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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class A
  5. {
  6.     int i;
  7. public:
  8.     A() { i = 7; cout << 1 << f() << i << '/'; }
  9.     A(int i) :i(i) { cout << 1 << f() << i << '/'; }
  10.     char f() { return 'A'; }
  11. };
  12. class B : public virtual A
  13. {
  14.     int i;
  15. public:
  16.     B(int i) : A(i), i(++i) { cout << 2 << i << '/'; }
  17.     virtual char f() { return 'B'; }
  18. };
  19. class C : public virtual A {
  20. public:
  21.     C(int i) : A(i) { cout << 3 << i << '/'; }
  22.     virtual char f() { return 'C'; }
  23. };
  24. class D :public A {
  25. public:
  26.     D(int i) { cout << 4 << i << '/'; }
  27.     virtual char f() { return 'D'; }
  28. };
  29. class E : public B, public C, public D {
  30. public:
  31.     E() : B(2), C(3), D(4) { cout << 5; }
  32.     virtual char f() { return 'E'; }
  33. };
  34. int main()
  35. {
  36.     E e;
  37.     return 0;
  38. }
Success #stdin #stdout 0s 16056KB
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stdin 
Standard input is empty
stdout 
1A7/23/33/1A7/44/5
https://ideone.com/waZvTw
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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