[iter] Fix reduce type deduction

576065b4 · Behdad Esfahbod · 4552864c · 576065b4
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src/hb-iter.hh src/hb-iter.hh +1 -1

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--- a/src/hb-iter.hh
+++ b/src/hb-iter.hh
@@ -480,7 +480,7 @@ struct hb_reduce_t
  template <typename Iter,
 	    hb_requires (hb_is_iterator (Iter)),
-	    typename AccuT = decltype (hb_declval (Redu) (hb_declval (InitT), hb_declval (typename Iter::item_t)))>
+	    typename AccuT = hb_remove_reference<decltype (hb_declval (Redu) (hb_declval (InitT), hb_declval (typename Iter::item_t)))>>
  AccuT
  operator () (Iter it)
  {