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copy 
  1. #include <iostream>
  2.  
  3. struct Bar {
  4. 	Bar() { std::cout << "create\n"; }
  5. 	Bar(Bar const&) { std::cout << "copy\n"; }
  6. 	Bar(Bar&&) { std::cout << "move\n"; }
  7. 	~Bar() { std::cout << "destroy\n"; }
  8. };
  9.  
  10. void fooA(Bar const& bar) {
  11. 	Bar bar_cpy(bar);
  12. }
  13.  
  14. void fooB(Bar bar) {
  15. }
  16.  
  17. int main() {
  18. 	::std::cout << "by-reference then copy\n";
  19. 	fooA(Bar());
  20.  
  21. 	::std::cout << "\nby-value\n";
  22. 	fooB(Bar());
  23. }
Success #stdin #stdout 0s 3140KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
by-reference then copy
create
copy
destroy
destroy

by-value
create
destroy
https://ideone.com/KHTgHZ
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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