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#include <CGAL/Exact_integer.h>
#include <CGAL/Extended_homogeneous.h>
#include <CGAL/Nef_polyhedron_3.h>
#include <cassert>
typedef CGAL::Exact_integer NT;
typedef CGAL::Extended_homogeneous<NT> Kernel;
typedef CGAL::Nef_polyhedron_3<Kernel> Nef_polyhedron;
//typedef Nef_polyhedron::Plane_3 Plane_3;
typedef Kernel::Plane_3 Plane_3;
int main() {
Nef_polyhedron N1(Plane_3(2,5,7,11), Nef_polyhedron::INCLUDED);
Nef_polyhedron N2(Plane_3(2,5,7,11), Nef_polyhedron::EXCLUDED);
assert(N1 >= N2);
assert(N2 <= N1);
assert(N1 != N2);
assert(N1 > N2);
assert(N2 < N1);
N2 = N2.closure();
assert(N1==N2);
assert(N1>=N2);
assert(N1<=N2);
return 0;
}
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