Thread: binary '<<' : no operator defined

Ok, i'm new to c++ and im looking at classes and overloading. I keep getting this error in vis studio:

error C2679: binary '<<' : no operator defined which takes a right-hand operand of type 'class CVector2' (or there is no acceptable conversion)

all my main does is this at the mo:

Code:

int main()
{
CVector2 Vector1(0,1), Vector2(1,0), result;

result = Vector1 + Vector2;

cout << "Result: " << result << endl; /* line with error */

return 0;
}

What does the error mean? and what am I doing wrong... if you need the class code, then just shout, ty

Code tagged By Hammer

It mght be that you have not, in fact, defined an operator for inserting a CVector2 into an ostream.

If this is the case, you will need to define it, in a function like this:

Code:

ostream& operator<< (ostream o, CVector2 cv) {

   o << '(' << cv.firstnumber << ", " << cv.secondnumber << ')';

   return o;

}

If you have a function along these lines somewhere in your program, you might need to check that it is being included and brought into scope.