[DotNetDevelopment] error c2804 c++

[Carlos Arias]

Hi,
I try to overload the << operator with this code:


ostream& operator << (ostream &os, const dialer &d);

ostream& operator << (ostream& os, const dialer& d) {

os << "";

return os;

}

but return me a c2804 error how can i solve this problem.

thanks every body.


-- 
Carlos Andrés Arias Blanco
8864-3573