From 23931fef8a21e5bff5c1faa7d9d9dd6787197d35 Mon Sep 17 00:00:00 2001
From: letouzey <letouzey@85f007b7-540e-0410-9357-904b9bb8a0f7>
Date: Thu, 28 Nov 2002 02:22:43 +0000
Subject: A usage cosmetique

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@3320 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 lib/util.ml  | 2 ++
 lib/util.mli | 1 +
 2 files changed, 3 insertions(+)

diff --git a/lib/util.ml b/lib/util.ml
index 1d020b516..eca6e9885 100644
--- a/lib/util.ml
+++ b/lib/util.ml
@@ -513,6 +513,8 @@ let matrix_transpose mat =
 
 (* Functions *)
 
+let identity x = x
+
 let compose f g x = f (g x)
 
 let iterate f = 
diff --git a/lib/util.mli b/lib/util.mli
index 50367f69a..03062e868 100644
--- a/lib/util.mli
+++ b/lib/util.mli
@@ -151,6 +151,7 @@ val matrix_transpose : 'a list list -> 'a list list
 
 (*s Functions. *)
 
+val identity : 'a -> 'a
 val compose : ('a -> 'b) -> ('c -> 'a) -> 'c -> 'b
 val iterate : ('a -> 'a) -> int -> 'a -> 'a
 val repeat : int -> ('a -> unit) -> 'a -> unit
-- 
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