CGAL 5.6.1  Surface Mesh Topology

The concept WeightFunctor
defines a functor to calculate the weight of an edge.
Public types  
typedef unspecified_type  halfedge_descriptor 
A descriptor to Dart for combinatorial/generalized maps, or a halfedge descriptor for models of the FaceGraph concept.  
using  Weight_t = unspecified_type 
Number type of the weights.  
Public member functions  
Weight_t  operator() (halfedge_descriptor hd) const 
Returns the weight of the edge containing hd .  