Merge #9643: [refactor] Remove using namespace <xxx> from wallet/ & util*

a57845c Refactor: Remove using namespace <xxx> from util* (Karl-Johan Alm)
8a52281 Refactor: Remove using namespace <xxx> from wallet/ (Karl-Johan Alm)

Tree-SHA512: cd06b569fee0ce25db753ade5ee694b582733a8883bfd62a27613020266d2a902af079ef23b58a5412f7af4afd7681e689af3c7780e5ea00c77b16d144d72db5

10 files changed, 349 insertions, 368 deletions

diff --git a/src/util.cpp b/src/util.cpp
index 78c353dfe5..30c530cb41 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -97,15 +97,15 @@ namespace boost {
 
 } // namespace boost
 
-using namespace std;
+
 
 const char * const BITCOIN_CONF_FILENAME = "bitcoin.conf";
 const char * const BITCOIN_PID_FILENAME = "bitcoind.pid";
 
 CCriticalSection cs_args;
-map<string, string> mapArgs;
-static map<string, vector<string> > _mapMultiArgs;
-const map<string, vector<string> >& mapMultiArgs = _mapMultiArgs;
+std::map<std::string, std::string> mapArgs;
+static std::map<std::string, std::vector<std::string> > _mapMultiArgs;
+const std::map<std::string, std::vector<std::string> >& mapMultiArgs = _mapMultiArgs;
 bool fDebug = false;
 bool fPrintToConsole = false;
 bool fPrintToDebugLog = true;
@@ -191,7 +191,7 @@ static boost::once_flag debugPrintInitFlag = BOOST_ONCE_INIT;
  */
 static FILE* fileout = NULL;
 static boost::mutex* mutexDebugLog = NULL;
-static list<string> *vMsgsBeforeOpenLog;
+static std::list<std::string>* vMsgsBeforeOpenLog;
 
 static int FileWriteStr(const std::string &str, FILE *fp)
 {
@@ -202,7 +202,7 @@ static void DebugPrintInit()
 {
     assert(mutexDebugLog == NULL);
     mutexDebugLog = new boost::mutex();
-    vMsgsBeforeOpenLog = new list<string>;
+    vMsgsBeforeOpenLog = new std::list<std::string>;
 }
 
 void OpenDebugLog()
@@ -238,22 +238,22 @@ bool LogAcceptCategory(const char* category)
         // This helps prevent issues debugging global destructors,
         // where mapMultiArgs might be deleted before another
         // global destructor calls LogPrint()
-        static boost::thread_specific_ptr<set<string> > ptrCategory;
+        static boost::thread_specific_ptr<std::set<std::string> > ptrCategory;
         if (ptrCategory.get() == NULL)
         {
             if (mapMultiArgs.count("-debug")) {
-                const vector<string>& categories = mapMultiArgs.at("-debug");
-                ptrCategory.reset(new set<string>(categories.begin(), categories.end()));
+                const std::vector<std::string>& categories = mapMultiArgs.at("-debug");
+                ptrCategory.reset(new std::set<std::string>(categories.begin(), categories.end()));
                 // thread_specific_ptr automatically deletes the set when the thread ends.
             } else
-                ptrCategory.reset(new set<string>());
+                ptrCategory.reset(new std::set<std::string>());
         }
-        const set<string>& setCategories = *ptrCategory.get();
+        const std::set<std::string>& setCategories = *ptrCategory.get();
 
         // if not debugging everything and not debugging specific category, LogPrint does nothing.
-        if (setCategories.count(string("")) == 0 &&
-            setCategories.count(string("1")) == 0 &&
-            setCategories.count(string(category)) == 0)
+        if (setCategories.count(std::string("")) == 0 &&
+            setCategories.count(std::string("1")) == 0 &&
+            setCategories.count(std::string(category)) == 0)
             return false;
     }
     return true;
@@ -266,7 +266,7 @@ bool LogAcceptCategory(const char* category)
  */
 static std::string LogTimestampStr(const std::string &str, std::atomic_bool *fStartedNewLine)
 {
-    string strStamped;
+    std::string strStamped;
 
     if (!fLogTimestamps)
         return str;
@@ -293,7 +293,7 @@ int LogPrintStr(const std::string &str)
     int ret = 0; // Returns total number of characters written
     static std::atomic_bool fStartedNewLine(true);
 
-    string strTimestamped = LogTimestampStr(str, &fStartedNewLine);
+    std::string strTimestamped = LogTimestampStr(str, &fStartedNewLine);
 
     if (fPrintToConsole)
     {
@@ -561,14 +561,14 @@ void ReadConfigFile(const std::string& confPath)
 
     {
         LOCK(cs_args);
-        set<string> setOptions;
+        std::set<std::string> setOptions;
         setOptions.insert("*");
 
         for (boost::program_options::detail::config_file_iterator it(streamConfig, setOptions), end; it != end; ++it)
         {
             // Don't overwrite existing settings so command line settings override bitcoin.conf
-            string strKey = string("-") + it->string_key;
-            string strValue = it->value[0];
+            std::string strKey = std::string("-") + it->string_key;
+            std::string strValue = it->value[0];
             InterpretNegativeSetting(strKey, strValue);
             if (mapArgs.count(strKey) == 0)
                 mapArgs[strKey] = strValue;
diff --git a/src/utilmoneystr.cpp b/src/utilmoneystr.cpp
index bebe56130d..6e6e33184e 100644
--- a/src/utilmoneystr.cpp
+++ b/src/utilmoneystr.cpp
@@ -9,8 +9,6 @@
 #include "tinyformat.h"
 #include "utilstrencodings.h"
 
-using namespace std;
-
 std::string FormatMoney(const CAmount& n)
 {
     // Note: not using straight sprintf here because we do NOT want
@@ -18,7 +16,7 @@ std::string FormatMoney(const CAmount& n)
     int64_t n_abs = (n > 0 ? n : -n);
     int64_t quotient = n_abs/COIN;
     int64_t remainder = n_abs%COIN;
-    string str = strprintf("%d.%08d", quotient, remainder);
+    std::string str = strprintf("%d.%08d", quotient, remainder);
 
     // Right-trim excess zeros before the decimal point:
     int nTrim = 0;
@@ -33,14 +31,14 @@ std::string FormatMoney(const CAmount& n)
 }
 
 
-bool ParseMoney(const string& str, CAmount& nRet)
+bool ParseMoney(const std::string& str, CAmount& nRet)
 {
     return ParseMoney(str.c_str(), nRet);
 }
 
 bool ParseMoney(const char* pszIn, CAmount& nRet)
 {
-    string strWhole;
+    std::string strWhole;
     int64_t nUnits = 0;
     const char* p = pszIn;
     while (isspace(*p))
diff --git a/src/utilstrencodings.cpp b/src/utilstrencodings.cpp
index 29ae57940f..74bf66fbf6 100644
--- a/src/utilstrencodings.cpp
+++ b/src/utilstrencodings.cpp
@@ -12,20 +12,18 @@
 #include <errno.h>
 #include <limits>
 
-using namespace std;
+static const std::string CHARS_ALPHA_NUM = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
 
-static const string CHARS_ALPHA_NUM = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
-
-static const string SAFE_CHARS[] =
+static const std::string SAFE_CHARS[] =
 {
     CHARS_ALPHA_NUM + " .,;-_/:?@()", // SAFE_CHARS_DEFAULT
     CHARS_ALPHA_NUM + " .,;-_?@", // SAFE_CHARS_UA_COMMENT
     CHARS_ALPHA_NUM + ".-_", // SAFE_CHARS_FILENAME
 };
 
-string SanitizeString(const string& str, int rule)
+std::string SanitizeString(const std::string& str, int rule)
 {
-    string strResult;
+    std::string strResult;
     for (std::string::size_type i = 0; i < str.size(); i++)
     {
         if (SAFE_CHARS[rule].find(str[i]) != std::string::npos)
@@ -57,7 +55,7 @@ signed char HexDigit(char c)
     return p_util_hexdigit[(unsigned char)c];
 }
 
-bool IsHex(const string& str)
+bool IsHex(const std::string& str)
 {
     for(std::string::const_iterator it(str.begin()); it != str.end(); ++it)
     {
@@ -67,10 +65,10 @@ bool IsHex(const string& str)
     return (str.size() > 0) && (str.size()%2 == 0);
 }
 
-vector<unsigned char> ParseHex(const char* psz)
+std::vector<unsigned char> ParseHex(const char* psz)
 {
     // convert hex dump to vector
-    vector<unsigned char> vch;
+    std::vector<unsigned char> vch;
     while (true)
     {
         while (isspace(*psz))
@@ -88,16 +86,16 @@ vector<unsigned char> ParseHex(const char* psz)
     return vch;
 }
 
-vector<unsigned char> ParseHex(const string& str)
+std::vector<unsigned char> ParseHex(const std::string& str)
 {
     return ParseHex(str.c_str());
 }
 
-string EncodeBase64(const unsigned char* pch, size_t len)
+std::string EncodeBase64(const unsigned char* pch, size_t len)
 {
     static const char *pbase64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
 
-    string strRet="";
+    std::string strRet = "";
     strRet.reserve((len+2)/3*4);
 
     int mode=0, left=0;
@@ -139,12 +137,12 @@ string EncodeBase64(const unsigned char* pch, size_t len)
     return strRet;
 }
 
-string EncodeBase64(const string& str)
+std::string EncodeBase64(const std::string& str)
 {
     return EncodeBase64((const unsigned char*)str.c_str(), str.size());
 }
 
