use reference as class member

[ztdep]

Dear friends:
I am confused about the problem of "using reference as class member". For example, i have two classes.

class A
{
public:
A(Mesh& FM):FVmesh(FM){}
private:
Mesh& FVmesh;
}

class B
{
B(A& FAA):AA(FAA){}

private:
A& AA;
}
The class B use the reference of A as a class member, it will not compiled sucessfully. Since class A must have a "Mesh& FM" to initilize it class member.
one solution is to use pointer as the class member of class B. But how to resolve this problem with referenes.
Regards

[Peter87]

What compilation error are you getting?

The main problem of using references as members that I can think of is that it will prohibit copy assigment because references can't be reassigned.

[Cubbi]

the errors I see are missing semicolons and B's constructor is private. Fixing that, it compiles and objects of type B can be created: https://wandbox.org/permlink/TEjReCpzs8H229Vd

[dhayden]

typedef int Mesh;

class A
{
  public:
    A(Mesh & FM):FVmesh(FM) { }
  private:
      Mesh & FVmesh;
};

class B
{
  public:
    B(A & FAA):AA(FAA) { }

  private:
      A & AA;
};

int
main()
{
    Mesh m;
    A a(m);
    B b(a);
}