CGAL users discussion list

[Sylvain Pion <>]

Did you check that triangulation_.dimension() == 3 ?

2017-04-07 9:27 GMT+02:00 Andreas Fabri <>:

Did you check that the triangulation as a whole is valid?

andreas


On 07/04/2017 09:03, Thomas Holzmann wrote:

Hi,

I get a weird segmentation fault and I really don't know why. Here is my
code:

if (triangulation_.is_valid(currCell))
{
    for (int k = 0; k < 4; k++)
        cellsToProcess.push(currCell->neighbor(k)); // when accessing
neighbor -> segfault
}

where triangulation_ is a
CGAL::Triangulation_3<CGAL::Exact_predicates_exact_constructions_kernel,
Tds_info>. and currCell is a Cell_handle.

I'm checking the validity of currCell, so the neighbors should exist,
right?

Does someone have an idea why that could happen or how to check the
validity of the neighbors  before accessing it in another way?

Thomas

--
Andreas Fabri, PhD
Chief Officer, GeometryFactory
Editor, The CGAL Project

phone: +33.492.954.912    skype: andreas.fabri

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