-vector<unsigned char> DecodeBase64(const char* p, bool* pfInvalid)
+std::vector<unsigned char> DecodeBase64(const char* p, bool* pfInvalid)
 {
     static const int decode64_table[256] =
     {
@@ -166,7 +164,7 @@ vector<unsigned char> DecodeBase64(const char* p, bool* pfInvalid)
     if (pfInvalid)
         *pfInvalid = false;
 
-    vector<unsigned char> vchRet;
+    std::vector<unsigned char> vchRet;
     vchRet.reserve(strlen(p)*3/4);
 
     int mode = 0;
@@ -227,17 +225,17 @@ vector<unsigned char> DecodeBase64(const char* p, bool* pfInvalid)
     return vchRet;
 }
 
-string DecodeBase64(const string& str)
+std::string DecodeBase64(const std::string& str)
 {
-    vector<unsigned char> vchRet = DecodeBase64(str.c_str());
-    return (vchRet.size() == 0) ? string() : string((const char*)&vchRet[0], vchRet.size());
+    std::vector<unsigned char> vchRet = DecodeBase64(str.c_str());
+    return (vchRet.size() == 0) ? std::string() : std::string((const char*)&vchRet[0], vchRet.size());
 }
 
-string EncodeBase32(const unsigned char* pch, size_t len)
+std::string EncodeBase32(const unsigned char* pch, size_t len)
 {
     static const char *pbase32 = "abcdefghijklmnopqrstuvwxyz234567";
 
-    string strRet="";
+    std::string strRet="";
     strRet.reserve((len+4)/5*8);
 
     int mode=0, left=0;
@@ -292,12 +290,12 @@ string EncodeBase32(const unsigned char* pch, size_t len)
     return strRet;
 }
 
-string EncodeBase32(const string& str)
+std::string EncodeBase32(const std::string& str)
 {
     return EncodeBase32((const unsigned char*)str.c_str(), str.size());
 }
 
-vector<unsigned char> DecodeBase32(const char* p, bool* pfInvalid)
+std::vector<unsigned char> DecodeBase32(const char* p, bool* pfInvalid)
 {
     static const int decode32_table[256] =
     {
@@ -319,7 +317,7 @@ vector<unsigned char> DecodeBase32(const char* p, bool* pfInvalid)
     if (pfInvalid)
         *pfInvalid = false;
 
-    vector<unsigned char> vchRet;
+    std::vector<unsigned char> vchRet;
     vchRet.reserve((strlen(p))*5/8);
 
     int mode = 0;
@@ -414,10 +412,10 @@ vector<unsigned char> DecodeBase32(const char* p, bool* pfInvalid)
     return vchRet;
 }
 
-string DecodeBase32(const string& str)
+std::string DecodeBase32(const std::string& str)
 {
-    vector<unsigned char> vchRet = DecodeBase32(str.c_str());
-    return (vchRet.size() == 0) ? string() : string((const char*)&vchRet[0], vchRet.size());
+    std::vector<unsigned char> vchRet = DecodeBase32(str.c_str());
+    return (vchRet.size() == 0) ? std::string() : std::string((const char*)&vchRet[0], vchRet.size());
 }
 
 static bool ParsePrechecks(const std::string& str)
diff --git a/src/utiltime.cpp b/src/utiltime.cpp
index c7b3e4f168..a9936a645a 100644
--- a/src/utiltime.cpp
+++ b/src/utiltime.cpp
@@ -12,8 +12,6 @@
 #include <boost/date_time/posix_time/posix_time.hpp>
 #include <boost/thread.hpp>
 
-using namespace std;
-
 static int64_t nMockTime = 0; //!< For unit testing
 
 int64_t GetTime()
diff --git a/src/wallet/db.cpp b/src/wallet/db.cpp
index 74d87f9d15..80c42bd91b 100644
--- a/src/wallet/db.cpp
+++ b/src/wallet/db.cpp
@@ -22,9 +22,6 @@
 #include <boost/thread.hpp>
 #include <boost/version.hpp>
 
-using namespace std;
-
-
 //
 // CDB
 //
@@ -117,7 +114,7 @@ bool CDBEnv::Open(const boost::filesystem::path& pathIn)
 void CDBEnv::MakeMock()
 {
     if (fDbEnvInit)
-        throw runtime_error("CDBEnv::MakeMock: Already initialized");
+        throw std::runtime_error("CDBEnv::MakeMock: Already initialized");
 
     boost::this_thread::interruption_point();
 
@@ -140,7 +137,7 @@ void CDBEnv::MakeMock()
                              DB_PRIVATE,
                          S_IRUSR | S_IWUSR);
     if (ret > 0)
-        throw runtime_error(strprintf("CDBEnv::MakeMock: Error %d opening database environment.", ret));
+        throw std::runtime_error(strprintf("CDBEnv::MakeMock: Error %d opening database environment.", ret));
 
     fDbEnvInit = true;
     fMockDb = true;
@@ -214,7 +211,7 @@ bool CDB::Recover(const std::string& filename, void *callbackDataIn, bool (*reco
         {
             CDataStream ssKey(row.first, SER_DISK, CLIENT_VERSION);
             CDataStream ssValue(row.second, SER_DISK, CLIENT_VERSION);
-            string strType, strErr;
+            std::string strType, strErr;
             if (!(*recoverKVcallback)(callbackDataIn, ssKey, ssValue))
                 continue;
         }
@@ -301,7 +298,7 @@ bool CDBEnv::Salvage(const std::string& strFile, bool fAggressive, std::vector<C
     if (fAggressive)
         flags |= DB_AGGRESSIVE;
 
-    stringstream strDump;
+    std::stringstream strDump;
 
     Db db(dbenv, 0);
     int result = db.verify(strFile.c_str(), NULL, &strDump, flags);
@@ -325,7 +322,7 @@ bool CDBEnv::Salvage(const std::string& strFile, bool fAggressive, std::vector<C
     //  ... repeated
     // DATA=END
 
-    string strLine;
+    std::string strLine;
     while (!strDump.eof() && strLine != HEADER_END)
         getline(strDump, strLine); // Skip past header
 
@@ -378,7 +375,7 @@ CDB::CDB(const std::string& strFilename, const char* pszMode, bool fFlushOnClose
     {
         LOCK(bitdb.cs_db);
         if (!bitdb.Open(GetDataDir()))
-            throw runtime_error("CDB: Failed to open database environment.");
+            throw std::runtime_error("CDB: Failed to open database environment.");
 
         strFile = strFilename;
         ++bitdb.mapFileUseCount[strFile];
@@ -391,7 +388,7 @@ CDB::CDB(const std::string& strFilename, const char* pszMode, bool fFlushOnClose
                 DbMpoolFile* mpf = pdb->get_mpf();
                 ret = mpf->set_flags(DB_MPOOL_NOFILE, 1);
                 if (ret != 0)
-                    throw runtime_error(strprintf("CDB: Failed to configure for no temp file backing for database %s", strFile));
+                    throw std::runtime_error(strprintf("CDB: Failed to configure for no temp file backing for database %s", strFile));
             }
 
             ret = pdb->open(NULL,                               // Txn pointer
@@ -406,10 +403,10 @@ CDB::CDB(const std::string& strFilename, const char* pszMode, bool fFlushOnClose
                 pdb = NULL;
                 --bitdb.mapFileUseCount[strFile];
                 strFile = "";
-                throw runtime_error(strprintf("CDB: Error %d, can't open database %s", ret, strFilename));
+                throw std::runtime_error(strprintf("CDB: Error %d, can't open database %s", ret, strFilename));
             }
 
-            if (fCreate && !Exists(string("version"))) {
+            if (fCreate && !Exists(std::string("version"))) {
                 bool fTmp = fReadOnly;
                 fReadOnly = false;
                 WriteVersion(CLIENT_VERSION);
@@ -452,7 +449,7 @@ void CDB::Close()
     }
 }
 
-void CDBEnv::CloseDb(const string& strFile)
+void CDBEnv::CloseDb(const std::string& strFile)
 {
     {
         LOCK(cs_db);
@@ -466,7 +463,7 @@ void CDBEnv::CloseDb(const string& strFile)
     }
 }
 
-bool CDBEnv::RemoveDb(const string& strFile)
+bool CDBEnv::RemoveDb(const std::string& strFile)
 {
     this->CloseDb(strFile);
 
@@ -475,7 +472,7 @@ bool CDBEnv::RemoveDb(const string& strFile)
     return (rc == 0);
 }
 
