#include <CGAL/Filtered_extended_homogeneous.h>
#include <CGAL/Nef_polyhedron_2.h>
typedef Nef_polyhedron::Line Line;
int main()
{
Nef_polyhedron N1(Line(1,0,0));
Nef_polyhedron N2(Line(0,1,0), Nef_polyhedron::EXCLUDED);
Nef_polyhedron N3 = N1 * N2;
return 0;
}