From 00a9266096b35d6e5cbb717d17e00c674d08b23c Mon Sep 17 00:00:00 2001
From: joaquintides <joaquin@tid.es>
Date: Thu, 27 Oct 2022 18:41:21 +0200
Subject: [PATCH] reverted

---
 include/boost/unordered/detail/foa.hpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/include/boost/unordered/detail/foa.hpp b/include/boost/unordered/detail/foa.hpp
index 8c5c2fa2..5f731494 100644
--- a/include/boost/unordered/detail/foa.hpp
+++ b/include/boost/unordered/detail/foa.hpp
@@ -1558,8 +1558,7 @@ private:
         auto p=arrays.elements+pos*N;
         prefetch_elements(p);
         do{
-          //auto n=unchecked_countr_zero(mask);
-          auto n=(unsigned int)__builtin_ctz((unsigned int)mask);
+          auto n=unchecked_countr_zero(mask);
           if(BOOST_LIKELY(bool(pred()(x,key_from(p[n]))))){
             return {pg,n,p+n};
           }