#include
using std::cout;
using std::endl;
class MyClass
{
friend void setX( MyClass &, int ); // friend declaration
public:
MyClass() : x( 0 )
{
}
void print() const
{
cout << x << endl;
}
private:
int x;
};
void setX( MyClass &c, int val )
{
c.x = val;
}
int main()
{
MyClass counter;
counter.print();
setX( counter, 8 );
counter.print();
return 0;
}
0
8