sig
type t = Cil2cfg.node_type Pervasives.ref
val hash : Cil2cfg.node_type Pervasives.ref -> int
val equal :
Cil2cfg.node_type Pervasives.ref ->
Cil2cfg.node_type Pervasives.ref -> bool
val compare :
Cil2cfg.node_type Pervasives.ref ->
Cil2cfg.node_type Pervasives.ref -> int
val stmt_opt : Cil2cfg.node_type Pervasives.ref -> Cil_types.stmt option
val stmt : Cil2cfg.node_type Pervasives.ref -> Cil_types.stmt
val pretty : Format.formatter -> Cil2cfg.node_type Pervasives.ref -> unit
end