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  1. #include<iostream>
  2. using namespace std;
  3.  
  4. // Returning copies
  5. class Test1
  6. {
  7. private:
  8.   int x;
  9.   int y;
  10. public:
  11.   Test1 (int x = 0, int y = 0) { this->x = x; this->y = y; }
  12.   Test1 setX(int a) { x = a; return *this; }
  13.   Test1 setY(int b) { y = b; return *this; }
  14.   void print() { cout << "x = " << x << " y = " << y << endl; }
  15. };
  16.  
  17. // Returning references
  18. class Test2
  19. {
  20. private:
  21.   int x;
  22.   int y;
  23. public:
  24.   Test2 (int x = 0, int y = 0) { this->x = x; this->y = y; }
  25.   Test2& setX(int a) { x = a; return *this; }
  26.   Test2& setY(int b) { y = b; return *this; }
  27.   void print() { cout << "x = " << x << " y = " << y << endl; }
  28. };
  29.  
  30. int main()
  31. {
  32.   Test1 obj1;
  33.   obj1.setX(10).setY(20);
  34.   obj1.print();
  35.  
  36.   Test2 obj2;
  37.   obj2.setX(10).setY(20);
  38.   obj2.print();
  39. }
  40.  
Success #stdin #stdout 0s 15232KB
comments (?)
stdin
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Standard input is empty
stdout
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x = 10 y = 0
x = 10 y = 20
https://ideone.com/J0oCJ0
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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