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Re: [cgal-discuss] Re: Crash with Nef_Polyhedrons


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  • From: "Sebastien Loriot (GeometryFactory)" <>
  • To:
  • Subject: Re: [cgal-discuss] Re: Crash with Nef_Polyhedrons
  • Date: Tue, 29 May 2012 17:52:46 +0200

On 05/29/2012 11:35 AM, antoine wrote:
Ok, I reviewed my program a bit , considering what you said about the
overflow that could be caused (thanks for that :) ) :
- The points I used were generated via the Apolonius graph, and some of them
were really far away (on the borders). I removed those.
- I set the kernel type to :

typedef CGAL::Filtered_extended_homogeneous<long long int>
CGAL_ExtendedKernel;

instead of

typedef CGAL::Filtered_extended_homogeneous<int>
CGAL_ExtendedKernel;

and now, the join() call seems to work fine. The issue is probably not
entirely solved, and I may run into it again, but it should work for a
while. Ideally, I would like to use gmpz (or is long long int sufficient?).

About this, I'm using the gmp and mpfr libs included with CGAL 3.9's
installer, and renamed them (For some reason, the app required
gmp-vc100-mt.lib and mpfr-vc100-mt.lib). The fact that my app crashes as
soon as I use it tells me that something might be wrong with my gmp version,
but I don't know what, nor how to check it..

I know this issue has already been answer on this list.
Also, if you try CGAL 4.0 you should not have such a problem.

Sebastien.

.

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