From 9947ce62626c05bd186ae8a4864aa382f673ec1a Mon Sep 17 00:00:00 2001
From: Sebastian Falbesoner <sebastian.falbesoner@gmail.com>
Date: Thu, 7 Oct 2021 01:47:14 +0200
Subject: [PATCH] refactor: use const reference for parents in
 `CTxMemPool::UpdateAncestorsOf`

---
 src/txmempool.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index 5a93f30c8a3..3d0f99cd447 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -276,7 +276,7 @@ bool CTxMemPool::CalculateMemPoolAncestors(const CTxMemPoolEntry &entry,
 
 void CTxMemPool::UpdateAncestorsOf(bool add, txiter it, setEntries &setAncestors)
 {
-    CTxMemPoolEntry::Parents parents = it->GetMemPoolParents();
+    const CTxMemPoolEntry::Parents& parents = it->GetMemPoolParentsConst();
     // add or remove this tx as a child of each parent
     for (const CTxMemPoolEntry& parent : parents) {
         UpdateChild(mapTx.iterator_to(parent), it, add);