How to use 2 different class variables in a function

[Ch1156]

ok so this isnt an actual concern i have for my game or anything i just got to thinking about it and am curious. So lets say i have a class

class testOne
{
  public:
    testOne();
    ~testOne();

  private:
    int num1;
};

and i have another class that does not inherit from testOne

class testTwo
{
  public:
    testTwo();
    ~testTwo();

  private:
    int num2;
};

so i have a function that inherits from testOne

void testOne::function()
{
num2 = 800;
cout << num2 << endl;
}

how would i use the other classes variables in this function without having to make an object?

[Daleth]

That function is a member function. It does no inheriting at all.

You can make the function a friend.

class testTwo{
   public:
   //...
   friend void testeOne::function(testTwo&);
   //...
};

Now it has access to the private and protected members. Don't get carried away with friends, though. They break encapsulation.

[Ch1156]

ok thanks.

[Superdude]

I would just make testTwo member functions to set and get the member vars.