CGAL users discussion list

[Asher Kamiraze <>]

Hi all,

I am facing a problem with a piece which used to work but which now crashes.

Here is the method a segmentation fault:

void myobject::build_arr(const string& path, double tolerance)

{

    /// Here, we read the polygons from a file --> m_rectangles

    vector<Polygon_2>::const_iterator itb = m_rectangles.begin(), ite = m_rectangles.end();

    for(;itb!=ite;++itb)

    {

        Polygon_2::Edge_const_iterator e = itb->edges_begin(), ite_edges = itb->edges_end();

        for(;e!=ite_edges;++e)

        {

            Vector_2 v = e->to_vector();

            double d = sqrt(CGAL::to_double(v.squared_length()));

            v = (tolerance / d) * v ;

            std::cout << v << std::endl;

            std::cout << Segment_2(e->source()-v, e->target()+v) << std::endl;

            CGAL::insert(m_arr, Segment_2(e->source()-v, e->target()+v)); /// Whatever the dataset is, the second call to CGAL::insert causes a segmentation fault

        }

    }

}

Here is the output on the console with one of my dataset:

45.5953 20.5199

387.269 239.624 506.547 293.304

-20.5199 45.5953

481.472 227.189 407.029 392.6

There is no duplicate point. I am on a linux ubuntu 11.04, g++ 4.5.2 and CGAL 3.7 (I compiled it myself).

The same code used to work on the same machine, with an ubuntu 10.04 (cannot remember g++ version ...), and CGAL 3.7 also compiled by myself.

Do you have any idea on what the problem is?

Regards,

Asher