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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int k = 10;
  6. 	int& foo = k;
  7. 	auto bar = foo; //value of foo is copied!
  8. 	bar = 5; //foo / k won't be 5
  9. 	cout << "bar : " << bar << " foo : " << foo << " k : " << k << endl;
  10. 	auto& ref = foo;
  11. 	ref = 5;
  12. 	cout << "bar : " << bar << " foo : " << foo << " k : " << k;
  13. 	return 0;
  14. }
Success #stdin #stdout 0s 3456KB
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Standard input is empty
stdout
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bar : 5 foo : 10 k : 10
bar : 5 foo : 5 k : 5
https://ideone.com/jH1g3Y
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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