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  1. #include <iostream>
  2. #include <functional>
  3. using namespace std;
  4.  
  5. struct Test {
  6.     mutable int a;
  7. };
  8.  
  9. void testFunc(Test &test) {
  10.     test.a = 2;
  11. }
  12.  
  13. int main() {
  14.     Test test{1};
  15.     auto l = [test]() mutable {testFunc(test);};
  16.     l();
  17.     cout << (test.a == 2 ? "reference" : "value");	
  18. 	return 0;
  19. }
Success #stdin #stdout 0.01s 5284KB
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Standard input is empty
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value
https://ideone.com/kkSo9u
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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