template <class T> struct PCVector2 // { dg-message "note" }
{
    template <class T2> PCVector2(const PCVector2<T> &cv) ; // { dg-message "note" }

    PCVector2<T> operator- (const PCVector2<T> &ov) const 
	{ 
	  return PCVector2<T>(ov.xFIELD, ov.yFIELD); // { dg-error "matching" }
	  // { dg-message "(candidate|expects 1 argument, 2 provided|cannot convert)" "candidate note" { target *-*-* } .-1 }
	}

    T xFIELD, yFIELD;
};

void findIntersection( PCVector2<double>& p0, PCVector2<double>& p1);


void findIntersection( PCVector2<double>& p0, PCVector2<double>& p1)
{
    PCVector2<double> e = p1 - p0;	// { dg-message "required" }
}