CGAL users discussion list

[Sylvain Pion <>]

torchi borchi wrote:
> i followed your suggestion and tried this:
>
> typedef CGAL::Gmpq RT;
> typedef CGAL::Simple_cartesian<RT> K;
>
> but it still crashes. is Gmpq using reference counting?

Yes, it uses the same thread-unsafe mechanism.

> i need exact constructions.

Try mpq_class instead of Gmpq ?
Or Quotient<MP_Float>, but that can be much slower.

Otherwise, someone needs to bite the bullet and fix
the reference counting mechanism (in <CGAL/Handle_for.h>).

--
Sylvain Pion
INRIA Sophia-Antipolis
Geometrica Project-Team
CGAL, http://cgal.org/