Function motifs_randesu_callback 

pub fn motifs_randesu_callback<F>(
    graph: &Graph,
    size: u32,
    callback: F,
) -> IgraphResult<()>
where
    F: FnMut(&[VertexId], u32) -> IgraphResult<bool>,

Enumerate all connected induced subgraphs of the given size and call callback(vids, isoclass) for each one.

The callback returns Ok(true) to continue or Ok(false) to stop.

Arguments

• graph — the input graph.
• size — motif size (3 or 4 for directed; 3, 4, or 5 for undirected).
• callback — called with (vertex ids, isomorphism class) for each motif.

Examples

use rust_igraph::{Graph, motifs_randesu_callback};

// K3 undirected has exactly one size-3 motif (the triangle).
let mut g = Graph::with_vertices(3);
g.add_edge(0, 1).unwrap();
g.add_edge(1, 2).unwrap();
g.add_edge(0, 2).unwrap();
let mut count = 0u32;
motifs_randesu_callback(&g, 3, |_vids, _class| { count += 1; Ok(true) }).unwrap();
assert_eq!(count, 1);