Re: [Boost-users] How to access a GRAPH property? - simple

Subject: Re: [Boost-users] How to access a GRAPH property? - simple
From: Jeremiah Willcock (jewillco_at_[hidden])
Date: 2010-08-14 15:05:25

On Fri, 13 Aug 2010, Mike Douglass wrote:

> I have
> 
> struct vertex_properties
> {
>     blah blah
> }
> 
> struct edge_properties
> {
>     blah blah
> }
> 
> struct graph_properties
> {
> 
>   int bobo;
> 
> }
> 
> 
> typedef adjacency_list < vecS, vecS, bidirectionalS,
>         property< vertex_predecessor_t, vertex_t, vertex_properties >,
>         property< edge_reverse_t, edge_t, edge_properties >,
>         graph_properties
>                 > graph_t;
> 
> graph_t g;
> 
> But how can I access bobo?
> 
> g.bobo; does not compile (otherwise compiles OK).

To get the graph property, you can use the get_property() function, 
documented at 
<URL:http://www.boost.org/doc/libs/1_43_0/libs/graph/doc/adjacency_list.html> 
(near the bottom).  Bundled graph properties are new (just added to the 
trunk in the past few weeks); I believe the syntax for those is 
"g[graph_bundle].bobo".

-- Jeremiah Willcock