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[tang <>]

Dear Sebastien,

Thank you very much for your kindly reply. I modified the code as you
suggested, however, there are still some errors when compiling, could you
please help me to take a look at it?


Thanks,
Zhanghong Tang

#include <CGAL/Polyhedron_incremental_builder_3.h>
#include <CGAL/Polyhedron_3.h>
#include <CGAL/Polyhedron_items_with_id_3.h>
#include <CGAL/IO/Polyhedron_iostream.h>
#include <CGAL/IO/Nef_polyhedron_iostream_3.h>  
#include <CGAL/Exact_predicates_exact_constructions_kernel.h>
#include <CGAL/Nef_polyhedron_3.h>

#include "math.h"
#include <iostream>
#include <istream>
#include <fstream>  

using namespace std;  
class MyPolyhedron_items_with_id_3 {
public:
     template < class Refs, class Traits>
     struct Vertex_wrapper {
         typedef typename Traits::Point_3 Point;
         typedef HalfedgeDS_vertex_max_base_with_id< Refs,
Point,std::size_t> Vertex;
     };
     template < class Refs, class Traits>
     struct Halfedge_wrapper {
         typedef HalfedgeDS_halfedge_max_base_with_id<Refs, std::size_t>
Halfedge;
     };
     template < class Refs, class Traits>
     struct Face_wrapper {
         typedef HalfedgeDS_face_max_base_with_id< Refs,
Tag_true,std::size_t>  Face;
     };
};

typedef CGAL::Exact_predicates_exact_constructions_kernel    Kernel;
typedef Kernel::Point_3 Point_3;
typedef Kernel::Line_3 Line_3;
typedef CGAL::Nef_polyhedron_3<Kernel>                Nef_polyhedron;
typedef CGAL::Polyhedron_3<Kernel,CGAL::Polyhedron_items_with_id_3>       
Polyhedron;
typedef Polyhedron::HalfedgeDS HalfedgeDS;
typedef Kernel::Plane_3 Plane_3;
typedef Polyhedron::Vertex Vertex;
typedef Polyhedron::Vertex_iterator Vertex_iterator;
typedef Polyhedron::Vertex_handle Vertex_handle ;
typedef Polyhedron::Facet_iterator Facet_iterator;
typedef Polyhedron::Halfedge_handle Halfedge_handle;
typedef Polyhedron::Halfedge_around_vertex_circulator
Halfedge_vertex_circulator;
typedef Polyhedron::Halfedge_around_facet_circulator
Halfedge_facet_circulator;
typedef Nef_polyhedron::Aff_transformation_3 Aff_transformation_3;
typedef Nef_polyhedron::Vector_3 Vector_3;


The errors are as follows:
2>CSGlib.cpp(37): error C2143: syntax error : missing ';' before '<'
2>          CSGlib.cpp(38) : see reference to class template instantiation
'MyPolyhedron_items_with_id_3::Vertex_wrapper<Refs,Traits>' being compiled
2>CSGlib.cpp(37): error C4430: missing type specifier - int assumed. Note:
C++ does not support default-int
2>CSGlib.cpp(37): error C2238: unexpected token(s) preceding ';'
2>CSGlib.cpp(41): error C2143: syntax error : missing ';' before '<'
2>          CSGlib.cpp(42) : see reference to class template instantiation
'MyPolyhedron_items_with_id_3::Halfedge_wrapper<Refs,Traits>' being compiled
2>CSGlib.cpp(41): error C4430: missing type specifier - int assumed. Note:
C++ does not support default-int
2>CSGlib.cpp(41): error C2238: unexpected token(s) preceding ';'
2>CSGlib.cpp(45): error C2143: syntax error : missing ';' before '<'
2>          CSGlib.cpp(46) : see reference to class template instantiation
'MyPolyhedron_items_with_id_3::Face_wrapper<Refs,Traits>' being compiled
2>CSGlib.cpp(45): error C4430: missing type specifier - int assumed. Note:
C++ does not support default-int
2>CSGlib.cpp(45): error C2238: unexpected token(s) preceding ';'





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