/* Name: Ryan Lazzari
 * Class: Programming I
 * Section Number: ***********
 * Project Number: 9
 * The purpose of this program is to
 * return all prime numbers between
 * 0 and a number specified by
 * the user.
*/

#include <iostream>
#include <iomanip>
using namespace std;

// prototypes
bool IsPrime(int);

int main()
{
	// Declare variables
	int userNumber;
	bool primeNumber;

	// Prompt user for input
	cout << "Please input a positive number: ";
	cin >> userNumber;
	while (userNumber <= 1)
	{
		cout << "Invalid entry. Please enter an integer greater than 1.";
	}
	cout << '\n' << "The prime numbers less than or equal to " << userNumber << " are:" << '\n';

	// Display results
	primeNumber = IsPrime(userNumber);
}

bool IsPrime(int userNumber)
{

    // Declare variables
	bool primeNumber = false;
	int i = 2;
	int lineCounter = 0;
	int currentNumber=2;


	for (currentNumber = 2; currentNumber < userNumber; currentNumber++)
	{
		for (i = 2; i < currentNumber; i++)
		{
			if (currentNumber % i == 0)
			{
				primeNumber = true;
				break;
			}
		}
		if (primeNumber = false)
		{
			cout << currentNumber << '\t';
			return currentNumber;
			currentNumber++;
			lineCounter++;
			if (lineCounter == 8)
				lineCounter = 0;
		}
	}
}