-bool CDB::Rewrite(const string& strFile, const char* pszSkip)
+bool CDB::Rewrite(const std::string& strFile, const char* pszSkip)
 {
     while (true) {
         {
@@ -488,7 +485,7 @@ bool CDB::Rewrite(const string& strFile, const char* pszSkip)
 
                 bool fSuccess = true;
                 LogPrintf("CDB::Rewrite: Rewriting %s...\n", strFile);
-                string strFileRes = strFile + ".rewrite";
+                std::string strFileRes = strFile + ".rewrite";
                 { // surround usage of db with extra {}
                     CDB db(strFile.c_str(), "r");
                     Db* pdbCopy = new Db(bitdb.dbenv, 0);
@@ -568,9 +565,9 @@ void CDBEnv::Flush(bool fShutdown)
         return;
     {
         LOCK(cs_db);
-        map<string, int>::iterator mi = mapFileUseCount.begin();
+        std::map<std::string, int>::iterator mi = mapFileUseCount.begin();
         while (mi != mapFileUseCount.end()) {
-            string strFile = (*mi).first;
+            std::string strFile = (*mi).first;
             int nRefCount = (*mi).second;
             LogPrint("db", "CDBEnv::Flush: Flushing %s (refcount = %d)...\n", strFile, nRefCount);
             if (nRefCount == 0) {
@@ -607,7 +604,7 @@ bool CDB::PeriodicFlush(std::string strFile)
     {
         // Don't do this if any databases are in use
         int nRefCount = 0;
-        map<string, int>::iterator mi = bitdb.mapFileUseCount.begin();
+        std::map<std::string, int>::iterator mi = bitdb.mapFileUseCount.begin();
         while (mi != bitdb.mapFileUseCount.end())
         {
             nRefCount += (*mi).second;
@@ -617,7 +614,7 @@ bool CDB::PeriodicFlush(std::string strFile)
         if (nRefCount == 0)
         {
             boost::this_thread::interruption_point();
-            map<string, int>::iterator mi = bitdb.mapFileUseCount.find(strFile);
+            std::map<std::string, int>::iterator mi = bitdb.mapFileUseCount.find(strFile);
             if (mi != bitdb.mapFileUseCount.end())
             {
                 LogPrint("db", "Flushing %s\n", strFile);
diff --git a/src/wallet/rpcdump.cpp b/src/wallet/rpcdump.cpp
index e02c6513e4..5006dbc477 100644
--- a/src/wallet/rpcdump.cpp
+++ b/src/wallet/rpcdump.cpp
@@ -29,8 +29,6 @@
 #include <boost/assign/list_of.hpp>
 #include <boost/foreach.hpp>
 
-using namespace std;
-
 std::string static EncodeDumpTime(int64_t nTime) {
     return DateTimeStrFormat("%Y-%m-%dT%H:%M:%SZ", nTime);
 }
@@ -82,7 +80,7 @@ UniValue importprivkey(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 3)
-        throw runtime_error(
+        throw std::runtime_error(
             "importprivkey \"bitcoinprivkey\" ( \"label\" ) ( rescan )\n"
             "\nAdds a private key (as returned by dumpprivkey) to your wallet.\n"
             "\nArguments:\n"
@@ -106,8 +104,8 @@ UniValue importprivkey(const JSONRPCRequest& request)
 
     EnsureWalletIsUnlocked(pwallet);
 
-    string strSecret = request.params[0].get_str();
-    string strLabel = "";
+    std::string strSecret = request.params[0].get_str();
+    std::string strLabel = "";
     if (request.params.size() > 1)
         strLabel = request.params[1].get_str();
 
@@ -156,8 +154,8 @@ UniValue importprivkey(const JSONRPCRequest& request)
     return NullUniValue;
 }
 
-void ImportAddress(CWallet*, const CBitcoinAddress& address, const string& strLabel);
-void ImportScript(CWallet * const pwallet, const CScript& script, const string& strLabel, bool isRedeemScript)
+void ImportAddress(CWallet*, const CBitcoinAddress& address, const std::string& strLabel);
+void ImportScript(CWallet* const pwallet, const CScript& script, const std::string& strLabel, bool isRedeemScript)
 {
     if (!isRedeemScript && ::IsMine(*pwallet, script) == ISMINE_SPENDABLE) {
         throw JSONRPCError(RPC_WALLET_ERROR, "The wallet already contains the private key for this address or script");
@@ -182,7 +180,7 @@ void ImportScript(CWallet * const pwallet, const CScript& script, const string&
     }
 }
 
-void ImportAddress(CWallet * const pwallet, const CBitcoinAddress& address, const string& strLabel)
+void ImportAddress(CWallet* const pwallet, const CBitcoinAddress& address, const std::string& strLabel)
 {
     CScript script = GetScriptForDestination(address.Get());
     ImportScript(pwallet, script, strLabel, false);
@@ -199,7 +197,7 @@ UniValue importaddress(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 4)
-        throw runtime_error(
+        throw std::runtime_error(
             "importaddress \"address\" ( \"label\" rescan p2sh )\n"
             "\nAdds a script (in hex) or address that can be watched as if it were in your wallet but cannot be used to spend.\n"
             "\nArguments:\n"
@@ -221,7 +219,7 @@ UniValue importaddress(const JSONRPCRequest& request)
         );
 
 
-    string strLabel = "";
+    std::string strLabel = "";
     if (request.params.size() > 1)
         strLabel = request.params[1].get_str();
 
@@ -269,7 +267,7 @@ UniValue importprunedfunds(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 2)
-        throw runtime_error(
+        throw std::runtime_error(
             "importprunedfunds\n"
             "\nImports funds without rescan. Corresponding address or script must previously be included in wallet. Aimed towards pruned wallets. The end-user is responsible to import additional transactions that subsequently spend the imported outputs or rescan after the point in the blockchain the transaction is included.\n"
             "\nArguments:\n"
@@ -288,8 +286,8 @@ UniValue importprunedfunds(const JSONRPCRequest& request)
     ssMB >> merkleBlock;
 
     //Search partial merkle tree in proof for our transaction and index in valid block
-    vector<uint256> vMatch;
-    vector<unsigned int> vIndex;
+    std::vector<uint256> vMatch;
+    std::vector<unsigned int> vIndex;
     unsigned int txnIndex = 0;
     if (merkleBlock.txn.ExtractMatches(vMatch, vIndex) == merkleBlock.header.hashMerkleRoot) {
 
@@ -298,7 +296,7 @@ UniValue importprunedfunds(const JSONRPCRequest& request)
         if (!mapBlockIndex.count(merkleBlock.header.GetHash()) || !chainActive.Contains(mapBlockIndex[merkleBlock.header.GetHash()]))
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Block not found in chain");
 
-        vector<uint256>::const_iterator it;
+        std::vector<uint256>::const_iterator it;
         if ((it = std::find(vMatch.begin(), vMatch.end(), hashTx))==vMatch.end()) {
             throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Transaction given doesn't exist in proof");
         }
@@ -330,7 +328,7 @@ UniValue removeprunedfunds(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "removeprunedfunds \"txid\"\n"
             "\nDeletes the specified transaction from the wallet. Meant for use with pruned wallets and as a companion to importprunedfunds. This will effect wallet balances.\n"
             "\nArguments:\n"
@@ -345,9 +343,9 @@ UniValue removeprunedfunds(const JSONRPCRequest& request)
 
     uint256 hash;
     hash.SetHex(request.params[0].get_str());
-    vector<uint256> vHash;
+    std::vector<uint256> vHash;
     vHash.push_back(hash);
-    vector<uint256> vHashOut;
+    std::vector<uint256> vHashOut;
 
     if (pwallet->ZapSelectTx(vHash, vHashOut) != DB_LOAD_OK) {
         throw JSONRPCError(RPC_INTERNAL_ERROR, "Could not properly delete the transaction.");
@@ -368,7 +366,7 @@ UniValue importpubkey(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 4)
-        throw runtime_error(
+        throw std::runtime_error(
             "importpubkey \"pubkey\" ( \"label\" rescan )\n"
             "\nAdds a public key (in hex) that can be watched as if it were in your wallet but cannot be used to spend.\n"
             "\nArguments:\n"
@@ -386,7 +384,7 @@ UniValue importpubkey(const JSONRPCRequest& request)
         );
 
 
-    string strLabel = "";
+    std::string strLabel = "";
     if (request.params.size() > 1)
         strLabel = request.params[1].get_str();
 
@@ -428,7 +426,7 @@ UniValue importwallet(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "importwallet \"filename\"\n"
             "\nImports keys from a wallet dump file (see dumpwallet).\n"
             "\nArguments:\n"
@@ -449,7 +447,7 @@ UniValue importwallet(const JSONRPCRequest& request)
 
     EnsureWalletIsUnlocked(pwallet);
 
-    ifstream file;
+    std::ifstream file;
     file.open(request.params[0].get_str().c_str(), std::ios::in | std::ios::ate);
     if (!file.is_open())
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot open wallet dump file");
@@ -536,7 +534,7 @@ UniValue dumpprivkey(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "dumpprivkey \"address\"\n"
             "\nReveals the private key corresponding to 'address'.\n"
             "Then the importprivkey can be used with this output\n"
@@ -554,7 +552,7 @@ UniValue dumpprivkey(const JSONRPCRequest& request)
 
     EnsureWalletIsUnlocked(pwallet);
 
-    string strAddress = request.params[0].get_str();
+    std::string strAddress = request.params[0].get_str();
     CBitcoinAddress address;
     if (!address.SetString(strAddress))
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Bitcoin address");
@@ -577,7 +575,7 @@ UniValue dumpwallet(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "dumpwallet \"filename\"\n"
             "\nDumps all wallet keys in a human-readable format.\n"
             "\nArguments:\n"
@@ -591,7 +589,7 @@ UniValue dumpwallet(const JSONRPCRequest& request)
 
     EnsureWalletIsUnlocked(pwallet);
 
-    ofstream file;
+    std::ofstream file;
     file.open(request.params[0].get_str().c_str());
     if (!file.is_open())
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Cannot open wallet dump file");
@@ -675,16 +673,16 @@ UniValue ProcessImport(CWallet * const pwallet, const UniValue& data, const int6
         }
 
