Template friend function not compiling (full working code example)
Sorry for last time not providing full code. Now I paste here the full
code so you can test the error yourself. I have GCC 4.8, debug build,
C++11 on, Windows XP. Error message: "error: declaration of 'operator*'
as non-function".
So I tried to add a simple multiplication function as a friend. And it
to be template function. But it conflicts with the other multiplication
function.
It works if I commend out the other * operator (see the code).
Any idea how to fix this? thanks
Full console based code which does not compile:
#include <iostream>
using namespace std;
template <typename T> class Vector2D2;
template <typename T> Vector2D2<T> operator * (const T& pointXY, const
Vector2D2<T>& point);
template <typename T>
class Vector2D2
{
public:
// if I commend this out the code compiles with no problems
Vector2D2 operator * (const Vector2D2& point) const { return *this; }
friend Vector2D2<T> operator* <> (const T& pointXY, const
Vector2D2<T>& point);
int y;
private:
T b;
};
template <typename T>
Vector2D2<T> operator* (const T& pointXY, const Vector2D2<T>& point)
{
Vector2D2<T> cc;
cc.b = point.b * pointXY;
return cc;
}
int main()
{
Vector2D2<double> jj, mm;
mm = 3.0 * jj;
std::cout<<mm.y;
return 0;
}