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  1. #include <cassert>
  2.  
  3. struct A {
  4. 	virtual ~A() = default;
  5. };
  6.  
  7. struct B : public A {
  8. 	virtual ~B() = default;
  9. };
  10.  
  11. struct C {
  12. 	virtual ~C() = default;
  13. }; 
  14.  
  15. struct a1 : public B, public C {
  16. 	a1() = default;
  17. 	virtual ~a1() = default;
  18.  
  19. }; // indirect inheritance of A
  20.  
  21. int main() {
  22. 	a1 a;
  23.  
  24. 	C* c = &a;
  25.  
  26. 	assert(dynamic_cast<A*>(c) != nullptr);
  27.  
  28. 	return 0;
  29. }
Success #stdin #stdout 0s 4180KB
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https://ideone.com/RSC4GZ
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
secret

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