         // Optional fields.
-        const string& strRedeemScript = data.exists("redeemscript") ? data["redeemscript"].get_str() : "";
+        const std::string& strRedeemScript = data.exists("redeemscript") ? data["redeemscript"].get_str() : "";
         const UniValue& pubKeys = data.exists("pubkeys") ? data["pubkeys"].get_array() : UniValue();
         const UniValue& keys = data.exists("keys") ? data["keys"].get_array() : UniValue();
         const bool& internal = data.exists("internal") ? data["internal"].get_bool() : false;
         const bool& watchOnly = data.exists("watchonly") ? data["watchonly"].get_bool() : false;
-        const string& label = data.exists("label") && !internal ? data["label"].get_str() : "";
+        const std::string& label = data.exists("label") && !internal ? data["label"].get_str() : "";
 
         bool isScript = scriptPubKey.getType() == UniValue::VSTR;
         bool isP2SH = strRedeemScript.length() > 0;
-        const string& output = isScript ? scriptPubKey.get_str() : scriptPubKey["address"].get_str();
+        const std::string& output = isScript ? scriptPubKey.get_str() : scriptPubKey["address"].get_str();
 
         // Parse the output.
         CScript script;
@@ -774,7 +772,7 @@ UniValue ProcessImport(CWallet * const pwallet, const UniValue& data, const int6
             // Import private keys.
             if (keys.size()) {
                 for (size_t i = 0; i < keys.size(); i++) {
-                    const string& privkey = keys[i].get_str();
+                    const std::string& privkey = keys[i].get_str();
 
                     CBitcoinSecret vchSecret;
                     bool fGood = vchSecret.SetString(privkey);
@@ -814,7 +812,7 @@ UniValue ProcessImport(CWallet * const pwallet, const UniValue& data, const int6
         } else {
             // Import public keys.
             if (pubKeys.size() && keys.size() == 0) {
-                const string& strPubKey = pubKeys[0].get_str();
+                const std::string& strPubKey = pubKeys[0].get_str();
 
                 if (!IsHex(strPubKey)) {
                     throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Pubkey must be a hex string");
@@ -882,7 +880,7 @@ UniValue ProcessImport(CWallet * const pwallet, const UniValue& data, const int6
 
             // Import private keys.
             if (keys.size()) {
-                const string& strPrivkey = keys[0].get_str();
+                const std::string& strPrivkey = keys[0].get_str();
 
                 // Checks.
                 CBitcoinSecret vchSecret;
@@ -1001,7 +999,7 @@ UniValue importmulti(const JSONRPCRequest& mainRequest)
 
     // clang-format off
     if (mainRequest.fHelp || mainRequest.params.size() < 1 || mainRequest.params.size() > 2)
-        throw runtime_error(
+        throw std::runtime_error(
             "importmulti \"requests\" \"options\"\n\n"
             "Import addresses/scripts (with private or public keys, redeem script (P2SH)), rescanning all addresses in one-shot-only (rescan can be disabled via options).\n\n"
             "Arguments:\n"
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 5ef93ac532..f38b639bec 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -27,8 +27,6 @@
 
 #include <univalue.h>
 
-using namespace std;
-
 CWallet *GetWalletForJSONRPCRequest(const JSONRPCRequest& request)
 {
     return pwalletMain;
@@ -94,13 +92,13 @@ void WalletTxToJSON(const CWalletTx& wtx, UniValue& entry)
     }
     entry.push_back(Pair("bip125-replaceable", rbfStatus));
 
-    BOOST_FOREACH(const PAIRTYPE(string,string)& item, wtx.mapValue)
+    BOOST_FOREACH(const PAIRTYPE(std::string, std::string)& item, wtx.mapValue)
         entry.push_back(Pair(item.first, item.second));
 }
 
-string AccountFromValue(const UniValue& value)
+std::string AccountFromValue(const UniValue& value)
 {
-    string strAccount = value.get_str();
+    std::string strAccount = value.get_str();
     if (strAccount == "*")
         throw JSONRPCError(RPC_WALLET_INVALID_ACCOUNT_NAME, "Invalid account name");
     return strAccount;
@@ -114,7 +112,7 @@ UniValue getnewaddress(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() > 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "getnewaddress ( \"account\" )\n"
             "\nReturns a new Bitcoin address for receiving payments.\n"
             "If 'account' is specified (DEPRECATED), it is added to the address book \n"
@@ -131,7 +129,7 @@ UniValue getnewaddress(const JSONRPCRequest& request)
     LOCK2(cs_main, pwallet->cs_wallet);
 
     // Parse the account first so we don't generate a key if there's an error
-    string strAccount;
+    std::string strAccount;
     if (request.params.size() > 0)
         strAccount = AccountFromValue(request.params[0]);
 
@@ -152,7 +150,7 @@ UniValue getnewaddress(const JSONRPCRequest& request)
 }
 
 
-CBitcoinAddress GetAccountAddress(CWallet * const pwallet, string strAccount, bool bForceNew=false)
+CBitcoinAddress GetAccountAddress(CWallet* const pwallet, std::string strAccount, bool bForceNew=false)
 {
     CPubKey pubKey;
     if (!pwallet->GetAccountPubkey(pubKey, strAccount, bForceNew)) {
@@ -170,7 +168,7 @@ UniValue getaccountaddress(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "getaccountaddress \"account\"\n"
             "\nDEPRECATED. Returns the current Bitcoin address for receiving payments to this account.\n"
             "\nArguments:\n"
@@ -187,7 +185,7 @@ UniValue getaccountaddress(const JSONRPCRequest& request)
     LOCK2(cs_main, pwallet->cs_wallet);
 
     // Parse the account first so we don't generate a key if there's an error
-    string strAccount = AccountFromValue(request.params[0]);
+    std::string strAccount = AccountFromValue(request.params[0]);
 
     UniValue ret(UniValue::VSTR);
 
@@ -204,7 +202,7 @@ UniValue getrawchangeaddress(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() > 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "getrawchangeaddress\n"
             "\nReturns a new Bitcoin address, for receiving change.\n"
             "This is for use with raw transactions, NOT normal use.\n"
@@ -242,7 +240,7 @@ UniValue setaccount(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
-        throw runtime_error(
+        throw std::runtime_error(
             "setaccount \"address\" \"account\"\n"
             "\nDEPRECATED. Sets the account associated with the given address.\n"
             "\nArguments:\n"
@@ -259,7 +257,7 @@ UniValue setaccount(const JSONRPCRequest& request)
     if (!address.IsValid())
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Bitcoin address");
 
-    string strAccount;
+    std::string strAccount;
     if (request.params.size() > 1)
         strAccount = AccountFromValue(request.params[1]);
 
@@ -267,7 +265,7 @@ UniValue setaccount(const JSONRPCRequest& request)
     if (IsMine(*pwallet, address.Get())) {
         // Detect when changing the account of an address that is the 'unused current key' of another account:
         if (pwallet->mapAddressBook.count(address.Get())) {
-            string strOldAccount = pwallet->mapAddressBook[address.Get()].name;
+            std::string strOldAccount = pwallet->mapAddressBook[address.Get()].name;
             if (address == GetAccountAddress(pwallet, strOldAccount)) {
                 GetAccountAddress(pwallet, strOldAccount, true);
             }
@@ -289,7 +287,7 @@ UniValue getaccount(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "getaccount \"address\"\n"
             "\nDEPRECATED. Returns the account associated with the given address.\n"
             "\nArguments:\n"
@@ -307,8 +305,8 @@ UniValue getaccount(const JSONRPCRequest& request)
     if (!address.IsValid())
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Bitcoin address");
 
-    string strAccount;
-    map<CTxDestination, CAddressBookData>::iterator mi = pwallet->mapAddressBook.find(address.Get());
+    std::string strAccount;
+    std::map<CTxDestination, CAddressBookData>::iterator mi = pwallet->mapAddressBook.find(address.Get());
     if (mi != pwallet->mapAddressBook.end() && !(*mi).second.name.empty()) {
         strAccount = (*mi).second.name;
     }
@@ -324,7 +322,7 @@ UniValue getaddressesbyaccount(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "getaddressesbyaccount \"account\"\n"
             "\nDEPRECATED. Returns the list of addresses for the given account.\n"
             "\nArguments:\n"
@@ -341,13 +339,13 @@ UniValue getaddressesbyaccount(const JSONRPCRequest& request)
 
     LOCK2(cs_main, pwallet->cs_wallet);
 
-    string strAccount = AccountFromValue(request.params[0]);
+    std::string strAccount = AccountFromValue(request.params[0]);
 
     // Find all addresses that have the given account
     UniValue ret(UniValue::VARR);
     for (const std::pair<CBitcoinAddress, CAddressBookData>& item : pwallet->mapAddressBook) {
         const CBitcoinAddress& address = item.first;
-        const string& strName = item.second.name;
+        const std::string& strName = item.second.name;
         if (strName == strAccount)
             ret.push_back(address.ToString());
     }
@@ -376,7 +374,7 @@ static void SendMoney(CWallet * const pwallet, const CTxDestination &address, CA
     CReserveKey reservekey(pwallet);
     CAmount nFeeRequired;
     std::string strError;
-    vector<CRecipient> vecSend;
+    std::vector<CRecipient> vecSend;
     int nChangePosRet = -1;
     CRecipient recipient = {scriptPubKey, nValue, fSubtractFeeFromAmount};
     vecSend.push_back(recipient);
@@ -400,7 +398,7 @@ UniValue sendtoaddress(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 2 || request.params.size() > 5)
-        throw runtime_error(
+        throw std::runtime_error(
             "sendtoaddress \"address\" amount ( \"comment\" \"comment_to\" subtractfeefromamount )\n"
             "\nSend an amount to a given address.\n"
             + HelpRequiringPassphrase(pwallet) +
@@ -460,7 +458,7 @@ UniValue listaddressgroupings(const JSONRPCRequest& request)
     }
 
     if (request.fHelp)
-        throw runtime_error(
+        throw std::runtime_error(
             "listaddressgroupings\n"
             "\nLists groups of addresses which have had their common ownership\n"
             "made public by common use as inputs or as the resulting change\n"
@@ -485,8 +483,8 @@ UniValue listaddressgroupings(const JSONRPCRequest& request)
     LOCK2(cs_main, pwallet->cs_wallet);
 
