Question

A bit of a noob question:
I need classes A and B such that A has a B* member and B has an A* member.

When compiling I get “error: ISO C++ forbids declaration of ‘B’ with no type”. How can I get around this?

Answer 1

Forward declare B (or A )

class B; //forward declaration of B

class A
{
   B *b;
};

class B
{
   A *a;
};