// Native_WrtieTextFile.cpp : Defines the entry point for the console application.


/*
_____________________________________________________________________________
Learning C++: Lesson 5
File I/O: Writing to a textfile
Ron Kessler
Created 1/4/2017

Native Version

This little program shows how to read a simple text file.



This little program shows how to work with File IO. You are asked to
add a new contact and then it is saved to disk. The program then reads
the updated file and displays the names.

You can add a new text file to your project by:
1.	Rt. clicking on the project in Solution Explorer.
2.	Choose ADD | New Item
3.	Select Utility | Textfile from the dialog box.
4. Name it using the .txt file extension


Run using CTL-F5
___________________________________________________________________________
*/


#include "stdafx.h"
#include <fstream>			//add this for IO
#include <iostream>
#include<string>


using namespace std;

int main ()
	{
			cout << "Learning About Writing to Text Files\n\n";

			cout << "Enter a new contact : ";
														
			string newContact;
			getline (cin, newContact);
			
			//---add stuff to current file
			ofstream myWriter ("contacts.txt", ios::app);				//of = output file (write) and append
			

			if (myWriter.is_open ())
				{
					myWriter << newContact << "\n";
					
				}

			else
				{
					cout << "Could not write to the file!" << '\n';
					return 0;
				}
			myWriter.close ();						//BE SURE TO CLOSE AFTER WRITING!






			//************************READING NEW RECORDS**************************
			//---now display the file data
			system("cls");

			cout << "Here Is The List Of Your Contacts: \n\n\n";


			ifstream myReader ("contacts.txt");					//open file for reading (i= input)
			string lineFromFile;
			
			if (myReader.is_open ())										//make sure file can be opened
				{
				while (getline (myReader, lineFromFile))		//read to end of file
					{
						cout << lineFromFile << "\n";				//print out each line
					}
				
				}

			else 
				cout << "Unable to read your file";

			myReader.close ();

			return 0;
	}