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  1. #include <iostream>
  2.  
  3. struct A {
  4. 	A() { std::cout << "A()" << std::endl; }
  5. };
  6.  
  7. struct B : A {
  8. 	B() { std::cout << "B()" << std::endl; }
  9. 	B(const B& b) { std::cout << "B(const B& b)" << std::endl; }
  10. };
  11.  
  12. struct C : A {
  13. 	C() { std::cout << "C()" << std::endl; }
  14. 	C(const C& c) : A(c) { std::cout << "C(const C& c)" << std::endl; }
  15. };
  16.  
  17. int main() {
  18. 	std::cout << "Construct b1" << std::endl;
  19. 	B b1;
  20. 	std::cout << std::endl << "Construct b2" << std::endl;
  21. 	B b2(b1);
  22.  
  23. 	std::cout << std::endl << "Construct c1" << std::endl;
  24. 	C c1;
  25. 	std::cout << std::endl << "Construct c2" << std::endl;
  26. 	C c2(c1);
  27. }
Success #stdin #stdout 0s 3296KB
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stdin
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Standard input is empty
stdout
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Construct b1
A()
B()

Construct b2
A()
B(const B& b)

Construct c1
A()
C()

Construct c2
C(const C& c)
https://ideone.com/51NDVK
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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