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  1. #include <iomanip>
  2. #include <iostream>
  3. #include <string>
  4.  
  5. using namespace std;
  6.  
  7. class Test
  8. {
  9. public:
  10. 	Test(string& s) : ref(s) {}
  11.  
  12. 	void modify() { ref = "modified"; }
  13.  
  14. 	string const& get() const { return ref; }
  15.  
  16. private:
  17.  
  18. 	string& ref;
  19. };
  20.  
  21. #define DBG(x) { cout << left << setw(30) << #x << (x) << endl; }
  22.  
  23. main()
  24. {
  25. 	string s = "x";
  26.  
  27. 	Test x(s);
  28.  
  29. 	DBG(x.get());
  30.  
  31. 	x.modify();
  32.  
  33. 	DBG(x.get());
  34.  
  35.  
  36. }
Success #stdin #stdout 0s 3472KB
comments (?)
stdin
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Standard input is empty
stdout
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x.get()                       x
x.get()                       modified
https://ideone.com/GPSESg
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
public

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