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-rw-r--r--clib/hMap.mli1
1 files changed, 1 insertions, 0 deletions
diff --git a/clib/hMap.mli b/clib/hMap.mli
index b26d0e04e3..ab2a6bbf15 100644
--- a/clib/hMap.mli
+++ b/clib/hMap.mli
@@ -13,6 +13,7 @@ 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]. *)