mise en place module Refiner

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@107 85f007b7-540e-0410-9357-904b9bb8a0f7

2 files changed, 12 insertions, 0 deletions

diff --git a/lib/util.ml b/lib/util.ml
index be6f67dc16..440acd6ba2 100644
--- a/lib/util.ml
+++ b/lib/util.ml
@@ -125,6 +125,8 @@ let list_for_all_i p =
 
 let list_except x l = List.filter (fun y -> not (x = y)) l
 
+let list_for_all2eq f l1 l2 = try List.for_all2 f l1 l2 with Failure _ -> false
+
 (* Arrays *)
 
 let array_exists f v = 
@@ -262,6 +264,13 @@ let option_app f = function
   | None -> None
   | Some x -> Some (f x)
 
+let map_succeed f = 
+  let rec map_f = function 
+    | [] -> []
+    |  h::t -> try (let x = f h in x :: map_f t) with Failure _ -> map_f t
+  in 
+  map_f 
+
 (* Pretty-printing *)
   
 let pr_spc () = [< 'sPC >];;
diff --git a/lib/util.mli b/lib/util.mli
index 484b2d61e7..ef56afeb27 100644
--- a/lib/util.mli
+++ b/lib/util.mli
@@ -40,6 +40,7 @@ val list_index : 'a -> 'a list -> int
 val list_fold_left_i :  (int -> 'a -> 'b -> 'a) -> int -> 'a -> 'b list -> 'a
 val list_for_all_i : (int -> 'a -> bool) -> int -> 'a list -> bool
 val list_except : 'a -> 'a list -> 'a list
+val list_for_all2eq : ('a -> 'b -> bool) -> 'a list -> 'b list -> bool
 
 (*s Arrays. *)
 
@@ -78,6 +79,8 @@ module Intmap : Map.S with type key = int
 val out_some : 'a option -> 'a
 val option_app : ('a -> 'b) -> 'a option -> 'b option
 
+val map_succeed : ('a -> 'b) -> 'a list -> 'b list
+
 (*s Pretty-printing. *)
 
 val pr_spc : unit -> std_ppcmds