     UniValue jsonGroupings(UniValue::VARR);
-    map<CTxDestination, CAmount> balances = pwallet->GetAddressBalances();
-    for (set<CTxDestination> grouping : pwallet->GetAddressGroupings()) {
+    std::map<CTxDestination, CAmount> balances = pwallet->GetAddressBalances();
+    for (std::set<CTxDestination> grouping : pwallet->GetAddressGroupings()) {
         UniValue jsonGrouping(UniValue::VARR);
         BOOST_FOREACH(CTxDestination address, grouping)
         {
@@ -513,7 +511,7 @@ UniValue signmessage(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 2)
-        throw runtime_error(
+        throw std::runtime_error(
             "signmessage \"address\" \"message\"\n"
             "\nSign a message with the private key of an address"
             + HelpRequiringPassphrase(pwallet) + "\n"
@@ -537,8 +535,8 @@ UniValue signmessage(const JSONRPCRequest& request)
 
     EnsureWalletIsUnlocked(pwallet);
 
-    string strAddress = request.params[0].get_str();
-    string strMessage = request.params[1].get_str();
+    std::string strAddress = request.params[0].get_str();
+    std::string strMessage = request.params[1].get_str();
 
     CBitcoinAddress addr(strAddress);
     if (!addr.IsValid())
@@ -557,7 +555,7 @@ UniValue signmessage(const JSONRPCRequest& request)
     ss << strMessageMagic;
     ss << strMessage;
 
-    vector<unsigned char> vchSig;
+    std::vector<unsigned char> vchSig;
     if (!key.SignCompact(ss.GetHash(), vchSig))
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Sign failed");
 
@@ -572,7 +570,7 @@ UniValue getreceivedbyaddress(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
-        throw runtime_error(
+        throw std::runtime_error(
             "getreceivedbyaddress \"address\" ( minconf )\n"
             "\nReturns the total amount received by the given address in transactions with at least minconf confirmations.\n"
             "\nArguments:\n"
@@ -632,7 +630,7 @@ UniValue getreceivedbyaccount(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
-        throw runtime_error(
+        throw std::runtime_error(
             "getreceivedbyaccount \"account\" ( minconf )\n"
             "\nDEPRECATED. Returns the total amount received by addresses with <account> in transactions with at least [minconf] confirmations.\n"
             "\nArguments:\n"
@@ -659,8 +657,8 @@ UniValue getreceivedbyaccount(const JSONRPCRequest& request)
         nMinDepth = request.params[1].get_int();
 
     // Get the set of pub keys assigned to account
-    string strAccount = AccountFromValue(request.params[0]);
-    set<CTxDestination> setAddress = pwallet->GetAccountAddresses(strAccount);
+    std::string strAccount = AccountFromValue(request.params[0]);
+    std::set<CTxDestination> setAddress = pwallet->GetAccountAddresses(strAccount);
 
     // Tally
     CAmount nAmount = 0;
@@ -691,7 +689,7 @@ UniValue getbalance(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() > 3)
-        throw runtime_error(
+        throw std::runtime_error(
             "getbalance ( \"account\" minconf include_watchonly )\n"
             "\nIf account is not specified, returns the server's total available balance.\n"
             "If account is specified (DEPRECATED), returns the balance in the account.\n"
@@ -750,9 +748,9 @@ UniValue getbalance(const JSONRPCRequest& request)
                 continue;
 
             CAmount allFee;
-            string strSentAccount;
-            list<COutputEntry> listReceived;
-            list<COutputEntry> listSent;
+            std::string strSentAccount;
+            std::list<COutputEntry> listReceived;
+            std::list<COutputEntry> listSent;
             wtx.GetAmounts(listReceived, listSent, allFee, strSentAccount, filter);
             if (wtx.GetDepthInMainChain() >= nMinDepth)
             {
@@ -766,7 +764,7 @@ UniValue getbalance(const JSONRPCRequest& request)
         return  ValueFromAmount(nBalance);
     }
 
-    string strAccount = AccountFromValue(request.params[0]);
+    std::string strAccount = AccountFromValue(request.params[0]);
 
     CAmount nBalance = pwallet->GetAccountBalance(strAccount, nMinDepth, filter);
 
@@ -781,7 +779,7 @@ UniValue getunconfirmedbalance(const JSONRPCRequest &request)
     }
 
     if (request.fHelp || request.params.size() > 0)
-        throw runtime_error(
+        throw std::runtime_error(
                 "getunconfirmedbalance\n"
                 "Returns the server's total unconfirmed balance\n");
 
@@ -799,7 +797,7 @@ UniValue movecmd(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 3 || request.params.size() > 5)
-        throw runtime_error(
+        throw std::runtime_error(
             "move \"fromaccount\" \"toaccount\" amount ( minconf \"comment\" )\n"
             "\nDEPRECATED. Move a specified amount from one account in your wallet to another.\n"
             "\nArguments:\n"
@@ -821,15 +819,15 @@ UniValue movecmd(const JSONRPCRequest& request)
 
     LOCK2(cs_main, pwallet->cs_wallet);
 
-    string strFrom = AccountFromValue(request.params[0]);
-    string strTo = AccountFromValue(request.params[1]);
+    std::string strFrom = AccountFromValue(request.params[0]);
+    std::string strTo = AccountFromValue(request.params[1]);
     CAmount nAmount = AmountFromValue(request.params[2]);
     if (nAmount <= 0)
         throw JSONRPCError(RPC_TYPE_ERROR, "Invalid amount for send");
     if (request.params.size() > 3)
         // unused parameter, used to be nMinDepth, keep type-checking it though
         (void)request.params[3].get_int();
-    string strComment;
+    std::string strComment;
     if (request.params.size() > 4)
         strComment = request.params[4].get_str();
 
@@ -849,7 +847,7 @@ UniValue sendfrom(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 3 || request.params.size() > 6)
-        throw runtime_error(
+        throw std::runtime_error(
             "sendfrom \"fromaccount\" \"toaddress\" amount ( minconf \"comment\" \"comment_to\" )\n"
             "\nDEPRECATED (use sendtoaddress). Sent an amount from an account to a bitcoin address."
             + HelpRequiringPassphrase(pwallet) + "\n"
@@ -879,7 +877,7 @@ UniValue sendfrom(const JSONRPCRequest& request)
 
     LOCK2(cs_main, pwallet->cs_wallet);
 
-    string strAccount = AccountFromValue(request.params[0]);
+    std::string strAccount = AccountFromValue(request.params[0]);
     CBitcoinAddress address(request.params[1].get_str());
     if (!address.IsValid())
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Bitcoin address");
@@ -918,7 +916,7 @@ UniValue sendmany(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 2 || request.params.size() > 5)
-        throw runtime_error(
+        throw std::runtime_error(
             "sendmany \"fromaccount\" {\"address\":amount,...} ( minconf \"comment\" [\"address\",...] )\n"
             "\nSend multiple times. Amounts are double-precision floating point numbers."
             + HelpRequiringPassphrase(pwallet) + "\n"
@@ -959,7 +957,7 @@ UniValue sendmany(const JSONRPCRequest& request)
         throw JSONRPCError(RPC_CLIENT_P2P_DISABLED, "Error: Peer-to-peer functionality missing or disabled");
     }
 
-    string strAccount = AccountFromValue(request.params[0]);
+    std::string strAccount = AccountFromValue(request.params[0]);
     UniValue sendTo = request.params[1].get_obj();
     int nMinDepth = 1;
     if (request.params.size() > 2)
@@ -974,19 +972,19 @@ UniValue sendmany(const JSONRPCRequest& request)
     if (request.params.size() > 4)
         subtractFeeFromAmount = request.params[4].get_array();
 
-    set<CBitcoinAddress> setAddress;
-    vector<CRecipient> vecSend;
+    std::set<CBitcoinAddress> setAddress;
+    std::vector<CRecipient> vecSend;
 
     CAmount totalAmount = 0;
-    vector<string> keys = sendTo.getKeys();
-    BOOST_FOREACH(const string& name_, keys)
+    std::vector<std::string> keys = sendTo.getKeys();
+    BOOST_FOREACH(const std::string& name_, keys)
     {
         CBitcoinAddress address(name_);
         if (!address.IsValid())
-            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, string("Invalid Bitcoin address: ")+name_);
+            throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, std::string("Invalid Bitcoin address: ")+name_);
 
         if (setAddress.count(address))
-            throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, duplicated address: ")+name_);
+            throw JSONRPCError(RPC_INVALID_PARAMETER, std::string("Invalid parameter, duplicated address: ")+name_);
         setAddress.insert(address);
 
