Class Ograph_simple.ograph_mutable

method add_node : 'key -> 'node -> unit
method del_node : 'key -> unit
method replace_node : 'key -> 'node -> unit
method add_node_if_not_present : 'key -> 'node -> unit
method add_arc : ('key * 'key) -> 'edge -> unit
method del_arc : ('key * 'key) -> 'edge -> unit
method nodes : ('key, 'node) Oassoc.oassoc
method successors : 'key -> ('key * 'edge) Oset.oset
method predecessors : 'key -> ('key * 'edge) Oset.oset
method allsuccessors : ('key, ('key * 'edge) Oset.oset) Oassoc.oassoc
method del_leaf_node_and_its_edges : 'key -> unit
method ancestors : 'key -> 'key Oset.oset
method leaf_nodes : unit -> 'key Oset.oset