!";
			exit(0);
			}
	 }
};

int main()
{
	matrix m;
	cout<<"\nSafe Array Access:\nm[0]= "<<m[0]<<endl<<"m[1]= "<<m[1]<<endl<<"m[2]= "<<m[2]<<endl<<"m[3]= "<<m[3]<<endl;
	cout<<"\nUnsafe Access:\n";
	cout<<"m[5]= ";
	cout<<m[5];
	return 0;
}