1 files changed, 2 insertions, 0 deletions
diff --git a/hash.h b/hash.h
index 76955ac2..6b393b77 100644
--- a/hash.h
+++ b/hash.h
@@ -56,6 +56,8 @@ val hash_alist(val hash);
 val hash_uni(val hash1, val hash2, val join_func);
 val hash_diff(val hash1, val hash2);
 val hash_isec(val hash1, val hash2, val join_func);
+val hash_subset(val hash1, val hash2);
+val hash_proper_subset(val hash1, val hash2);
 val hash_update(val hash, val fun);
 val hash_update_1(val hash, val key, val fun, val init);