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  1. #include<iostream>
  2. using namespace std;
  3. class A
  4. {
  5. public:
  6.      A(){ cout <<"1";}
  7. };
  8.  
  9. class B: virtual A
  10. {
  11. public:
  12.     B(){cout <<"2";}
  13. };
  14.  
  15. class C: B
  16. {
  17. public:
  18.    C(){cout<<"3";}
  19. };
  20.  
  21. /*class D : B, C
  22. {
  23.  
  24. };*/
  25.  
  26.  
  27. int main()
  28. {
  29.    C c1;
  30.    //D d1;
  31. }
Success #stdin #stdout 0s 15240KB
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stdin 
Standard input is empty
stdout 
123
https://ideone.com/TAkw0M
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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