2.1. igraph_vs_all — Vertex set, all vertices of a graph.

int igraph_vs_all(igraph_vs_t *vs);

Arguments:

vs:

Pointer to an uninitialized igraph_vs_t object.

Returns:

Error code.

See also:

igraph_vss_all().

This selector includes all vertices of a given graph in increasing vertex id order.

Time complexity: O(1).