I have a Graph
type which satisfies concepts:
boost::function_requires<boost::GraphConcept<Graph> >();
boost::function_requires<boost::IncidenceGraphConcept<Graph> >();
boost::function_requires<boost::BidirectionalGraphConcept<Graph> >();
boost::function_requires<boost::VertexListGraphConcept<Graph> >();
boost::function_requires<boost::AdjacencyGraphConcept<Graph> >();
when i make a reverse adaptor:
boost::make_reverse_graph(g);
i receive such errors:
'edges_size_type' : is not a member of 'boost::graph_traits<Graph>'
'edge_property_type' : is not a member of 'Graph'
'vertex_property_type' : is not a member of 'Graph'
Why does reverse_graph
requires edges_size_type
?
edges_size_type
isn't in BidirectionalGraph
, VertexListGraph
, PropertyGraph
.
it is in EdgeListGraph
concept.
reverse_graph
requires Graph
to be BidirectionalGraph and optionally VertexListGraph and PropertyGraph
.
What does optionally
mean? My graph is not a PropertyGraph
. I just want to revert edges.