How to overload <<

Say is there anything wrong in this code.i want to overload <<.

#include <iostream.h>

class Boy
{
 friend iostream& operator << (iostream&,Boy &);
 public:Boy(int a) {age=a;}
 private:int age;
};

iostream& operator << (iostream& ios,Boy &b)
{
 ios << b.age;
 return ios;
}
main()
{
 Boy b(1);
 cout << b;
}


I want the age of the boy to be printed whenever i give cout<<b ...but the compiler gives an error (illegal structure format for cout << b)

Please help immediately.
girishrAsked:
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koskiaConnect With a Mentor Commented:
Answer2000 is right,
you should use ostream and not iostream
this should solve the problem.
the cout object recieves ostreams, which is driven from iostream, ofcourse it can't make the downcast
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Answers2000Commented:
Don't you mean ostream& instead of all those iostream&'s ?
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MithanderCommented:
Classes default to Private.  There for the:
friend iostream& operator << (iostream&,Boy &);
would be private.  I am not sure if this matters because it is not a member function.  Just a thought though.
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girishrAuthor Commented:
Thanks.I knew it all the time and i still made a mistake..
mithander i do not think friends area affected by public and private
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