1 #include "a.h" 2 3 void A::doSomething(A &anotherA) { 4 printf("In A %p doing something with %d.\n", this, m_a_value); 5 int tmp_value = anotherA.Value(); 6 printf("Also have another A at %p: %d.\n", &anotherA, tmp_value); // Break here in doSomething. 7 } 8 9 class Extra 10 { 11 public: 12 Extra (int in_one, int in_two) : m_extra_one(in_one), m_extra_two(in_two) {} 13 14 private: 15 int m_extra_one; 16 int m_extra_two; 17 }; 18 19 class B : public Extra, public virtual A 20 { 21 public: 22 B (int b_value, int a_value) : Extra(b_value, a_value), A(a_value), m_b_value(b_value) {} 23 B (int b_value, int a_value, A *client_A) : Extra(b_value, a_value), A(a_value, client_A), m_b_value(b_value) {} 24 25 virtual ~B () {} 26 27 private: 28 int m_b_value; 29 }; 30 31 static A* my_global_A_ptr; 32 33 int 34 main (int argc, char **argv) 35 { 36 my_global_A_ptr = new B (100, 200); 37 B myB (10, 20, my_global_A_ptr); 38 B *second_fake_A_ptr = new B (150, 250); 39 B otherB (300, 400, second_fake_A_ptr); 40 41 myB.doSomething(otherB); // Break here and get real addresses of myB and otherB. 42 43 A reallyA (500); 44 myB.doSomething (reallyA); // Break here and get real address of reallyA. 45 46 myB.doSomething(*make_anonymous_B()); 47 48 return 0; 49 } 50