/**
* \ingroup python_interface_edgeseq
* \brief Returns the length of the sequence (i.e. the number of edges in the graph)
*/
int igraphmodule_EdgeSeq_sq_length(igraphmodule_EdgeSeqObject* self) {
igraph_t *g;
igraph_integer_t result;
g=&GET_GRAPH(self);
if (igraph_es_size(g, &self->es, &result)) {
igraphmodule_handle_igraph_error();
return -1;
}
return (int)result;
}
int main() {
igraph_t g;
long int i;
igraph_integer_t size;
/* DIRECTED */
igraph_star(&g, 10, IGRAPH_STAR_OUT, 0);
for (i=0; i<100; i++) {
igraph_es_t es;
igraph_eit_t it;
igraph_es_pairs_small(&es, IGRAPH_DIRECTED,
0,1,0,2,0,5,0,2,0,3,0,4,0,7,0,9, -1);
igraph_eit_create(&g, es, &it);
igraph_es_size(&g, &es, &size);
IGRAPH_EIT_RESET(it);
while (!IGRAPH_EIT_END(it)) {
IGRAPH_EIT_GET(it);
IGRAPH_EIT_NEXT(it);
size--;
}
if (size != 0) return 1;
igraph_eit_destroy(&it);
igraph_es_destroy(&es);
}
igraph_destroy(&g);
/* UNDIRECTED */
igraph_star(&g, 10, IGRAPH_STAR_UNDIRECTED, 0);
for (i=0; i<100; i++) {
igraph_es_t es;
igraph_eit_t it;
igraph_es_pairs_small(&es, IGRAPH_DIRECTED,
0,1,2,0,5,0,0,2,3,0,0,4,7,0,0,9, -1);
igraph_eit_create(&g, es, &it);
IGRAPH_EIT_RESET(it);
while (!IGRAPH_EIT_END(it)) {
IGRAPH_EIT_GET(it);
IGRAPH_EIT_NEXT(it);
}
igraph_eit_destroy(&it);
igraph_es_destroy(&es);
}
igraph_destroy(&g);
return 0;
}
int EdgeSelector::size(const Graph &graph) const noexcept {
int result;
SafeCall(igraph_es_size(graph.ptr(), ptr(), &result));
return result;
}