From 1e7b9c2863bdf69496bb65a4aaa2b579173e79c5 Mon Sep 17 00:00:00 2001
From: Otto <otto.moerbeek@open-xchange.com>
Date: Tue, 7 Dec 2021 08:51:26 +0100
Subject: [PATCH] Move pool to private and return const iterator

---
 pdns/lua-recursor4.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pdns/lua-recursor4.cc b/pdns/lua-recursor4.cc
index e009963016..4b04fe7a5b 100644
--- a/pdns/lua-recursor4.cc
+++ b/pdns/lua-recursor4.cc
@@ -1043,12 +1043,13 @@ public:
   {
   }
   RecursorLua4::PostResolveFFIHandle& handle;
-  std::unordered_set<std::string> pool;
   auto insert(std::string&& str)
   {
-    auto [it, inserted] = pool.insert(std::move(str));
+    const auto it = pool.insert(std::move(str)).first;
     return it;
   }
+private:
+  std::unordered_set<std::string> pool;
 };
 
 bool RecursorLua4::postresolve_ffi(RecursorLua4::PostResolveFFIHandle& h) const
-- 
2.47.2