From be1619398f5b4802ebe765abf1c0c5aa27fd11bc Mon Sep 17 00:00:00 2001
From: letouzey <letouzey@85f007b7-540e-0410-9357-904b9bb8a0f7>
Date: Thu, 24 Feb 2011 15:48:27 +0000
Subject: Mod_subst: improving sharing of subst_mps

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13854 85f007b7-540e-0410-9357-904b9bb8a0f7
---
 kernel/mod_subst.mli | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'kernel/mod_subst.mli')

diff --git a/kernel/mod_subst.mli b/kernel/mod_subst.mli
index 91139985b..f9b76e6ee 100644
--- a/kernel/mod_subst.mli
+++ b/kernel/mod_subst.mli
@@ -68,6 +68,8 @@ val mind_in_delta : mutual_inductive -> delta_resolver -> bool
 
 val empty_subst : substitution
 
+val is_empty_subst : substitution -> bool
+
 (** add_* add [arg2/arg1]\{arg3\} to the substitution with no 
    sequential composition  *)
 val add_mbid :
-- 
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