CGAL users discussion list

[Andreas Fabri <>]

Jeronymo Peixoto Athayde Pereira wrote:
> Hi,
>
> I have been using Exact_predicates_exact_constructions_kernel with CGAL-3.0.1 
> without problems. Recently, I have switched to CGAL-3.2.1 and my code does 
> not compile any more.
>
> The part of the code that does not compile is as follows
>
> .
> .
>
> #include <CGAL/Exact_predicates_exact_constructions_kernel.h>
>
> .
> .
>
> typedef CGAL::Exact_predicates_exact_constructions_kernel<double> Kernel;

Remove the <double> as it IS NOT a template, just as the compiler says.
And then let's have a look at the next error mesages.

andreas



> The compiler issues the following error message
>
> buildcrack_cgal.h:115:* error:  
> CGAL::Exact_predicates_exact_constructions_kernel is not a template*
>
> I took a look at the CGAL/Exact_predicates_exact_constructions_kernel.h in 
> which we have
>
> typedef Filtered_kernel<Simple_cartesian<Lazy_exact_nt<Quotient<MP_Float> > > 
> >
>         Exact_predicates_exact_constructions_kernel;
>
> So, I tried:
>
> #include <CGAL/Simple_cartesian.h>
> #include <CGAL/Filtered_kernel.h>
> #include <CGAL/Lazy_exact_nt.h>
> typedef 
> CGAL::Filtered_kernel<CGAL::Simple_cartesian<CGAL::Lazy_exact_nt<CGAL::Quotient<realType>
>  > > > Kernel
>
> It works but it does not compile other parts of the code. 
>
> I also tried to compile with Simple_Cartesian and it compiles without 
> problems but I need to used Exact_predicates_exact_constructions_kernel in my 
> code.
>
> By the way, I am using  *g++ (GCC) 4.1.2 20061115 (prerelease) (SUSE Linux).
>
> *Does anyone know why I'm having this problem?
>
> Thanks a lot!
>
> JP