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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. void func1(int &val){
  5. 	val = 20;
  6. }
  7.  
  8. void func2(int &val){
  9. 	func1(val);
  10. }
  11.  
  12. int main() {
  13. 	int test_var = 0;
  14. 	func2(test_var);
  15. 	cout << "test_var = " << test_var << endl;
  16.  
  17. 	return 0;
  18. }
Success #stdin #stdout 0s 3468KB
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Standard input is empty
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test_var = 20
https://ideone.com/D8lPmK
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
secret

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