CGAL users discussion list

[Sylvain Pion <>]

Stefan Uhrig a écrit :
> running the following code leads to an assertion failure on my machine:
>
> #include <CGAL/basic.h>
> #include <CGAL/MP_Float.h>
>
> int main()
> {
>   double d = 0.49999237058324297;
>   CGAL::MP_Float mpf(d);
> }
>
> I've tested the code with CGAL 3.2.1 and 3.3 under Windows XP with VS 2005.
> There seems to be a problem with the conversion of the above value. Is there
> a bug in MP_Float::construct_from_builtin_fp_type(T d) or have I done
> something wrong?

I can reproduce it as well.
I'll take a look at it as time permits.


In the mean time, you may be able to work around it
by doing something like:

int main()
{
  double d = 0.49999237058324297 / 2;
  CGAL::MP_Float mpf(d);
  mpf = mpf * 2;
}

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

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