Use nullptr instead of zero (0) as the null pointer constant

3 files changed, 11 insertions, 11 deletions

diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 75f836a29d..094357639b 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -1644,10 +1644,10 @@ UniValue listtransactions(const JSONRPCRequest& request)
     for (CWallet::TxItems::const_reverse_iterator it = txOrdered.rbegin(); it != txOrdered.rend(); ++it)
     {
         CWalletTx *const pwtx = (*it).second.first;
-        if (pwtx != 0)
+        if (pwtx != nullptr)
             ListTransactions(pwallet, *pwtx, strAccount, 0, true, ret, filter);
         CAccountingEntry *const pacentry = (*it).second.second;
-        if (pacentry != 0)
+        if (pacentry != nullptr)
             AcentryToJSON(*pacentry, strAccount, ret);
 
         if ((int)ret.size() >= (nCount+nFrom)) break;
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 489952e309..f8c6f9e87b 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -739,13 +739,13 @@ DBErrors CWallet::ReorderTransactions()
     for (std::map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
     {
         CWalletTx* wtx = &((*it).second);
-        txByTime.insert(std::make_pair(wtx->nTimeReceived, TxPair(wtx, (CAccountingEntry*)0)));
+        txByTime.insert(std::make_pair(wtx->nTimeReceived, TxPair(wtx, nullptr)));
     }
     std::list<CAccountingEntry> acentries;
     walletdb.ListAccountCreditDebit("", acentries);
     for (CAccountingEntry& entry : acentries)
     {
-        txByTime.insert(std::make_pair(entry.nTime, TxPair((CWalletTx*)0, &entry)));
+        txByTime.insert(std::make_pair(entry.nTime, TxPair(nullptr, &entry)));
     }
 
     nOrderPosNext = 0;
@@ -754,7 +754,7 @@ DBErrors CWallet::ReorderTransactions()
     {
         CWalletTx *const pwtx = (*it).second.first;
         CAccountingEntry *const pacentry = (*it).second.second;
-        int64_t& nOrderPos = (pwtx != 0) ? pwtx->nOrderPos : pacentry->nOrderPos;
+        int64_t& nOrderPos = (pwtx != nullptr) ? pwtx->nOrderPos : pacentry->nOrderPos;
 
         if (nOrderPos == -1)
         {
@@ -939,7 +939,7 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFlushOnClose)
     {
         wtx.nTimeReceived = GetAdjustedTime();
         wtx.nOrderPos = IncOrderPosNext(&walletdb);
-        wtxOrdered.insert(std::make_pair(wtx.nOrderPos, TxPair(&wtx, (CAccountingEntry*)0)));
+        wtxOrdered.insert(std::make_pair(wtx.nOrderPos, TxPair(&wtx, nullptr)));
         wtx.nTimeSmart = ComputeTimeSmart(wtx);
         AddToSpends(hash);
     }
@@ -1004,7 +1004,7 @@ bool CWallet::LoadToWallet(const CWalletTx& wtxIn)
     mapWallet[hash] = wtxIn;
     CWalletTx& wtx = mapWallet[hash];
     wtx.BindWallet(this);
-    wtxOrdered.insert(std::make_pair(wtx.nOrderPos, TxPair(&wtx, (CAccountingEntry*)0)));
+    wtxOrdered.insert(std::make_pair(wtx.nOrderPos, TxPair(&wtx, nullptr)));
     AddToSpends(hash);
     for (const CTxIn& txin : wtx.tx->vin) {
         if (mapWallet.count(txin.prevout.hash)) {
@@ -1794,7 +1794,7 @@ CAmount CWalletTx::GetImmatureCredit(bool fUseCache) const
 
 CAmount CWalletTx::GetAvailableCredit(bool fUseCache) const
 {
-    if (pwallet == 0)
+    if (pwallet == nullptr)
         return 0;
 
     // Must wait until coinbase is safely deep enough in the chain before valuing it
@@ -1838,7 +1838,7 @@ CAmount CWalletTx::GetImmatureWatchOnlyCredit(const bool& fUseCache) const
 
 CAmount CWalletTx::GetAvailableWatchOnlyCredit(const bool& fUseCache) const
 {
-    if (pwallet == 0)
+    if (pwallet == nullptr)
         return 0;
 
     // Must wait until coinbase is safely deep enough in the chain before valuing it
@@ -3026,7 +3026,7 @@ bool CWallet::AddAccountingEntry(const CAccountingEntry& acentry, CWalletDB *pwa
 
     laccentries.push_back(acentry);
     CAccountingEntry & entry = laccentries.back();
-    wtxOrdered.insert(std::make_pair(entry.nOrderPos, TxPair((CWalletTx*)0, &entry)));
+    wtxOrdered.insert(std::make_pair(entry.nOrderPos, TxPair(nullptr, &entry)));
 
     return true;
 }
diff --git a/src/wallet/walletdb.cpp b/src/wallet/walletdb.cpp
index 72c22d2259..cd26d87fdb 100644
--- a/src/wallet/walletdb.cpp
+++ b/src/wallet/walletdb.cpp
@@ -621,7 +621,7 @@ DBErrors CWalletDB::LoadWallet(CWallet* pwallet)
     pwallet->laccentries.clear();
     ListAccountCreditDebit("*", pwallet->laccentries);
     for (CAccountingEntry& entry : pwallet->laccentries) {
-        pwallet->wtxOrdered.insert(make_pair(entry.nOrderPos, CWallet::TxPair((CWalletTx*)0, &entry)));
+        pwallet->wtxOrdered.insert(make_pair(entry.nOrderPos, CWallet::TxPair(nullptr, &entry)));
     }
 
     return result;