operator overloading >> and private member [duplicate]

Question

Please do read before flagging as a duplicate

I am overloading operators >> and << for reading complex numbers with real part r and imaginary part i;

#include<iostream.h> #include<conio.h> #include<stdio.h> class complex { int r,i; public: complex() { i=r=0;} friend istream& operator>>(istream&, complex&); friend ostream& operator<<(ostream&,complex&); }; istream& operator>>(ifstream &din, complex &x) { din>>x.r; din>>x.i; return din; } ostream& operator<<(ostream &dout, complex &x) { dout<<x.r<<x.i; return dout; } void main() { clrscr(); complex x; cin>>x; cout<<x; }

The error is that r and i are not accessible at code part

din>>x.r; din>>x.i;

The error is that r and i are private so not accessible Aren't normal friend functions able to access private variables. Why does it fail for >> only?

Note: << operator works fine. only >> fails

Please don't design your class in this way. It will be so confusing. — Bathsheba
– Bathsheba, Commented Jul 10, 2013 at 15:08
iostream.h is not a standard header. Use iostream. None of the standard C++ headers have extensions. void main is also not a legal signature. Use int main. — Qaz
– Qaz, Commented Jul 10, 2013 at 16:43

legoscia · Accepted Answer · 2013-07-10 15:10:51Z

The friend declaration of operator>> takes an istream argument, but the implementation takes an ifstream argument, making it a completely different (and thus non-friend) function. Remove the extra f, and it should work.

Collectives™ on Stack Overflow

operator overloading >> and private member [duplicate]

1 Answer 1

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Linked

Related