// Ch9Demo8	
// Wyo C++

// What displays after the following program executes?

#include <iostream>
#include <string>
#include <stdlib.h>		// for rand function
#include <time.h>		// for time function
using namespace std;

int mystery(int incoming);
int whatever(int firstNum, int secondNum);
void sayGoodbye(string incoming);
int getRandom();

int main()
{
	int num1 = 0;
	int total = 0;
	string userName;

	for (int i = 0; i < 5; i++)
	{
		num1 = num1 + 5;
	}
	
	cout << "num1 is " << num1;

	while (total < 40)
	{
		total = total + mystery(total);
	}
	
	cout << "\ntotal is " << total;
	
	cout << "\nThe returned value of the function whatever is " 
		 << whatever(num1, total);

	cout << "\nThe function getRandom returned the value of " << getRandom();

	cout << "\nWhat is your name? ";
	cin >> userName;

	sayGoodbye(userName);

    return 0;
}// end of main

int mystery(int incoming)
{
	return (incoming + 6);
}// end of mystery

int whatever(int firstNum, int secondNum)
{
	double average = 0.0;

	average = (firstNum + secondNum) / 2;

	return average;
}// end of whatever

void sayGoodbye(string incoming)
{
	cout << "Goodbye " << incoming << "!" << endl;
}// end of sayGoodbye

int getRandom()
{
	int randomInteger = 0;
	
	srand(time(0));			// seeding rand function
	randomInteger = rand();

	return randomInteger;
}// end of getRandom