Create a non-friend inserter.

#include <iostream>
using namespace std;

class MyClass {
public:
  int x, y;  // must be public
  MyClass() { 
     x = 0; 
     y = 0; 
  }
  MyClass(int i, int j) { 
     x = i; 
     y = j; 
  }
};

// An inserter for the MyClass class.
ostream &operator<<(ostream &stream, MyClass ob)
{
  stream << ob.x << ", " << ob.y << '\n';
  return stream;
}

int main()
{
  MyClass a(1, 1), b(10, 23);
  cout << a << b;

  return 0;
}

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Create a non-friend inserter. : Inserter « Overload « C++

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