|igraph Reference Manual|
void igraph_vs_destroy(igraph_vs_t *vs);
This function should be called for all vertex selectors when they
are not needed. The memory allocated for the vertex selector will
be deallocated. Do not call this function on vertex selectors
created with the immediate versions of the vertex selector
constructors (starting with
Pointer to a vertex selector object.
Time complecity: operating system dependent, usually O(1).
|<< 3. Generic vertex selector operations||3.2.