From b9b814a38ee768ec8a902544722b81c4b9866834 Mon Sep 17 00:00:00 2001
From: Russell Yanofsky <russ@yanofsky.org>
Date: Thu, 1 Jun 2017 11:48:29 -0400
Subject: [PATCH] Avoid CWalletTx copies in GetAddressBalances and
 GetAddressGroupings

---
 src/wallet/wallet.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 997515a04b..62d46ba72b 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -3261,9 +3261,9 @@ std::map<CTxDestination, CAmount> CWallet::GetAddressBalances()
 
     {
         LOCK(cs_wallet);
-        BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
+        for (const auto& walletEntry : mapWallet)
         {
-            CWalletTx *pcoin = &walletEntry.second;
+            const CWalletTx *pcoin = &walletEntry.second;
 
             if (!pcoin->IsTrusted())
                 continue;
@@ -3301,9 +3301,9 @@ std::set< std::set<CTxDestination> > CWallet::GetAddressGroupings()
     std::set< std::set<CTxDestination> > groupings;
     std::set<CTxDestination> grouping;
 
-    BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
+    for (const auto& walletEntry : mapWallet)
     {
-        CWalletTx *pcoin = &walletEntry.second;
+        const CWalletTx *pcoin = &walletEntry.second;
 
         if (pcoin->tx->vin.size() > 0)
         {