From bff52b099317455db3f41a0f2d0c7ec963ac9373 Mon Sep 17 00:00:00 2001
From: Nobuhiro Ban <ban@nautilus-technologies.com>
Date: Tue, 6 Jun 2023 17:58:18 +0900
Subject: [PATCH] fixup

---
 src/limestone/leveldb_wrapper.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/limestone/leveldb_wrapper.h b/src/limestone/leveldb_wrapper.h
index 4765d27..bccff48 100644
--- a/src/limestone/leveldb_wrapper.h
+++ b/src/limestone/leveldb_wrapper.h
@@ -70,7 +70,7 @@ class leveldb_wrapper {
         return status.ok();
     }
 
-    void each(std::function<void(std::string_view, std::string_view)>& fun) {
+    void each(const std::function<void(std::string_view, std::string_view)>& fun) {
         leveldb::Iterator* it = lvldb_->NewIterator(leveldb::ReadOptions());  // NOLINT (typical usage of leveldb)
         for (it->SeekToFirst(); it->Valid(); it->Next()) {
             leveldb::Slice key = it->key();