         CScript scriptPubKey = GetScriptForDestination(address.Get());
@@ -1017,7 +1015,7 @@ UniValue sendmany(const JSONRPCRequest& request)
     CReserveKey keyChange(pwallet);
     CAmount nFeeRequired = 0;
     int nChangePosRet = -1;
-    string strFailReason;
+    std::string strFailReason;
     bool fCreated = pwallet->CreateTransaction(vecSend, wtx, keyChange, nFeeRequired, nChangePosRet, strFailReason);
     if (!fCreated)
         throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, strFailReason);
@@ -1042,7 +1040,7 @@ UniValue addmultisigaddress(const JSONRPCRequest& request)
 
     if (request.fHelp || request.params.size() < 2 || request.params.size() > 3)
     {
-        string msg = "addmultisigaddress nrequired [\"key\",...] ( \"account\" )\n"
+        std::string msg = "addmultisigaddress nrequired [\"key\",...] ( \"account\" )\n"
             "\nAdd a nrequired-to-sign multisignature address to the wallet.\n"
             "Each key is a Bitcoin address or hex-encoded public key.\n"
             "If 'account' is specified (DEPRECATED), assign address to that account.\n"
@@ -1065,12 +1063,12 @@ UniValue addmultisigaddress(const JSONRPCRequest& request)
             "\nAs json rpc call\n"
             + HelpExampleRpc("addmultisigaddress", "2, \"[\\\"16sSauSf5pF2UkUwvKGq4qjNRzBZYqgEL5\\\",\\\"171sgjn4YtPu27adkKGrdDwzRTxnRkBfKV\\\"]\"")
         ;
-        throw runtime_error(msg);
+        throw std::runtime_error(msg);
     }
 
     LOCK2(cs_main, pwallet->cs_wallet);
 
-    string strAccount;
+    std::string strAccount;
     if (request.params.size() > 2)
         strAccount = AccountFromValue(request.params[2]);
 
@@ -1140,7 +1138,7 @@ UniValue addwitnessaddress(const JSONRPCRequest& request)
 
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 1)
     {
-        string msg = "addwitnessaddress \"address\"\n"
+        std::string msg = "addwitnessaddress \"address\"\n"
             "\nAdd a witness address for a script (with pubkey or redeemscript known).\n"
             "It returns the witness script.\n"
 
@@ -1151,7 +1149,7 @@ UniValue addwitnessaddress(const JSONRPCRequest& request)
             "\"witnessaddress\",  (string) The value of the new address (P2SH of witness script).\n"
             "}\n"
         ;
-        throw runtime_error(msg);
+        throw std::runtime_error(msg);
     }
 
     {
@@ -1181,7 +1179,7 @@ struct tallyitem
 {
     CAmount nAmount;
     int nConf;
-    vector<uint256> txids;
+    std::vector<uint256> txids;
     bool fIsWatchonly;
     tallyitem()
     {
@@ -1209,7 +1207,7 @@ UniValue ListReceived(CWallet * const pwallet, const UniValue& params, bool fByA
             filter = filter | ISMINE_WATCH_ONLY;
 
     // Tally
-    map<CBitcoinAddress, tallyitem> mapTally;
+    std::map<CBitcoinAddress, tallyitem> mapTally;
     for (const std::pair<uint256, CWalletTx>& pairWtx : pwallet->mapWallet) {
         const CWalletTx& wtx = pairWtx.second;
 
@@ -1232,7 +1230,7 @@ UniValue ListReceived(CWallet * const pwallet, const UniValue& params, bool fByA
 
             tallyitem& item = mapTally[address];
             item.nAmount += txout.nValue;
-            item.nConf = min(item.nConf, nDepth);
+            item.nConf = std::min(item.nConf, nDepth);
             item.txids.push_back(wtx.GetHash());
             if (mine & ISMINE_WATCH_ONLY)
                 item.fIsWatchonly = true;
@@ -1241,11 +1239,11 @@ UniValue ListReceived(CWallet * const pwallet, const UniValue& params, bool fByA
 
     // Reply
     UniValue ret(UniValue::VARR);
-    map<string, tallyitem> mapAccountTally;
+    std::map<std::string, tallyitem> mapAccountTally;
     for (const std::pair<CBitcoinAddress, CAddressBookData>& item : pwallet->mapAddressBook) {
         const CBitcoinAddress& address = item.first;
-        const string& strAccount = item.second.name;
-        map<CBitcoinAddress, tallyitem>::iterator it = mapTally.find(address);
+        const std::string& strAccount = item.second.name;
+        std::map<CBitcoinAddress, tallyitem>::iterator it = mapTally.find(address);
         if (it == mapTally.end() && !fIncludeEmpty)
             continue;
 
@@ -1263,7 +1261,7 @@ UniValue ListReceived(CWallet * const pwallet, const UniValue& params, bool fByA
         {
             tallyitem& _item = mapAccountTally[strAccount];
             _item.nAmount += nAmount;
-            _item.nConf = min(_item.nConf, nConf);
+            _item.nConf = std::min(_item.nConf, nConf);
             _item.fIsWatchonly = fIsWatchonly;
         }
         else
@@ -1292,7 +1290,7 @@ UniValue ListReceived(CWallet * const pwallet, const UniValue& params, bool fByA
 
     if (fByAccounts)
     {
-        for (map<string, tallyitem>::iterator it = mapAccountTally.begin(); it != mapAccountTally.end(); ++it)
+        for (std::map<std::string, tallyitem>::iterator it = mapAccountTally.begin(); it != mapAccountTally.end(); ++it)
         {
             CAmount nAmount = (*it).second.nAmount;
             int nConf = (*it).second.nConf;
@@ -1317,7 +1315,7 @@ UniValue listreceivedbyaddress(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() > 3)
-        throw runtime_error(
+        throw std::runtime_error(
             "listreceivedbyaddress ( minconf include_empty include_watchonly)\n"
             "\nList balances by receiving address.\n"
             "\nArguments:\n"
@@ -1361,7 +1359,7 @@ UniValue listreceivedbyaccount(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() > 3)
-        throw runtime_error(
+        throw std::runtime_error(
             "listreceivedbyaccount ( minconf include_empty include_watchonly)\n"
             "\nDEPRECATED. List balances by account.\n"
             "\nArguments:\n"
@@ -1399,16 +1397,16 @@ static void MaybePushAddress(UniValue & entry, const CTxDestination &dest)
         entry.push_back(Pair("address", addr.ToString()));
 }
 
-void ListTransactions(CWallet * const pwallet, const CWalletTx& wtx, const string& strAccount, int nMinDepth, bool fLong, UniValue& ret, const isminefilter& filter)
+void ListTransactions(CWallet* const pwallet, const CWalletTx& wtx, const std::string& strAccount, int nMinDepth, bool fLong, UniValue& ret, const isminefilter& filter)
 {
     CAmount nFee;
-    string strSentAccount;
-    list<COutputEntry> listReceived;
-    list<COutputEntry> listSent;
+    std::string strSentAccount;
+    std::list<COutputEntry> listReceived;
+    std::list<COutputEntry> listSent;
 
     wtx.GetAmounts(listReceived, listSent, nFee, strSentAccount, filter);
 
-    bool fAllAccounts = (strAccount == string("*"));
+    bool fAllAccounts = (strAccount == std::string("*"));
     bool involvesWatchonly = wtx.IsFromMe(ISMINE_WATCH_ONLY);
 
     // Sent
@@ -1441,7 +1439,7 @@ void ListTransactions(CWallet * const pwallet, const CWalletTx& wtx, const strin
     {
         BOOST_FOREACH(const COutputEntry& r, listReceived)
         {
-            string account;
+            std::string account;
             if (pwallet->mapAddressBook.count(r.destination)) {
                 account = pwallet->mapAddressBook[r.destination].name;
             }
@@ -1479,9 +1477,9 @@ void ListTransactions(CWallet * const pwallet, const CWalletTx& wtx, const strin
     }
 }
 
-void AcentryToJSON(const CAccountingEntry& acentry, const string& strAccount, UniValue& ret)
+void AcentryToJSON(const CAccountingEntry& acentry, const std::string& strAccount, UniValue& ret)
 {
-    bool fAllAccounts = (strAccount == string("*"));
+    bool fAllAccounts = (strAccount == std::string("*"));
 
     if (fAllAccounts || acentry.strAccount == strAccount)
     {
@@ -1504,7 +1502,7 @@ UniValue listtransactions(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() > 4)
-        throw runtime_error(
+        throw std::runtime_error(
             "listtransactions ( \"account\" count skip include_watchonly)\n"
             "\nReturns up to 'count' most recent transactions skipping the first 'from' transactions for account 'account'.\n"
             "\nArguments:\n"
@@ -1565,7 +1563,7 @@ UniValue listtransactions(const JSONRPCRequest& request)
 
     LOCK2(cs_main, pwallet->cs_wallet);
 
-    string strAccount = "*";
+    std::string strAccount = "*";
     if (request.params.size() > 0)
         strAccount = request.params[0].get_str();
     int nCount = 10;
@@ -1607,11 +1605,11 @@ UniValue listtransactions(const JSONRPCRequest& request)
     if ((nFrom + nCount) > (int)ret.size())
         nCount = ret.size() - nFrom;
 
-    vector<UniValue> arrTmp = ret.getValues();
+    std::vector<UniValue> arrTmp = ret.getValues();
 
