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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. struct Test {
  5.     mutable int a;
  6. };
  7.  
  8. void testFunc(const Test &test) {
  9.     [=] {
  10.         test.a = 2;
  11.     } ();
  12. }
  13.  
  14. int main() {
  15.     Test test{1};
  16.     testFunc(test);
  17.     cout << (test.a == 2 ? "reference" : "value");	
  18. 	return 0;
  19. }
Success #stdin #stdout 0s 3296KB
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value
https://ideone.com/R0HclW
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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