From c2d365117bc779b77e43ad150e9db7189b76b3a8 Mon Sep 17 00:00:00 2001
From: puech
Date: Fri, 29 Jul 2011 14:24:58 +0000
Subject: Tactics: generic equality on constr replaced by eq_constr

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@14321 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 lib/util.ml  | 7 +++++++
 lib/util.mli | 1 +
 2 files changed, 8 insertions(+)

(limited to 'lib')

diff --git a/lib/util.ml b/lib/util.ml
index 76d9c67280..67ff2a5019 100644
--- a/lib/util.ml
+++ b/lib/util.ml
@@ -399,6 +399,13 @@ let rec list_compare cmp l1 l2 =
 	   | 0 -> list_compare cmp l1 l2
 	   | c -> c)
 
+let rec list_equal cmp l1 l2 =
+  match l1, l2 with
+    | [], [] -> true
+    | x1 :: l1, x2 :: l2 ->
+      cmp x1 x2 && list_equal cmp l1 l2
+    | _ -> false
+
 let list_intersect l1 l2 =
   List.filter (fun x -> List.mem x l2) l1
 
diff --git a/lib/util.mli b/lib/util.mli
index baa1164897..458eb1d05d 100644
--- a/lib/util.mli
+++ b/lib/util.mli
@@ -116,6 +116,7 @@ val ascii_of_ident : string -> string
 (** {6 Lists. } *)
 
 val list_compare : ('a -> 'a -> int) -> 'a list -> 'a list -> int
+val list_equal : ('a -> 'a -> bool) -> 'a list -> 'a list -> bool
 val list_add_set : 'a -> 'a list -> 'a list
 val list_eq_set : 'a list -> 'a list -> bool
 val list_intersect : 'a list -> 'a list -> 'a list
-- 
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