#include <CGAL/Homogeneous.h>
#include <CGAL/Nef_polyhedron_3.h>
#include <CGAL/IO/Nef_polyhedron_iostream_3.h>
#include <CGAL/Nef_3/Polygon_constructor.h>
typedef Point_3* point_iterator;
typedef std::pair<point_iterator,point_iterator> point_range;
typedef std::list<point_range> polygon;
typedef polygon::const_iterator polygon_iterator;
typedef CGAL::Polygon_constructor<Nef_polyhedron, polygon_iterator>
Polygon_constructor;
int main() {
Point_3 pl[4] = {Point_3(0,0,0), Point_3(1,0,0),
Point_3(1,1,0), Point_3(0,1,0)};
polygon poly;
poly.push_back(point_range(pl,pl+4));
Nef_polyhedron N;
Polygon_constructor pc(poly.begin(), poly.end());
N.delegate(pc,true);
std::cout << N;
}