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  1. #include <iostream>
  2. #include <memory>
  3.  
  4. int main()
  5. {
  6. 	{// I Move semantics
  7. 		std::shared_ptr<int> sptr;
  8. 		sptr = std::make_unique<int>(5);
  9. 		std::cout << *sptr << '\n';
  10. 	}
  11. 	{// II The same thing
  12. 		std::shared_ptr<int> sptr;
  13. 		std::unique_ptr<int> uptr = std::make_unique<int>(5);
  14. 		sptr = std::move(uptr);
  15. 		std::cout << *sptr << ", " << bool(uptr) << '\n';
  16. 	}
  17. 	{// III Assignment operator is not allowed
  18. //		std::shared_ptr<int> sptr;
  19. //		std::unique_ptr<int> uptr = std::make_unique<int>(5);
  20. //		sptr = uptr;
  21. //		std::cout << *sptr << ", " << bool(uptr) << '\n';
  22. 	}
  23. 	{// IV Copy ctor is not allowed
  24. //		std::unique_ptr<int> uptr = std::make_unique<int>(5);
  25. //		std::shared_ptr<int> sptr = uptr;
  26. //		std::cout << *sptr << ", " << bool(uptr) << '\n';
  27. 	}
  28. }
Success #stdin #stdout 0s 4316KB
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https://ideone.com/RTJSyT
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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