From 8bfeea482838a0c4f678c7f666f4520f4f2e8dd9 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Thu, 5 May 2022 10:48:24 -0600
Subject: [PATCH] [subset] Compute set max using previous()

---
 src/hb-subset-plan.cc | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/hb-subset-plan.cc b/src/hb-subset-plan.cc
index b84478611..0a003d56f 100644
--- a/src/hb-subset-plan.cc
+++ b/src/hb-subset-plan.cc
@@ -442,10 +442,9 @@ _create_old_gid_to_new_gid_map (const hb_face_t *face,
     | hb_sink (reverse_glyph_map)
     ;
 
-    unsigned max_glyph =
-    + hb_iter (all_gids_to_retain)
-    | hb_reduce (hb_max, 0u)
-    ;
+    hb_codepoint_t max_glyph = HB_SET_VALUE_INVALID;
+    hb_set_previous (all_gids_to_retain, &max_glyph);
+
     *num_glyphs = max_glyph + 1;
   }