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  1. #include <iostream>
  2.  
  3. int f()
  4. {
  5. 	int a = 5;
  6. 	return a;
  7. }
  8.  
  9. int& g()
  10. {
  11. 	int a = 5;
  12. 	return a;
  13. }
  14.  
  15. int&& h()
  16. {
  17. 	return 5;
  18. }
  19.  
  20. int&& i()
  21. {
  22.     int a = 5;
  23. 	return std::move(a);
  24. }
  25.  
  26. int main()
  27. {
  28. 	int l           {f()};
  29. //	int& rl         {f()};
  30. 	const int& crl  {f()};
  31. 	int r           {std::move(f())};
  32. 	int&& rr        {std::move(f())};
  33.  
  34. 	std::cout << "kopia " << l << " " << crl << " " << r << " " << rr << std::endl;
  35.  
  36. 	int l2          {g()};
  37. 	int& rl2        {g()};
  38. 	const int& crl2 {g()};
  39. 	int r2          {std::move(g())};
  40. 	int&& rr2       {std::move(g())};
  41.  
  42. 	std::cout << "referencja " << l2 << " " << rl2 << " " << crl2 << " " << r2 << " " << rr2 << std::endl;
  43.  
  44. 	int l3          {h()};
  45. //	int& rl3        {h()};
  46. 	const int& crl3 {h()};
  47. 	int r3          {std::move(h())};
  48. 	int&& rr3       {std::move(h())};
  49.  
  50. 	std::cout << "u_referencja " << l3 << " " << crl3 << " " << r3 << " " << rr3 << std::endl;
  51.  
  52. 	int l4          {i()};
  53. //	int& rl4        {i()};
  54. 	const int& crl4 {i()};
  55. 	int r4          {i()};
  56. 	int&& rr4       {i()};
  57.  
  58. 	std::cout << "u_referencja2 " << l4 << " " << crl4 << " " << r4 << " " << rr4 << std::endl;
  59.  
  60. 	return 0;
  61. }
Runtime error #stdin #stdout 0s 4492KB
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Standard input is empty
stdout
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kopia 5 5 5 0
https://ideone.com/DENrPW
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

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