#include <iostream>
#include <stdio.h>
#include <string>
#include <conio.h>
using namespace std;
int main()
{      
     FILE* myFile; 
     int myNumber = 6; 
	 string sname;

	 cout << "enter file name(please include file extension)\n";
	 cin >> sname;

     if ((myFile = fopen(sname.c_str(), "w+b")) != NULL) { 
         fwrite(&myNumber, sizeof(myNumber), 1, myFile);
         cout << "myNumber is: " << myNumber << endl; 
         myNumber = 0;
         cout << "myNumber has been reset to 0." << endl;       
         fclose(myFile); 
     }      
     else             
        cout << "Error: File not loaded!" << endl;    
     if ((myFile = fopen(sname.c_str(), "r+b")) != NULL) { 
        cout << "Reading previous number from data.txt..." << endl;  
        fread(&myNumber, sizeof(myNumber), 1, myFile); 
        cout << "myNumber from data.txt is: " << myNumber << endl;      
     }      
    else
         cout << "Error: File not loaded!" << endl;     

	 getch();
    return 0;
}