// This program shows how to reset fin if it fails so it can be utilized again.
// (same idea will also work with cin)
// It also shows how to put a limit (in this case 3 times) to the number of times you
// check for correct input

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

int main()
{
	int i, tries = 0;
	ifstream fin;
	char filename[30];
	cout << " enter name of input file" << endl;
	cin >> filename;
	fin.open(filename);
	tries++;			// first try
	while ((!fin)&& (tries < 3))
	{
		cout << " couldn't open, please enter file name again " << endl;
		cin >> filename;
		fin.clear();  // reset status flags for fin - i.e. make it active again
		fin.open(filename);
		tries++; // next try
	}

	if (!fin) // they had 3 tries - still couldn't get it - time to stop
	{
		cout << " After 3 tries let's give up - check your input file" << endl;
		return 0;
	}

	cout << " file opened successfully " << endl;


	
	fin.close();
	
	return 0;
}