Does it problem to have circularity? Does it means circularity?

[RuWex]

if I have :

class A{
B* b;
}

class B{
A* a;
}

Is it problem?? How can I solve it if I really need this pointers?

Does this Idea will solve it?
When creating A in the constructor, I create B and send it to the constructor itself?
thank:)

[JonB]

@RuWex
What is the "problem" here? It should work OK, because you are using pointers, e.g.

A *a = new A;
B *b = new B;
a->b = b;
b->a = a;

or in, say, the constructor of A:

this->b = new B;
this->b->a = this;

[jsulm]

@RuWex said in Does it problem to have circularity? Does it means circularity?:

Is it problem??

What problem are you talking about?
If you have the problem with header files reversely including each other then the solution is simple: forward declarations without including herder files inside other header files (include those in cpp files):

// Header for A
class B; // Forward declaration for class B
class A{
B* b;
}

// Header for B
class A; // Forward declaration for class A
class B{
A* a;
}

Keep in mind: forward declarations only works if you use pointers.