From a28b5d03b5c86d2ffc352ef35463718aa4a00a9f Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Mon, 1 Nov 2021 21:43:44 -0600
Subject: [PATCH] [vector] Add swap() friend to hb_sorted_vector_t

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

diff --git a/src/hb-vector.hh b/src/hb-vector.hh
index 286b79f73..43e21d498 100644
--- a/src/hb-vector.hh
+++ b/src/hb-vector.hh
@@ -316,6 +316,8 @@ struct hb_sorted_vector_t : hb_vector_t<Type>
   hb_sorted_vector_t () : hb_vector_t<Type> () {}
   hb_sorted_vector_t (std::initializer_list<Type> lst) : hb_vector_t<Type> (lst) {}
   hb_sorted_vector_t (hb_sorted_vector_t& o) : hb_vector_t<Type> (o) {}
+  friend void swap (hb_sorted_vector_t& a, hb_sorted_vector_t& b)
+  { hb_swap ((hb_vector_t<Type>&) (a), (hb_vector_t<Type>&) (b)); }
 
   hb_sorted_array_t<      Type> as_array ()       { return hb_sorted_array (this->arrayZ, this->length); }
   hb_sorted_array_t<const Type> as_array () const { return hb_sorted_array (this->arrayZ, this->length); }