From 6916b77863cd5ce492a274eb85f196f2152fbb96 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Tue, 16 Apr 2019 18:33:51 -0400
Subject: [PATCH] One more auto return type

---
 src/hb-iter.hh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/hb-iter.hh b/src/hb-iter.hh
index 38d477027..a4ffbd6f0 100644
--- a/src/hb-iter.hh
+++ b/src/hb-iter.hh
@@ -258,8 +258,8 @@ struct hb_is_iterator_of { enum {
 
 template <typename Lhs, typename Rhs,
 	  hb_enable_if (hb_is_iterator (Lhs))>
-static inline decltype (hb_declval (Rhs) (hb_declval (Lhs)))
-operator | (Lhs lhs, const Rhs &rhs) { return rhs (lhs); }
+static inline auto
+operator | (Lhs lhs, const Rhs &rhs) HB_AUTO_RETURN (rhs (lhs))
 
 /* hb_map(), hb_filter(), hb_reduce() */