// Mr. Minich
// Computer Science Using C++
// Ch. 9 Demo Program #5
// May 15, 2000
// purpose - to provide a means for demonstrating the Visual Studio
//               C++ Debugger.

#include <iostream.h>

float computeTax(float);	// computes & returns PA sales tax
void watching();			// demonstrates danger of globals
float watchThisGuy;			// a global variable to "watch" with
							//    the debugger

int main()
{
	float price = 0.0;				// price of purchased
	float watchThisGuy = 5.0;		// a local variable (in main) to be "watched" with the
									//    debugger
	cout << "Enter the price: ";
	cin >> price;
	cout << "The amount of the tax is " << ComputeTax(price) << endl;
	cout << "watchThisGuy is " << watchThisGuy << " in main." << endl;
	cout << "watchThisGuy is " << watching << endl;

	return 0;
}// end of main

float computeTax(float a)
{
	float amountOfTax = 0.0;	// amount of PA sales tax
	float watchThisGuy = 9.9;	// a local guy (in ComputeTax) to watch

	amountOfTax = 0.06 * a;		// computing the sales tax
	watchThisGuy = 55.23456789;
	cout << "watchThisGuy is " << watchThisGuy << " in computeTax." << endl;

	return amountOfTax;
}// end of computeTax

void watching()
{
	cout << "watchThisGuy is" << watchThisGuy << "in watching." << endl;
}// end of watching