X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Focaml%2Fparamodulation%2Fdiscrimination_tree.ml;fp=helm%2Focaml%2Fparamodulation%2Fdiscrimination_tree.ml;h=dc87e750398a9ea647c48683ad4f559e5bac8097;hb=e701ae61ea78b5bcbc8919ccb51f4f2ada8c5f23;hp=254a423327a9de6c48b2c241610e9387c766b064;hpb=f3db9a0fa7715783e93e4f927d5c73bff28090fa;p=helm.git

diff --git a/helm/ocaml/paramodulation/discrimination_tree.ml b/helm/ocaml/paramodulation/discrimination_tree.ml
index 254a42332..dc87e7503 100644
--- a/helm/ocaml/paramodulation/discrimination_tree.ml
+++ b/helm/ocaml/paramodulation/discrimination_tree.ml
@@ -41,59 +41,6 @@ module PosEqSet = Set.Make(OrderedPosEquality);;
 
 module DiscriminationTree = Trie.Make(PSMap);;
 
-
-(*
-module DiscriminationTree = struct
-  type key = path_string
-  type t = Node of PosEqSet.t option * (t PSMap.t)
-
-  let empty = Node (None, PSMap.empty)
-
-  let rec find l t =
-    match (l, t) with
-    | [], Node (None, _) -> raise Not_found
-    | [], Node (Some v, _) -> v
-    | x::r, Node (_, m) -> find r (PSMap.find x m)
-        
-  let rec mem l t =
-    match (l, t) with
-    | [], Node (None, _) -> false
-    | [], Node (Some _, _) -> true
-    | x::r, Node (_, m) -> try mem r (PSMap.find x m) with Not_found -> false
-
-  let add l v t =
-    let rec ins = function
-      | [], Node (_, m) -> Node (Some v, m)
-      | x::r, Node (v, m) ->
-	  let t' = try PSMap.find x m with Not_found -> empty in
-	  let t'' = ins (r, t') in
-	  Node (v, PSMap.add x t'' m)
-    in
-    ins (l, t)
-
-  let rec remove l t =
-    match (l, t) with
-    | [], Node (_, m) -> Node (None, m)
-    | x::r, Node (v, m) ->
-	try
-	  let t' = remove r (PSMap.find x m) in
-          let m' = if t' = empty then PSMap.remove x m else PSMap.add x t' m in
-	  Node (v, m')
-	with Not_found ->
-	  t
-
-  let rec fold f t acc =
-    let rec traverse revp t acc = match t with
-      | Node (None, m) -> 
-	  PSMap.fold (fun x -> traverse (x::revp)) m acc
-      | Node (Some v, m) -> 
-	  f (List.rev revp) v (PSMap.fold (fun x -> traverse (x::revp)) m acc)
-    in
-    traverse [] t acc
-
-end
-*)
-
   
 let string_of_discrimination_tree tree =
   let rec to_string level = function