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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. class Point {
  5.   int x, y;
  6. public:
  7.   Point() {}
  8.   Point(int px, int py) 
  9.   {x = px;y = py;}
  10.   void show() {
  11.     cout << x << " ";
  12.     cout << y << "\n";
  13.   }
  14.   Point operator+(Point op2);
  15.   Point operator,(Point op2);
  16. };
  17.  
  18. // overload comma for Point
  19. Point Point::operator,(Point op2)
  20. {
  21.   Point temp;
  22.   temp.x = op2.x;
  23.   temp.y = op2.y;
  24.   cout << op2.x << " " << op2.y << "\n";
  25.   return temp;
  26. }
  27.  
  28. // Overload + for Point
  29. Point Point::operator+(Point op2)
  30. {
  31.   Point temp;
  32.   temp.x = op2.x + x;
  33.   temp.y = op2.y + y;
  34.   return temp;
  35. }
  36.  
  37. int main()
  38. {
  39.   Point ob1(10, 20), ob2( 5, 30), ob3(1, 1);
  40.   Point ob4;
  41.   ob1 = (ob1, ob2+ob2, ob3);//Why control is not reaching comma operator for ob1?
  42.   ob1 = (ob3, ob2+ob2, ob1);//Why control is not reaching comma operator for ob3?
  43.   ob4 = (ob3+ob2, ob1+ob3);//Why control is not reaching comma operator for ob3+ob2?
  44.   char c;
  45.   cin >>c;
  46.   return 0;
  47. }
Success #stdin #stdout 0s 3300KB
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stdin
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Standard input is empty
stdout
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10 60
1 1
10 60
1 1
2 2
https://ideone.com/1vGHEC
language:
C++14 (gcc 8.3)
created:
12 years ago
visibility:
secret

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