CGAL users discussion list

[Cody Rose <>]

In Visual Studio 2010, the code:

#include "CGAL/CORE_Expr.h"
#include "CGAL/Cartesian.h"
#include "CGAL/Nef_polyhedron_3.h"

typedef CGAL::Cartesian<CORE::Expr>    K;
typedef CGAL::Nef_polyhedron_3<K>    nef;

int main() {
    nef foo;
}

compiles in Release mode but not Debug mode. The error is

cgal\nef_s2\normalizing.h(307): error C2676: binary '*=' : 
'CGAL::Null_tag' does not define this operator or a conversion to a type 
acceptable to the predefined operator

many times. Someone else on this mailing list had this problem back in 
2008, but that was resolved by switching kernels. However, I need square 
roots, and therefore (as I understand it) the only number types I can 
use are CORE::Expr and leda_real. I'm getting vastly better performance 
with CORE::Expr so I would really like to avoid leda_real. The fact that 
this works fine in Release mode indicates to me that there must be some 
way to get it to work in Debug mode, but the earlier thread didn't 
discuss why that might be.

Thanks,
Cody