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  1. #include <string>
  2. #include <iostream>
  3. using namespace std;
  4.  
  5. void func1(string s) {
  6.     s += '1';
  7. }
  8.  
  9. void func2(string &s) {
  10.     s += '2';
  11. }
  12.  
  13. int main ()
  14. {
  15.     string str = "----";
  16.     func1(str);
  17.     func2(str);
  18.  
  19.     cout << str << endl;
  20.  
  21.     return 0;
  22. }
  23.  
Success #stdin #stdout 0s 2984KB
comments (?)
stdin 
Standard input is empty
stdout 
----2
https://ideone.com/wZLfrY
language:
C++ (gcc 8.3)
created:
12 years ago
visibility:
public

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