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  1. #include <iostream>
  2. #include <utility>
  3. using namespace std;
  4.  
  5. struct LogMe {
  6. 	std::string member;
  7.  
  8. 	LogMe() {
  9. 		cout << __FUNCTION__ << " - def.ctor!" << endl;
  10. 	}
  11. 	~LogMe() {
  12. 		cout << __FUNCTION__ << " - dtor!" << endl;
  13. 	}
  14. 	LogMe(LogMe const&) {
  15. 		cout << __FUNCTION__ << " - cpy.ctor!" << endl;
  16. 	}
  17. 	LogMe& operator=(LogMe const&) {
  18. 		cout << __FUNCTION__ << " - cpy.assign.op!" << endl;
  19. 		return *this;
  20. 	}
  21. 	LogMe(LogMe&&) {
  22. 		cout << __FUNCTION__ << " - move.ctor!" << endl;
  23. 	}
  24. 	LogMe& operator=(LogMe&&) {
  25. 		cout << __FUNCTION__ << " - move.assign.op!" << endl;
  26. 		return *this;
  27. 	}
  28. };
  29.  
  30. int main() {
  31. 	cout << "# Construct Object via auto obj = ...\n";
  32. 	auto obj = LogMe();
  33. 	cout << "# Construct pair<int, object> via auto objp = ...\n";
  34. 	auto objp = pair<int, LogMe>();
  35. 	cout << "# Construct pair<int, object> via pair objp2; ...\n";
  36. 	pair<int, LogMe> p2;
  37.  
  38. 	return 0;
  39. }
Success #stdin #stdout 0s 3296KB
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Standard input is empty
stdout
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# Construct Object via auto obj = ...
LogMe - def.ctor!
# Construct pair<int, object> via auto objp = ...
LogMe - def.ctor!
# Construct pair<int, object> via pair objp2; ...
LogMe - def.ctor!
~LogMe - dtor!
~LogMe - dtor!
~LogMe - dtor!
https://ideone.com/wXuU6o
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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