Re: [Boost-users] Getting vertices names.

From: Jeremy Siek (jsiek_at_[hidden])
Date: 2004-02-24 10:58:48

Hi Maxx,

 From what you've posted, I can't tell what the problem is.
If you post a short but complete program exhibiting the problem
I'll take a look.

Cheers,
Jeremy

On Feb 24, 2004, at 8:42 AM, Maxx Sloyko wrote:

>     Hi there!
>
> May be I'm asking something unbeleivably stupid, but anyway here is my
> problem.
> I need to get the names of all vertices in the graph (It is
> GraphvizDigraph), so
> ----------------------------------------------------
> using namespace boost;
> property_map< GraphvizDigraph,
> 		vertex_name_t>::type&
> 		vn = get(vertex_name, g);
> graph_traits<GraphvizDigraph>::vertex_iterator i;
>
> for(i = vertices(g).first; i != vertices(g).second; ++i )
> {
>         std::cout<< vn[*i]<<endl;
> }
> ----------------------------------------------------
>
> And here is the error I got:
> ----------------------------------------------------
> c:\Documents and Settings\MAKC\My Documents\Visual Studio
> Projects\Graph\MyGraph.cpp(61) : error C2679: binary '<<' : no operator
> found which takes a right-hand operand of
> type  
> 'boost::vec_adj_list_any_vertex_pa::bind_<Tag,Graph,Property>::value
> _type' (or there is no acceptable conversion)
>         with
>         [
>             Tag=boost::vertex_name_t,
> Graph=boost::detail::subgraph_any_pmap::bind_<boost:: 
> vertex_name_t,boost:
> :GraphvizDigraph,boost::detail::vertex_property_map<boost:: 
> GraphvizDigrap
> h,boost::vertex_name_t>::Property>::Graph,
>
> Property=boost::detail::vertex_property_map<boost::detail:: 
> subgraph_any_p
> map::bind_<boost::vertex_name_t,boost::GraphvizDigraph,boost::detail:: 
> ver
> tex_property_map<boost::GraphvizDigraph,boost::vertex_name_t>:: 
> Property>:
> :Graph,boost::vertex_name_t>::Property
>         ]
> -----------------------------------------------------
>
>
> Since this code is almost "CopyPasted" from the library example,
> my beleif is that it should work. At what point I have to change my
> worldview? :)
>
> Thanks in advance.
>
>
> -------------------------------------
> |your sincerely, Maxx,              |
> |          mailto:maxxua_at_[hidden]  |
> -------------------------------------
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
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>
_______________________________________________
Jeremy Siek <jsiek_at_[hidden]>
http://www.osl.iu.edu/~jsiek
Ph.D. Student, Indiana University Bloomington
C++ Booster (http://www.boost.org)
Office phone: [phone]
_______________________________________________