Working on the error in the hierarchy and removing compiler warnings

Periodic_2_triangulation_2/examples/Periodic_2_triangulation_2/p2t2_simple_example.cpp

@@ -2,7 +2,6 @@
 #include <CGAL/Periodic_2_triangulation_traits_2.h>
 #include <CGAL/Periodic_2_Delaunay_triangulation_2.h>
 
-#include <iostream>
 #include <fstream>
 #include <cassert>
 #include <list>
@@ -21,37 +20,29 @@ typedef PDT::Iso_rectangle     Iso_rectangle;
 
 int main()
 {
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   Iso_rectangle domain(-1, -1, 2, 2); // The cube for the periodic domain
 
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   // construction from a list of points :
   std::list<Point> L;
   L.push_front(Point(0, 0));
   L.push_front(Point(1, 0));
   L.push_front(Point(0, 1));
 
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   PDT T(L.begin(), L.end(), domain); // Put the domain with the constructor
 
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
+  size_t n = T.number_of_vertices();
-  int n = T.number_of_vertices();
 
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   // insertion from a vector :
   std::vector<Point> V(3);
   V[0] = Point(0, 0);
   V[1] = Point(1, 1);
   V[2] = Point(-1, -1);
 
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   n = n + T.insert(V.begin(), V.end());
 
   assert( n == 5 );       // 6 points have been inserted, one is a duplicate
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   assert( T.is_valid() ); // checking validity of T
 
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   Locate_type lt;
   int li;
   Point p(0, 0);
@@ -60,35 +51,26 @@ int main()
   assert( lt == PDT::VERTEX );
   assert( fh->vertex(li)->point() == p );
 
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   Vertex_handle v = fh->vertex( (li + 1) % 3 );
   // v is another vertex of c
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   Face_handle nb = fh->neighbor(li);
   // nb = neighbor of fh opposite to the vertex associated with p
   // nb must have vertex v :
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   int nli;
   assert( nb->has_vertex( v, nli ) );
   // nli is the index of v in nc
 
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   std::ofstream oFileT("output.tri", std::ios::out);
   // writing file output;
   oFileT << T;
 
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   PDT T1;
   std::ifstream iFileT("output.tri", std::ios::in);
   // reading file output;
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   iFileT >> T1;
   assert( T1.is_valid() );
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   assert( T1.number_of_vertices() == T.number_of_vertices() );
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
   assert( T1.number_of_faces() == T.number_of_faces() );
-  std::cout << __FILE__ << ", " << __LINE__ << std::endl;
 
   return 0;
 }

Periodic_2_triangulation_2/include/CGAL/Periodic_2_Delaunay_triangulation_2.h

@@ -1107,7 +1107,7 @@ remove(Vertex_handle v)
       CGAL_assertion(this->virtual_vertices_reverse().find(v) != this->virtual_vertices_reverse().end());
 
       const std::vector<Vertex_handle> &virtual_copies = this->virtual_vertices_reverse().find(v)->second;
-      for (size_t i = 0; i < 8; ++i)
+      for (int i = 0; i < 8; ++i)
         {
           remove_single_vertex(virtual_copies[i], Offset((i + 1) / 3, (i + 1) % 3));
         }

Periodic_2_triangulation_2/include/CGAL/Periodic_2_triangulation_2.h

@@ -4343,6 +4343,8 @@ Periodic_2_triangulation_2<Gt, Tds>::save(std::ostream& os) const
     }
   std::cout << "Line:" << __LINE__ << " cover[0]:" << cover[0] << " cover[1]:" << cover[1] << " n*c0*c1:" << (n * cover[0]*cover[1]) << std::endl;
 
+  std::cout << "save, #Vertices: " << n << std::endl;
+
   if (n == 0)
     return os;
 
@@ -4354,7 +4356,7 @@ Periodic_2_triangulation_2<Gt, Tds>::save(std::ostream& os) const
       for (Vertex_iterator it = vertices_begin(); it != vertices_end(); ++it)
         {
           V[it] = i++;
-          os << it->point();
+          os << (*it);
           if (is_ascii(os))
             os << std::endl;
         }
@@ -4415,7 +4417,7 @@ Periodic_2_triangulation_2<Gt, Tds>::save(std::ostream& os) const
   if(is_ascii(os)) os << "\n";
 
   std::cout << "save, face check: " << inum << " == " << m << std::endl;
-  CGAL_assertion(inum == m);
+  CGAL_assertion(m == (size_type)inum);
 
   // neighbor pointers of the  faces
   for( Face_iterator it = faces_begin();

Periodic_2_triangulation_2/include/CGAL/Periodic_2_triangulation_hierarchy_vertex_base_2.h

@@ -80,6 +80,25 @@ private:
   Vertex_handle  _down;  // same vertex one level below
 };
 
+template < class Tds >
+inline
+std::istream&
+operator>>(std::istream &is, Periodic_2_triangulation_hierarchy_vertex_base_2<Tds> &)
+// no combinatorial information.
+{
+  return is;
+}
+
+template < class Tds >
+inline
+std::ostream&
+operator<<(std::ostream &os,
+           const Periodic_2_triangulation_hierarchy_vertex_base_2<Tds> &)
+// no combinatorial information.
+{
+  return os;
+}
+
 } //namespace CGAL
 
 #endif // CGAL_PERIODIC_2_TRIANGULATION_HIERARCHY_VERTEX_BASE_2_H