-    vector<UniValue>::iterator first = arrTmp.begin();
+    std::vector<UniValue>::iterator first = arrTmp.begin();
     std::advance(first, nFrom);
-    vector<UniValue>::iterator last = arrTmp.begin();
+    std::vector<UniValue>::iterator last = arrTmp.begin();
     std::advance(last, nFrom+nCount);
 
     if (last != arrTmp.end()) arrTmp.erase(last, arrTmp.end());
@@ -1634,7 +1632,7 @@ UniValue listaccounts(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() > 2)
-        throw runtime_error(
+        throw std::runtime_error(
             "listaccounts ( minconf include_watchonly)\n"
             "\nDEPRECATED. Returns Object that has account names as keys, account balances as values.\n"
             "\nArguments:\n"
@@ -1666,7 +1664,7 @@ UniValue listaccounts(const JSONRPCRequest& request)
         if(request.params[1].get_bool())
             includeWatchonly = includeWatchonly | ISMINE_WATCH_ONLY;
 
-    map<string, CAmount> mapAccountBalances;
+    std::map<std::string, CAmount> mapAccountBalances;
     for (const std::pair<CTxDestination, CAddressBookData>& entry : pwallet->mapAddressBook) {
         if (IsMine(*pwallet, entry.first) & includeWatchonly) {  // This address belongs to me
             mapAccountBalances[entry.second.name] = 0;
@@ -1676,9 +1674,9 @@ UniValue listaccounts(const JSONRPCRequest& request)
     for (const std::pair<uint256, CWalletTx>& pairWtx : pwallet->mapWallet) {
         const CWalletTx& wtx = pairWtx.second;
         CAmount nFee;
-        string strSentAccount;
-        list<COutputEntry> listReceived;
-        list<COutputEntry> listSent;
+        std::string strSentAccount;
+        std::list<COutputEntry> listReceived;
+        std::list<COutputEntry> listSent;
         int nDepth = wtx.GetDepthInMainChain();
         if (wtx.GetBlocksToMaturity() > 0 || nDepth < 0)
             continue;
@@ -1697,12 +1695,12 @@ UniValue listaccounts(const JSONRPCRequest& request)
         }
     }
 
-    const list<CAccountingEntry> & acentries = pwallet->laccentries;
+    const std::list<CAccountingEntry>& acentries = pwallet->laccentries;
     BOOST_FOREACH(const CAccountingEntry& entry, acentries)
         mapAccountBalances[entry.strAccount] += entry.nCreditDebit;
 
     UniValue ret(UniValue::VOBJ);
-    BOOST_FOREACH(const PAIRTYPE(string, CAmount)& accountBalance, mapAccountBalances) {
+    BOOST_FOREACH(const PAIRTYPE(std::string, CAmount)& accountBalance, mapAccountBalances) {
         ret.push_back(Pair(accountBalance.first, ValueFromAmount(accountBalance.second)));
     }
     return ret;
@@ -1716,7 +1714,7 @@ UniValue listsinceblock(const JSONRPCRequest& request)
     }
 
     if (request.fHelp)
-        throw runtime_error(
+        throw std::runtime_error(
             "listsinceblock ( \"blockhash\" target_confirmations include_watchonly)\n"
             "\nGet all transactions in blocks since block [blockhash], or all transactions if omitted\n"
             "\nArguments:\n"
@@ -1823,7 +1821,7 @@ UniValue gettransaction(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
-        throw runtime_error(
+        throw std::runtime_error(
             "gettransaction \"txid\" ( include_watchonly )\n"
             "\nGet detailed information about in-wallet transaction <txid>\n"
             "\nArguments:\n"
@@ -1898,7 +1896,7 @@ UniValue gettransaction(const JSONRPCRequest& request)
     ListTransactions(pwallet, wtx, "*", 0, false, details, filter);
     entry.push_back(Pair("details", details));
 
-    string strHex = EncodeHexTx(static_cast<CTransaction>(wtx), RPCSerializationFlags());
+    std::string strHex = EncodeHexTx(static_cast<CTransaction>(wtx), RPCSerializationFlags());
     entry.push_back(Pair("hex", strHex));
 
     return entry;
@@ -1912,7 +1910,7 @@ UniValue abandontransaction(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "abandontransaction \"txid\"\n"
             "\nMark in-wallet transaction <txid> as abandoned\n"
             "This will mark this transaction and all its in-wallet descendants as abandoned which will allow\n"
@@ -1951,7 +1949,7 @@ UniValue backupwallet(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "backupwallet \"destination\"\n"
             "\nSafely copies current wallet file to destination, which can be a directory or a path with filename.\n"
             "\nArguments:\n"
@@ -1963,7 +1961,7 @@ UniValue backupwallet(const JSONRPCRequest& request)
 
     LOCK2(cs_main, pwallet->cs_wallet);
 
-    string strDest = request.params[0].get_str();
+    std::string strDest = request.params[0].get_str();
     if (!pwallet->BackupWallet(strDest)) {
         throw JSONRPCError(RPC_WALLET_ERROR, "Error: Wallet backup failed!");
     }
@@ -1980,7 +1978,7 @@ UniValue keypoolrefill(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() > 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "keypoolrefill ( newsize )\n"
             "\nFills the keypool."
             + HelpRequiringPassphrase(pwallet) + "\n"
@@ -2027,7 +2025,7 @@ UniValue walletpassphrase(const JSONRPCRequest& request)
     }
 
     if (pwallet->IsCrypted() && (request.fHelp || request.params.size() != 2)) {
-        throw runtime_error(
+        throw std::runtime_error(
             "walletpassphrase \"passphrase\" timeout\n"
             "\nStores the wallet decryption key in memory for 'timeout' seconds.\n"
             "This is needed prior to performing transactions related to private keys such as sending bitcoins\n"
@@ -2069,7 +2067,7 @@ UniValue walletpassphrase(const JSONRPCRequest& request)
         }
     }
     else
-        throw runtime_error(
+        throw std::runtime_error(
             "walletpassphrase <passphrase> <timeout>\n"
             "Stores the wallet decryption key in memory for <timeout> seconds.");
 
@@ -2091,7 +2089,7 @@ UniValue walletpassphrasechange(const JSONRPCRequest& request)
     }
 
     if (pwallet->IsCrypted() && (request.fHelp || request.params.size() != 2)) {
-        throw runtime_error(
+        throw std::runtime_error(
             "walletpassphrasechange \"oldpassphrase\" \"newpassphrase\"\n"
             "\nChanges the wallet passphrase from 'oldpassphrase' to 'newpassphrase'.\n"
             "\nArguments:\n"
@@ -2122,7 +2120,7 @@ UniValue walletpassphrasechange(const JSONRPCRequest& request)
     strNewWalletPass = request.params[1].get_str().c_str();
 
     if (strOldWalletPass.length() < 1 || strNewWalletPass.length() < 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "walletpassphrasechange <oldpassphrase> <newpassphrase>\n"
             "Changes the wallet passphrase from <oldpassphrase> to <newpassphrase>.");
 
@@ -2142,7 +2140,7 @@ UniValue walletlock(const JSONRPCRequest& request)
     }
 
     if (pwallet->IsCrypted() && (request.fHelp || request.params.size() != 0)) {
-        throw runtime_error(
+        throw std::runtime_error(
             "walletlock\n"
             "\nRemoves the wallet encryption key from memory, locking the wallet.\n"
             "After calling this method, you will need to call walletpassphrase again\n"
@@ -2182,7 +2180,7 @@ UniValue encryptwallet(const JSONRPCRequest& request)
     }
 
     if (!pwallet->IsCrypted() && (request.fHelp || request.params.size() != 1)) {
-        throw runtime_error(
+        throw std::runtime_error(
             "encryptwallet \"passphrase\"\n"
             "\nEncrypts the wallet with 'passphrase'. This is for first time encryption.\n"
             "After this, any calls that interact with private keys such as sending or signing \n"
@@ -2221,7 +2219,7 @@ UniValue encryptwallet(const JSONRPCRequest& request)
     strWalletPass = request.params[0].get_str().c_str();
 
     if (strWalletPass.length() < 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "encryptwallet <passphrase>\n"
             "Encrypts the wallet with <passphrase>.");
 
@@ -2244,7 +2242,7 @@ UniValue lockunspent(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
-        throw runtime_error(
+        throw std::runtime_error(
             "lockunspent unlock ([{\"txid\":\"txid\",\"vout\":n},...])\n"
             "\nUpdates list of temporarily unspendable outputs.\n"
             "Temporarily lock (unlock=false) or unlock (unlock=true) specified transaction outputs.\n"
@@ -2308,7 +2306,7 @@ UniValue lockunspent(const JSONRPCRequest& request)
                 {"vout", UniValueType(UniValue::VNUM)},
             });
 
-        string txid = find_value(o, "txid").get_str();
+        std::string txid = find_value(o, "txid").get_str();
         if (!IsHex(txid))
             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected hex txid");
 
@@ -2335,7 +2333,7 @@ UniValue listlockunspent(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() > 0)
-        throw runtime_error(
+        throw std::runtime_error(
             "listlockunspent\n"
             "\nReturns list of temporarily unspendable outputs.\n"
             "See the lockunspent call to lock and unlock transactions for spending.\n"
@@ -2362,7 +2360,7 @@ UniValue listlockunspent(const JSONRPCRequest& request)
 
     LOCK2(cs_main, pwallet->cs_wallet);
 
-    vector<COutPoint> vOutpts;
+    std::vector<COutPoint> vOutpts;
     pwallet->ListLockedCoins(vOutpts);
 
