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  1. #include <iostream>
  2. #include <utility>
  3. #include <vector>
  4. using namespace std;
  5.  
  6. class Class
  7. {
  8. public:
  9. 	int uid;
  10. 	std::vector<int> x;
  11. 	Class(const int uid, const std::vector<int> &x): uid(uid), x(x) {}
  12.  
  13. 	~Class() { std::cout << "Destructing " << uid << "\n"; }
  14. };
  15.  
  16. int main() {
  17. 	Class c2(2, {});
  18. 	{
  19. 		Class c1(1, {1,2,3,4,5});
  20. 		std::cout << "(Before move) c1 size: " << c1.x.size() << "  c2 size: " << c2.x.size() << "\n";
  21. 		c2.x = std::move(c1.x);
  22. 		std::cout << "(After move) c1 size: " << c1.x.size() << "  c2 size: " << c2.x.size() << "\n";
  23. 	}
  24. 	std::cout << "(After dstor) c2 size: " << c2.x.size() << "\n";
  25. 	std::cout << c2.x.size() << "\n";
  26. 	return 0;
  27. }
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin 
Standard input is empty
stdout 
(Before move) c1 size: 5  c2 size: 0
(After move) c1 size: 0  c2 size: 5
Destructing 1
(After dstor) c2 size: 5
5
Destructing 2
https://ideone.com/H762Sn
language:
C++14 (gcc 8.3)
created:
7 days ago
visibility:
public

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