[Boost-users] BGL edge properties

From: marina mentelmacher (romanm1_at_[hidden])
Date: 2007-01-17 01:47:46

Hi,

 

I didn’t find a way to define BGL adjacency_list without property pointer on edges. I suppose it’s a bug.

It’s edge_descriptor is defined as follows:

 
typedef detail::edge_desc_impl<directed_category, vertex_descriptor>
      edge_descriptor;

 

and

 

    template <typename Directed, typename Vertex>

    class edge_desc_impl  : public edge_base<Directed,Vertex> {

      typedef edge_desc_impl                              self;

      typedef edge_base<Directed,Vertex> Base;

    public: 

      typedef void                              property_type;

      

      inline edge_desc_impl() : m_eproperty(0) {} 

      

      inline edge_desc_impl(Vertex s, Vertex d, const property_type* eplug)

        : Base(s,d), m_eproperty(const_cast<property_type*>(eplug)) { }

      

      property_type* get_property() { return m_eproperty; }

      const property_type* get_property() const { return m_eproperty; }

      

      //  protected:

      property_type* m_eproperty;

    };

 

I think that edge_descriptor should be derived directly from edge_base.

 

Regards,

Roman.