structure classes

[ronenp88]

hello!
I have two component classes, classA defined before classB,
and I need to call from classA a method in classB (update component coordinates)
classC hold instances of classA and classB, and is defined after those two,
everything start running from classC
i dont know how to deliver access between the classes, they are seperated because
they do different things and otherwise inside one class, they can share resources but, it would be a mess, what if I have more component classes ? mess

what are my options on this?

thanks!

[keskiverto]

class A {
  void foo();
};
// class A has been defined

class B {
public:
  void bar();
};
// class B has been defined

// implementation. B is known.
void A::foo() {
  B gaz;
  gaz.bar();
}

[ronenp88]

thanks, I was implementing inside classA where B is unkown I guess, problem solved.

[jonnin]

its perfectly doable to add a B gaz; inside class A and call .bar inside one of A's methods.
If you need to do that still?

[keskiverto]

For fun:
https://herbsutter.com/2013/08/19/gotw-7a-solution-minimizing-compile-time-dependencies-part-1/
https://herbsutter.com/2013/12/31/gotw-7b-solution-minimizing-compile-time-dependencies-part-2/
https://herbsutter.com/2014/01/06/gotw-7c-solution-minimizing-compile-time-dependencies-part-3/