Function cycle_graph 

pub fn cycle_graph(n: u32, directed: bool, mutual: bool) -> IgraphResult<Graph>

Cycle graph C_n: convenience wrapper for ring_graph(n, directed, mutual, true).

Examples

use rust_igraph::cycle_graph;

let c4 = cycle_graph(4, false, false).unwrap();
assert_eq!(c4.ecount(), 4);