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[Shabi Ma <>]

I believe so (with the Epick_d kernel).

Here is the code for reference:

#include <fstream>

#define CGAL_EIGEN3_ENABLED

#include <CGAL/Epick_d.h>
#include <CGAL/Triangulation_vertex.h>
#include <CGAL/Triangulation_data_structure.h>
#include <CGAL/Delaunay_triangulation.h>

using namespace std;

template <unsigned int D>
using K = CGAL::Epick_d<CGAL::Dimension_tag&lt;D>>;
template <unsigned int D>
using Vb = CGAL::Triangulation_vertex<K&lt;D>,double>;
template <unsigned int D>
using Tds =
CGAL::Triangulation_data_structure<CGAL::Dimension_tag&lt;D>,Vb<D>>;
template <unsigned int D>
using T = CGAL::Delaunay_triangulation<K&lt;D>, Tds<D>>;

int main(){
    T<4> test(4);
    std::ofstream out("test.txt");
    out << test;
    std::ifstream in("test.txt");
    in >> test;
    return 0;
}

The errors are a long list of template substitution errors, ending with this
one:

/usr/include/CGAL/Triangulation_vertex.h:116:8: note:   types
‘std::__cxx11::basic_string<_CharT, _Traits, _Alloc>’ and ‘const Point {aka
const CGAL::Wrap::Point_d<CGAL::Epick_d&lt;CGAL::Dimension_tag&lt;3> > >}’
have incompatible cv-qualifiers
     is >> v.point();




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