Hi everyone,

In the documentation it is stated for the "CSRG" that the template parameter must obey the following :

 "A graph type modeling VertexMutableGraph
  and EdgeMutableGraph. Also
  the graph must have internal vertex_index and
  edge_index properties. The vertex indices must be maintained
  automatically by the graph, whereas the edge indices will be
  assigned by the subgraph class implementation"

Does this mean that I can not "extract" subgraphs from a Compressed Sparse Row Graph ??

Jacques

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