From b565bb91802982ee67b4b580b68d6fb4c7f93335 Mon Sep 17 00:00:00 2001
From: Arnaud Spiwack
Date: Mon, 24 Feb 2014 16:57:04 +0100
Subject: IStream: a concat_map primitive.

---
 tactics/tacticMatching.ml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'tactics')

diff --git a/tactics/tacticMatching.ml b/tactics/tacticMatching.ml
index 1c67d4b01c..8ac193fa58 100644
--- a/tactics/tacticMatching.ml
+++ b/tactics/tacticMatching.ml
@@ -167,7 +167,7 @@ module PatternMatching (E:StaticEnvironment) = struct
       coherent. *)
   let (>>=) (type a) (type b) (x:a m) (f:a -> b m) : b m =
     let open IStream in
-    concat (map begin fun { subst=substx; context=contextx; terms=termsx; lhs=lhsx } ->
+    concat_map begin fun { subst=substx; context=contextx; terms=termsx; lhs=lhsx } ->
       map_filter begin fun { subst=substf; context=contextf; terms=termsf; lhs=lhsf } ->
         try 
           Some { 
@@ -178,7 +178,7 @@ module PatternMatching (E:StaticEnvironment) = struct
           }
         with Not_coherent_metas -> None
       end (f lhsx)
-    end x)
+    end x
 
   (** A variant of [(>>=)] when the first argument returns [unit]. *)
   let (<*>) (type a) (x:unit m) (y:a m) : a m =
-- 
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