CGAL users discussion list

[Marc Glisse <>]

On Mon, 14 Apr 2014, Olivier BARTHELEMY wrote:

> I am getting compilation errors in my project with CGAL 4.4 when building a
> windows 32bit executable in MSVC 2010. In that configuration, it seems
> _BitScanForward64 and _BitScanReverse64, used in mpzf.h are not available
> (as seen here :
> http://msdn.microsoft.com/en-us/library/wfd9z0bb(v=vs.100).aspx, the 64bit
> versions are not available on x86). Building with CGAL_DO_NOT_USE_MPZF macro
> seems to solve the compilation problem, but i think #ifdef checks in that
> header could be tweaked to avoid using it when the intrinsic is not
> available

Hello,

the file already checks:
GMP_NUMB_BITS == 64
(defined in gmp.h)

how did you end up with that in a 32 bit build?

--
Marc Glisse