From 91e5530ace053b1b9ea3a1fe64ce638ae6493314 Mon Sep 17 00:00:00 2001
From: Ziv Scully <ziv@mit.edu>
Date: Mon, 9 Nov 2015 13:38:04 -0500
Subject: Add new files missing from previous commit.

---
 src/list_key_fn.sml | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 src/list_key_fn.sml

(limited to 'src/list_key_fn.sml')

diff --git a/src/list_key_fn.sml b/src/list_key_fn.sml
new file mode 100644
index 00000000..ec2bd26f
--- /dev/null
+++ b/src/list_key_fn.sml
@@ -0,0 +1,14 @@
+functor ListKeyFn(K : ORD_KEY)
+        : ORD_KEY where type ord_key = K.ord_key list = struct
+
+type ord_key = K.ord_key list
+
+val rec compare =
+ fn ([], []) => EQUAL
+  | ([], _) => LESS
+  | (_, []) => GREATER
+  | (x::xs, y::ys) => case K.compare (x, y) of
+                              EQUAL => compare (xs, ys)
+                            | ord => ord
+
+end
-- 
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