From: acondolu <andrea.condoluci@unibo.it>
Date: Mon, 24 Jul 2017 13:38:50 +0000 (+0200)
Subject: Fixed bug in Scott.mk_match when no branches (Fixes problem 1 in solved)
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=0c2f070e30e80810236099f3a9dcfb6edca0f783;p=fireball-separation.git

Fixed bug in Scott.mk_match when no branches (Fixes problem 1 in solved)
---

diff --git a/ocaml/problems/solved b/ocaml/problems/solved
new file mode 100644
index 0000000..6ea3dd2
--- /dev/null
+++ b/ocaml/problems/solved
@@ -0,0 +1,3 @@
+$! Scott mk_math with empty bs
+D b (_. _. BOT)
+C b
diff --git a/ocaml/pure.ml b/ocaml/pure.ml
index 95dae15..51d1feb 100644
--- a/ocaml/pure.ml
+++ b/ocaml/pure.ml
@@ -118,7 +118,7 @@ let mk_match t bs =
  let bs = List.sort (fun (n1,_) (n2,_) -> compare n1 n2) bs in
  let rec aux m t =
   function
-     [] -> dummy
+     [] -> A (L dummy, t)
    | (n,p)::tl as l ->
       if n = m then
        A (A (t, L (lift (m+1) p)), L (aux (m+1) (V 0) tl))