[Boost-users] [BGL, Graph] listS and property maps

Hi, I'm new to the BGL and I'm trying to use the strong_components algorithm, defined this way: template <class Graph, class ComponentMap, class P, class T, class R> typename property_traits<ComponentMap>::value_type strong_components(Graph& g, ComponentMap comp, const bgl_named_params<P, T, R>& params = all defaults) with a graph defined like this: typedef adjacency_list<listS,listS,directedS> Graph; (in particular using listS for vertices storage). Does anyone know how I should declare the ComponentMap property map? I couldn't figure this out from the documentation and the examples I've seen all assume that a vecS type storage is used for vertices in the graph. Thanks! Stephane