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[Paul Neugebauer <>]

Hi list,

I have got a strange problem with the Arrangement_2 IO. Here is a part 
of my program:

   ...
   Naive_pl    naive_pl(arr);

       point_location_query(naive_pl, source);

   // Write the arrangement to a file
   std::ofstream    out_file("output/arr_io.dat");
   Formatter    formatter;

   write(arr, out_file, formatter);
   out_file.close();

   // Read the arrangement from a file
   std::ifstream in_file2("output/arr_io.dat");
   Arrangement_2    arr2;

   read(arr2, in_file2, formatter);
   in_file2.close();
   assert(arr2.is_valid());

   Naive_pl    naive_pl2(arr2);

       point_location_query(naive_pl2, source);
   ...

The ouput is: The point is located inside the UNBOUNDED face
                       The point is located inside the BOUNDED face

But it is the same point: source
If I use naive_pl for the second point_location_query again, like this:

       point_location_query(naive_pl, source);

everything is ok.

Any idea anybody ?

Thanks,
paul