#include <iostream.h>
#include <conio.h>
#include <fstream.h>

class xyz
{
public:
int x;
};

void main()
{

xyz a;
a.x=45;         //replace by 45 or 78 it works. Replace by 13, 26 it
shows garbage values.

ofstream of;
of.open("file.dat", ios::out||ios::binary);
of.write((char*)&a, sizeof(a));
of.close();

xyz b;

ifstream sf;
sf.open("file.dat", ios::in||ios::binary);
sf.read((char*)&b, sizeof(b));
sf.close();

cout<<b.x;
getch();


}