From 2afd1c5c9a63af345385943bedce8d1fb9224403 Mon Sep 17 00:00:00 2001
From: joaquintides <joaquin@tid.es>
Date: Tue, 25 Oct 2022 14:45:38 +0200
Subject: [PATCH] copied Neon group15::is_sentinel from foa_unordered_rc.hpp
 (possible performance impact)

---
 include/boost/unordered/detail/foa.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/boost/unordered/detail/foa.hpp b/include/boost/unordered/detail/foa.hpp
index f2867074..a120e7da 100644
--- a/include/boost/unordered/detail/foa.hpp
+++ b/include/boost/unordered/detail/foa.hpp
@@ -305,7 +305,7 @@ struct group15
   inline bool is_sentinel(std::size_t pos)const
   {
     BOOST_ASSERT(pos<N);
-    return at(pos)==sentinel_;
+    return pos==N-1&&at(N-1)==sentinel_;
   }
 
   inline void reset(std::size_t pos)