From b5ddee87c31c7e6c291e12fa23e845909cd01cef Mon Sep 17 00:00:00 2001
From: ITHelpDec <34002836+ITHelpDec@users.noreply.github.com>
Date: Wed, 7 Jun 2023 23:26:54 +0100
Subject: [PATCH] `acquire` -> `acq_rel`

- consider upgrading to std::memory_order_acq_rel to ensure all accesses to ptr_ happen before its deletion
---
 listings/listing_7.18.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/listings/listing_7.18.cpp b/listings/listing_7.18.cpp
index 5e8f41d..9044f69 100644
--- a/listings/listing_7.18.cpp
+++ b/listings/listing_7.18.cpp
@@ -36,7 +36,7 @@ private:    struct node;
             }
             while(!count.compare_exchange_strong(
                       old_counter,new_counter,
-                      std::memory_order_acquire,std::memory_order_relaxed));
+                      std::memory_order_acq_rel,std::memory_order_relaxed));
             if(!new_counter.internal_count &&
                !new_counter.external_counters)
             {