[Boost-users] Problem in using bundled properties with transitive closure

From: abhishek.v_at_[hidden]
Date: 2007-12-07 04:36:08

Hi 

I m able to use the transitive closure using simple definition of adj_list 
as

typedef adjacency_list <setS, vecS, bidirectionalS, property 
<vertex_name_t, std::string>, property <edge_weight_t, int> > Graph;

and then calling 

transitive_closure(g, TC);

graph_traits <Graph>::vertex_iterator vi, vend;
 for (tie(vi, vend) = vertices(TC); vi != vend; ++vi) 
    {
        file_op << "\n " << vertices_name[*vi] ;
    }

Gives me correct output.

o/p :- A
           B
           C
           D
Where A,B,C,D represent name of the vertices 

But when i try to the graph in bundled properties like

struct Process
{
  string name;
};

typedef adjacency_list <setS, vecS, bidirectionalS,Process, property 
<edge_weight_t, int> > Graph;

transitive_closure(g, TC);

graph_traits <Graph>::vertex_iterator vi, vend;
 for (tie(vi, vend) = vertices(TC); vi != vend; ++vi) 
    {
        file_op << "\n " << TC[*vi].name ;
    }

Gives me correct output.

o/p :-
 
 
Means in the second case it returns me empty string for the name of the 
vertices what could be the reason for this.

Kindly help 

Thanks in Advance
Abhishek Vyas
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