From 4e5747adfd7b5c83cac2c4bb242d85fd3cb6fdd0 Mon Sep 17 00:00:00 2001
From: Pierre-Marie Pédrot
Date: Wed, 5 Mar 2014 20:14:51 +0100
Subject: Fixing previous commit. Forgot to include some code.

---
 lib/hMap.mli | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'lib/hMap.mli')

diff --git a/lib/hMap.mli b/lib/hMap.mli
index 4519ba316a..45b722fda0 100644
--- a/lib/hMap.mli
+++ b/lib/hMap.mli
@@ -10,7 +10,10 @@ module type HashedType =
 sig
   type t
   val compare : t -> t -> int
+  (** Total ordering *)
   val hash : t -> int
+  (** Hashing function compatible with [compare], i.e. [compare x y = 0] implies
+      [hash x = hash y]. *)
 end
 
 (** Hash maps are maps that take advantage of having a hash on keys. This is
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