Complex logic in ostream operator : overload ostream istream operator « Operator Overloading « C++ Tutorial

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C++ Tutorial » Operator Overloading » overload ostream istream operator

10.15.5.Complex logic in ostream operator

#include <iostream>

using namespace std;



class Line {

  int x;

public:

  Line(int i) { x=i; }

  friend ostream &operator<<(ostream &stream, Line o);

};



ostream &operator<<(ostream &stream, Line o)

{

  register int i, j;



  for(i=0; i<o.x; i++)

     stream << "*";

  stream << "\n";



  return stream;

}



int main()

{

  Line a(14), b(30), c(40);



  cout << a << b << c;



  return 0;

}

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10.15.overload ostream istream operator
	10.15.1.	Class level ostream operator and istream operator
	10.15.2.	istream operator with data check
	10.15.3.	Class ostream operator
	10.15.4.	ostream and istream operator for a class
	10.15.5.	Complex logic in ostream operator
	10.15.6.	friend ostream operator for private fields
	10.15.7.	Overload ostream and istream operator
	10.15.8.	Ignore: manipulator that ignores N lines
	10.15.9.	Overloading >>: To demonstrate a custom inserter, one will be created for objects of type phonebook, shown here.
	10.15.10.	Overload << (inserter)

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