fork download 
  1. #include <iostream>
  2.  
  3. class A
  4. {
  5. public:
  6.     virtual void foo() = 0;
  7. };
  8.  
  9. class B
  10. {
  11. public:
  12.     virtual void foo() = 0;
  13. };
  14.  
  15. class AA : public A {
  16. public:
  17.     virtual void foo() { a_foo(); }
  18.     virtual void a_foo() = 0;
  19. };
  20.  
  21. class BB : public B {
  22. public:
  23.     virtual void foo() { b_foo(); }
  24.     virtual void b_foo() = 0;
  25. };
  26.  
  27. class C : public AA, public BB
  28. {
  29. public:
  30.     virtual void a_foo();
  31.     virtual void b_foo();
  32. };
  33.  
  34. void C::a_foo()  { std::cout<<"C::a_foo"<<std::endl; }
  35. void C::b_foo()  { std::cout<<"C::b_foo"<<std::endl; }
  36. void C::A::foo() { std::cout<<"C::A::foo"<<std::endl; }
  37. void C::B::foo() { std::cout<<"C::B::foo"<<std::endl; }
  38.  
  39. int main()
  40. {
  41.     C c;
  42.     A* pa = &c;
  43.     B* pb = &c;
  44.  
  45.     c.a_foo();
  46.     c.b_foo();
  47.     c.A::foo();
  48.     c.B::foo();
  49.     pa->foo();
  50.     pb->foo();
  51.     pa->A::foo();
  52.     pb->B::foo();
  53. }
Success #stdin #stdout 0s 3296KB
comments (?)
stdin 
Standard input is empty
stdout 
C::a_foo
C::b_foo
C::A::foo
C::B::foo
C::a_foo
C::b_foo
C::A::foo
C::B::foo
https://ideone.com/R2SyTz
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!