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  1. #include <iostream>
  2. #include <memory>
  3. using namespace std;
  4.  
  5. class A{
  6. public:
  7. 	A() {std::cout << "A()\n";}
  8. 	~A() {std::cout << "~A()\n";}
  9. };
  10.  
  11. class B{
  12. public:
  13. 	B() {
  14. 		a_ = std::make_unique<A>();
  15. 		std::cout << "B()\n";
  16. 	}
  17. 	~B() {std::cout << "~B()\n";}
  18. private:
  19. 	std::unique_ptr<A> a_;	
  20. };
  21.  
  22. int main() {
  23. 	std::cout << "start\n";
  24. 	B b;
  25. }
Success #stdin #stdout 0s 4460KB
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stdin
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Standard input is empty
stdout
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start
A()
B()
~B()
~A()
https://ideone.com/XPobau
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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