/* A demo program to show the usage of & and * opetaors
 * pointers and array variable
 */
#include <iostream>
using namespace std;

void Pause()
{
	cout <<"Press any key to continue:";
	char key;
	cin >> key;
}

int main()
{
	long l;
	int a;
	int b[20];
	


	cout <<"--------------------------------------------------------------- \n";
	cout <<"Demonstrating how to obtain the address of a variable, using &\n";
	cout <<"--------------------------------------------------------------- \n";

	cout <<"The size of long variable l is: " << sizeof(l)<<endl;
	cout <<"The size of int variable a is: " << sizeof(a)<<endl;
	cout <<"The address of variable a is\n";
	cout << "  " << &a << " in hexadecimal";
	cout << "  " << (long)&a << " in decimal\n";
	
	Pause();
	cout <<"\n\n";
	cout <<"--------------------------------------------------------------- \n";
	cout <<"Demonstrating how to obtain the address of array element using &\n";
	cout <<"--------------------------------------------------------------- \n";

	cout <<"The size of variable b is " << sizeof(b)<<endl;
	cout <<"The address of variable b[0] is \n";
	cout << "  " << &(b[0])<<" in Hexadecimal,"<<(long)&(b[0]) << " in Decimal\n";

	cout <<"The address of variable b[1] is \n";
	cout << "  " << &(b[1]) <<" in Hexadecimal,"<<(long)&(b[1]) << " in decimal\n";

	cout <<"The address of variable b[2] is \n";
	cout << "  " << &(b[2]) <<" in Hexadecimal,"<< (long)&(b[2]) << " in decimal\n";

	Pause();
	cout <<"\n\n";
	cout <<"--------------------------------------------------------------- \n";
	cout <<"Demonstrating array variable is a pointer variable\n";
	cout <<"--------------------------------------------------------------- \n";
	cout <<"array variable b=" << b << " in hexadecimal," << 
		(long)b << " in decimal" << endl; 


}