CGAL users discussion list

["Laurent Rineau (CGAL/GeometryFactory)" <>]

Le Wednesday, July 11, 2018 3:25:32 PM CEST Zesen Qian a écrit :
> Hi list,
> 
> So I'm trying to use the undocumented remove_self_intersection()
> function, here is my short program:
> 
> #include <iostream>
> #include <fstream>
> 
> #include <CGAL/Surface_mesh.h>
> #include <CGAL/Exact_predicates_exact_constructions_kernel.h>
> #include <CGAL/Polygon_mesh_processing/repair.h>
> 
> typedef CGAL::Exact_predicates_exact_constructions_kernel T;
> typedef T::Point_3 Point;
> typedef CGAL::Surface_mesh<Point> Mesh;
> 
> namespace PMP = CGAL::Polygon_mesh_processing;
> 
> int main(int argc, char *argv[]) {
>   std::ifstream inS(argv[1]);
> 
>   Mesh in;
>   inS >> in;
> 
>   bool ret = PMP::remove_self_intersections(in);
> 
>   std::ofstream outS(argv[2]);
>   outS.precision(17);
>   outS << in;
>   return !ret;
> }
> 
> The command used to build(clang++ 6.0.0) is:
> 
> /usr/bin/c++ '-DCGAL_USE_CORE=1' -DCGAL_USE_GMP -DCGAL_USE_MPFR
> -I/usr/local/include/eigen3 -isystem /usr/local/include
> -I/usr/home/riaqn/doll/codes/cxx/build -O3 -DNDEBUG '-std=gnu++1z' -o
> CMakeFiles/fix.dir/fix.cxx.o -c /usr/home/riaqn/doll/codes/cxx/fix.cxx
> 
> The error shown is:
> 
> In file included from /usr/home/riaqn/doll/codes/cxx/fix.cxx:4: In
> file included from /usr/local/include/CGAL/Surface_mesh.h:27: In file
> included from /usr/local/include/CGAL/Surface_mesh/Surface_mesh.h:46:
> /usr/local/include/CGAL/property_map.h:483:5: error: use of undeclared
> identifier 'CGAL_assertion' CGAL_assertion(pm.set_ptr!=NULL); ^
[...]
> Any comment would be much appreciated.

Hi, there is indeed a bug in CGAL. It will be fixed in a future version of 
CGAL.

As a workaround, you can add the following line:

    #include <CGAL/assertions.h>

before the include of <CGAL/Surface_mesh.h>.

-- 
Laurent Rineau, PhD
R&D Engineer at GeometryFactory           http://www.geometryfactory.com/
Release Manager of the CGAL Project       http://www.cgal.org/