From a331e913dc99cba1e5994b06cffa2c5cc007f7ff Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Sat, 26 Nov 2022 14:59:37 -0700
Subject: [PATCH] [bit-page] Hand-code equality

Faster than memcmp() because of alignment.
---
 src/hb-bit-page.hh | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/hb-bit-page.hh b/src/hb-bit-page.hh
index 87d0e6143..3f2eb2cb1 100644
--- a/src/hb-bit-page.hh
+++ b/src/hb-bit-page.hh
@@ -208,7 +208,10 @@ struct hb_bit_page_t
 
   bool is_equal (const hb_bit_page_t &other) const
   {
-    return 0 == hb_memcmp (&v, &other.v, sizeof (v));
+    for (unsigned i = 0; i < len (); i++)
+      if (v[i] != other.v[i])
+	return false;
+    return true;
   }
   bool is_subset (const hb_bit_page_t &larger_page) const
   {