CGAL users discussion list

[Monique Teillaud <>]

Le 12/05/15 16:15, Tom Van Doorsselaere a écrit :
> I have also used the clang++ compiler and icpc compiler (for CGAL and
> the demo program). For both of these compilers I get the same assertion
> fault.
>
> Monique, what versions of CGAL and clang compiler did you use?

see the email that I sent yesterday (the inclusion is still visible below)

> On 05/12/15 15:39, Tom Van Doorsselaere wrote:
> > As promised, I have tested the code on two computers, with different
> > versions of gcc (4.4.7 and 4.9.2) and with different combinations of
> > flags. However, I always get stuck at the assertion violation.
> >
> > I have also tried CGAL version 4.3 and 4.0.2.
> >
> > I have further simplified the example (so it doesn't need gnu++0x
> > anylonger, and fixing the space Monique pointed out). Now it compiles with
> > g++ -frounding-math -lCGAL -lgmp -o testreadin testreadinwriteout.cpp
> > but the problem persists.
> >
> > After running
> > -----------------
> > > > ./testreadin --write
> > writing out triangulationGelukt
> > -----------------
> > the reading in of the triangulation fails:
> >
> > -----------------
> > > > ./testreadin --read
> > terminate called after throwing an instance of 'CGAL::Assertion_exception'
> >    what():  CGAL ERROR: assertion violation!
> > Expr: false
> > File: /usr/include/CGAL/Triangulation_3.h
> > Line: 5330
> > reading in triangulationAborted
> > -----------------
> >
> > I will look into compiling CGAL with clang or icc. However, in the end,
> > I suppose I would like to use gcc, because it is readily available on
> > most systems.
> >
> > Can anybody reproduce the assertion using gcc on their computer?
> >
> > Thanks,
> >
> > Tom
> >
> >
> > On 05/12/15 09:33, Tom Van Doorsselaere wrote:
> > > Dear Monique,
> > >
> > > Thanks for your e-mail.
> > >
> > > This is very interesting indeed. It thus means that
> > > - either it is a compiler issue,
> > > - or I am forgetting a compiler flag or have a flag too much.
> > >
> > > I will try this afternoon with different versions of gcc and with a
> > > combination of flags.
> > >
> > > Thanks for your input! I had not thought in this direction.
> > >
> > > Tom
> > >
> > >
> > > On 05/11/15 19:14, Monique Teillaud wrote:
> > > > Le 08/05/15 17:27, Tom Van Doorsselaere a écrit :
> > > > > Dear CGAL enthousiasts,
> > > >
> > > > :)
> > > > Dear Tom,
> > > >
> > > > > I'm building a program for the rendering of emission of solar coronal
> > > > > models.
> > > >
> > > > This sounds very interesting.
> > > >
> > > > I tested your code on my laptop, with CGAL 4.6, both release and debug
> > > > modes, clang 5.0.
> > > >
> > > > I had to add a space line 61 to avoid the consecutive >>
> > > > vector<vector<double> > allvar;
> > > > Then it compiled.
> > > >
> > > > teillaud@tzitziki:~/CGAL/test >./testreadinwriteout --write
> > > > writing out triangulationGelukt
> > > > teillaud@tzitziki:~/CGAL/test >./testreadinwriteout --read
> > > > reading in triangulationGelukt
> > > >
> > > > If I understand correctly, this is the result that you expect. It seems
> > > > to work like a charm...
> > > >
> > > > Best regards,


--
Monique Teillaud
http://www.loria.fr/~teillaud/
INRIA Nancy - Grand Est, LORIA
Institut National de Recherche en Informatique et Automatique