Re: [igraph] igraph_neighborhood_graphs

[Tamas Nepusz]

Hi Tom,

> I need to create a graph from the igraph_vector_ptr_t structure generated by 
> igraph_neighborhood_graphs. I am unsure how to do this in C as there do not 
> seem to be constructors for this purpose.
igraph_vector_ptr_t contains pointers; in this particular case, each pointer in 
the igraph_vector_ptr_t you get points to an already initialized igraph_t 
object. There is no need to call a constructor (but you still have to destroy 
the graph properly once you're done with it).

-- 
Tamas