igraph_adjlist_replace_edge

igraph

Function igraph_adjlist_replace_edge 

Source 
pub unsafe extern "C" fn igraph_adjlist_replace_edge(
    al: *mut igraph_adjlist_t,
    from: igraph_int_t,
    oldto: igraph_int_t,
    newto: igraph_int_t,
    directed: igraph_bool_t,
) -> igraph_error_t