// ScopeOperator1.cpp		By: Aiman Hanna -  ©1993-2006 Aiman Hanna

// This program illustrates how the scope operator can be used to refer to a hidden 
// global namespace member. Looking at the code, there are two definitions 
// of the variable "max".
// Both declarations can still be accessed by the fibonacci function. All 
// unqualified references will refer to the local declaration. To access the 
// global declaration, the scope operator must be used. 
//
// Key points: 1) the Scope operator ::

 

#include <iostream.h>

// Global variables
const int max = 65000;
const int lineLength = 12;

void fibonacci(int max)
{
	if (max < 2)
		return;

	cout << "0 1 ";

	int v1 = 0, v2 = 1, cur;
	for (int i = 3; i <= max; ++i)
	{
		cur = v1 + v2;
		if (cur > ::max)
				break;
		cout << cur << " ";

		v1 = v2;
		v2 = cur;

		if (i % lineLength == 0)
				cout << endl;
	}

}


int main()
{
	cout << "Fibonacci Series: 16\n";
	fibonacci(16);

	cout << endl << endl;
	fibonacci(16000);
	cout << endl;
	return 0;
}


/* The output
Fibonacci Series: 16
0 1 1 2 3 5 8 13 21 34 55 89
144 233 377 610

0 1 1 2 3 5 8 13 21 34 55 89
144 233 377 610 987 1597 2584 4181 6765 10946 17711 28657
46368

*/