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  1. #include <iostream>
  2.  
  3. struct A
  4. {
  5. 	A() = delete;
  6. 	A(int x)
  7. 	: x(x)
  8. 	{
  9. 	}
  10. 	virtual ~A() = 0;
  11. 	int x;
  12. };
  13. A::~A() = default;
  14.  
  15. struct B : virtual A
  16. {
  17. 	B()
  18. 	//: A(-1)
  19. 	{
  20. 	}
  21. 	virtual ~B() = 0;
  22. };
  23. B::~B() = default;
  24.  
  25. struct C : B
  26. {
  27. 	C()
  28. 	: A(7)
  29. 	, B()
  30. 	{
  31. 	}
  32. };
  33.  
  34. int main()
  35. {
  36. 	C c;
  37. 	std::cout << c.x << std::endl;
  38. }
  39.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.cpp: In constructor ‘B::B()’:
prog.cpp:19:2: error: use of deleted function ‘A::A()’
  {
  ^
prog.cpp:5:2: error: declared here
  A() = delete;
  ^
stdout
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Standard output is empty
https://ideone.com/tmdzkn
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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