//File_IO.cpp 
//Binary and text files I/O demo
#include "stdafx.h"
#include <iostream>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
using namespace std;

void main(void)
{

		// Create text and binary files with the SAME data
		FILE * num_t_out=fopen("c:\\temp\\num.txt","w");
		FILE * num_b_out=fopen("c:\\temp\\num.bin","wb");

		if(num_t_out != NULL && num_b_out != NULL )
		{
			for(unsigned int i=1e9; i<1e9+20 ; i++)
			{
				fprintf(num_t_out,"%d ",i); //to text file
				fwrite(&i,sizeof(int),1,num_b_out); // to binary file
			}
			fclose(num_t_out);
			fclose(num_b_out);
		}
		else {cout<<"File problems\n"; getch(); exit(1);}

		// Read text file and binary file
		FILE * num_t_in=fopen("c:\\temp\\num.txt","r");
		FILE * num_b_in=fopen("c:\\temp\\num.bin","rb");
		if(num_t_in != NULL && num_b_in != NULL )
		{
			cout<<"\nText file data\n\n";
			while(1)
			{
				int tmp;
				fscanf(num_t_in,"%d",&tmp);
				if(feof(num_t_in)) break;
				cout<<tmp<<" ";
			}
			cout<<"\n\nBinary file data\n\n";
			while(1)
			{
				int tmp;
				fread(&tmp,sizeof(int),1,num_b_in);
				if(feof(num_b_in)) break;
				cout<<tmp<<" ";
			}
		}
		else {cout<<"File problems\n"; getch(); exit(1);}
		getch();
}