     UniValue ret(UniValue::VARR);
@@ -2386,7 +2384,7 @@ UniValue settxfee(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 1)
-        throw runtime_error(
+        throw std::runtime_error(
             "settxfee amount\n"
             "\nSet the transaction fee per kB. Overwrites the paytxfee parameter.\n"
             "\nArguments:\n"
@@ -2415,7 +2413,7 @@ UniValue getwalletinfo(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 0)
-        throw runtime_error(
+        throw std::runtime_error(
             "getwalletinfo\n"
             "Returns an object containing various wallet state info.\n"
             "\nResult:\n"
@@ -2464,7 +2462,7 @@ UniValue resendwallettransactions(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() != 0)
-        throw runtime_error(
+        throw std::runtime_error(
             "resendwallettransactions\n"
             "Immediately re-broadcast unconfirmed wallet transactions to all peers.\n"
             "Intended only for testing; the wallet code periodically re-broadcasts\n"
@@ -2494,7 +2492,7 @@ UniValue listunspent(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() > 4)
-        throw runtime_error(
+        throw std::runtime_error(
             "listunspent ( minconf maxconf  [\"addresses\",...] [include_unsafe] )\n"
             "\nReturns array of unspent transaction outputs\n"
             "with between minconf and maxconf (inclusive) confirmations.\n"
@@ -2546,7 +2544,7 @@ UniValue listunspent(const JSONRPCRequest& request)
         nMaxDepth = request.params[1].get_int();
     }
 
-    set<CBitcoinAddress> setAddress;
+    std::set<CBitcoinAddress> setAddress;
     if (request.params.size() > 2 && !request.params[2].isNull()) {
         RPCTypeCheckArgument(request.params[2], UniValue::VARR);
         UniValue inputs = request.params[2].get_array();
@@ -2554,9 +2552,9 @@ UniValue listunspent(const JSONRPCRequest& request)
             const UniValue& input = inputs[idx];
             CBitcoinAddress address(input.get_str());
             if (!address.IsValid())
-                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, string("Invalid Bitcoin address: ")+input.get_str());
+                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, std::string("Invalid Bitcoin address: ")+input.get_str());
             if (setAddress.count(address))
-                throw JSONRPCError(RPC_INVALID_PARAMETER, string("Invalid parameter, duplicated address: ")+input.get_str());
+                throw JSONRPCError(RPC_INVALID_PARAMETER, std::string("Invalid parameter, duplicated address: ")+input.get_str());
            setAddress.insert(address);
         }
     }
@@ -2568,7 +2566,7 @@ UniValue listunspent(const JSONRPCRequest& request)
     }
 
     UniValue results(UniValue::VARR);
-    vector<COutput> vecOutputs;
+    std::vector<COutput> vecOutputs;
     assert(pwallet != NULL);
     LOCK2(cs_main, pwallet->cs_wallet);
     pwallet->AvailableCoins(vecOutputs, !include_unsafe, NULL, true);
@@ -2622,7 +2620,7 @@ UniValue fundrawtransaction(const JSONRPCRequest& request)
     }
 
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 2)
-        throw runtime_error(
+        throw std::runtime_error(
                             "fundrawtransaction \"hexstring\" ( options )\n"
                             "\nAdd inputs to a transaction until it has enough in value to meet its out value.\n"
                             "This will not modify existing inputs, and will add at most one change output to the outputs.\n"
@@ -2679,7 +2677,7 @@ UniValue fundrawtransaction(const JSONRPCRequest& request)
     CFeeRate feeRate = CFeeRate(0);
     bool overrideEstimatedFeerate = false;
     UniValue subtractFeeFromOutputs;
-    set<int> setSubtractFeeFromOutputs;
+    std::set<int> setSubtractFeeFromOutputs;
 
     if (request.params.size() > 1) {
       if (request.params[1].type() == UniValue::VBOOL) {
@@ -2758,7 +2756,7 @@ UniValue fundrawtransaction(const JSONRPCRequest& request)
     }
 
     CAmount nFeeOut;
-    string strFailReason;
+    std::string strFailReason;
 
     if (!pwallet->FundTransaction(tx, nFeeOut, overrideEstimatedFeerate, feeRate, changePosition, strFailReason, includeWatching, lockUnspents, setSubtractFeeFromOutputs, reserveChangeKey, changeAddress)) {
         throw JSONRPCError(RPC_INTERNAL_ERROR, strFailReason);
@@ -2782,14 +2780,14 @@ UniValue fundrawtransaction(const JSONRPCRequest& request)
 int64_t CalculateMaximumSignedTxSize(const CTransaction &tx, CWallet &wallet)
 {
     CMutableTransaction txNew(tx);
-    std::vector<pair<CWalletTx *, unsigned int>> vCoins;
+    std::vector<std::pair<CWalletTx*, unsigned int>> vCoins;
     // Look up the inputs.  We should have already checked that this transaction
     // IsAllFromMe(ISMINE_SPENDABLE), so every input should already be in our
     // wallet, with a valid index into the vout array.
     for (auto& input : tx.vin) {
         const auto mi = wallet.mapWallet.find(input.prevout.hash);
         assert(mi != wallet.mapWallet.end() && input.prevout.n < mi->second.tx->vout.size());
-        vCoins.emplace_back(make_pair(&(mi->second), input.prevout.n));
+        vCoins.emplace_back(std::make_pair(&(mi->second), input.prevout.n));
     }
     if (!wallet.DummySignTx(txNew, vCoins)) {
         // This should never happen, because IsAllFromMe(ISMINE_SPENDABLE)
@@ -2807,7 +2805,7 @@ UniValue bumpfee(const JSONRPCRequest& request)
         return NullUniValue;
 
     if (request.fHelp || request.params.size() < 1 || request.params.size() > 2) {
-        throw runtime_error(
+        throw std::runtime_error(
             "bumpfee \"txid\" ( options ) \n"
             "\nBumps the fee of an opt-in-RBF transaction T, replacing it with a new transaction B.\n"
             "An opt-in RBF transaction with the given txid must be in the wallet.\n"
diff --git a/src/wallet/test/wallet_tests.cpp b/src/wallet/test/wallet_tests.cpp
index 42b67fac39..c94491ca21 100644
--- a/src/wallet/test/wallet_tests.cpp
+++ b/src/wallet/test/wallet_tests.cpp
@@ -27,16 +27,14 @@ extern UniValue importmulti(const JSONRPCRequest& request);
 // we repeat those tests this many times and only complain if all iterations of the test fail
 #define RANDOM_REPEATS 5
 
-using namespace std;
-
 std::vector<std::unique_ptr<CWalletTx>> wtxn;
 
-typedef set<pair<const CWalletTx*,unsigned int> > CoinSet;
+typedef std::set<std::pair<const CWalletTx*,unsigned int> > CoinSet;
 
 BOOST_FIXTURE_TEST_SUITE(wallet_tests, WalletTestingSetup)
 
 static const CWallet testWallet;
-static vector<COutput> vCoins;
+static std::vector<COutput> vCoins;
 
 static void add_coin(const CAmount& nValue, int nAge = 6*24, bool fIsFromMe = false, int nInput=0)
 {
@@ -69,7 +67,7 @@ static void empty_wallet(void)
 
 static bool equal_sets(CoinSet a, CoinSet b)
 {
-    pair<CoinSet::iterator, CoinSet::iterator> ret = mismatch(a.begin(), a.end(), b.begin());
+    std::pair<CoinSet::iterator, CoinSet::iterator> ret = mismatch(a.begin(), a.end(), b.begin());
     return ret.first == a.end() && ret.second == b.end();
 }
 
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index dc3e0e28d1..07b34ae10e 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -33,8 +33,6 @@
 #include <boost/filesystem.hpp>
 #include <boost/thread.hpp>
 
-using namespace std;
-
 CWallet* pwalletMain = NULL;
 /** Transaction fee set by the user */
 CFeeRate payTxFee(DEFAULT_TRANSACTION_FEE);
@@ -66,8 +64,8 @@ const uint256 CMerkleTx::ABANDON_HASH(uint256S("00000000000000000000000000000000
 
 struct CompareValueOnly
 {
-    bool operator()(const pair<CAmount, pair<const CWalletTx*, unsigned int> >& t1,
-                    const pair<CAmount, pair<const CWalletTx*, unsigned int> >& t2) const
+    bool operator()(const std::pair<CAmount, std::pair<const CWalletTx*, unsigned int> >& t1,
+                    const std::pair<CAmount, std::pair<const CWalletTx*, unsigned int> >& t2) const
     {
         return t1.first < t2.first;
     }
@@ -186,7 +184,7 @@ bool CWallet::AddKeyPubKey(const CKey& secret, const CPubKey &pubkey)
 }
 
 bool CWallet::AddCryptedKey(const CPubKey &vchPubKey,
-                            const vector<unsigned char> &vchCryptedSecret)
+                            const std::vector<unsigned char> &vchCryptedSecret)
 {
     if (!CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret))
         return false;
@@ -404,9 +402,9 @@ bool CWallet::SetMaxVersion(int nVersion)
     return true;
 }
 
-set<uint256> CWallet::GetConflicts(const uint256& txid) const
+std::set<uint256> CWallet::GetConflicts(const uint256& txid) const
 {
-    set<uint256> result;
+    std::set<uint256> result;
     AssertLockHeld(cs_wallet);
 
     std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(txid);
@@ -471,7 +469,7 @@ bool CWallet::Verify()
     return true;
 }
 
-void CWallet::SyncMetaData(pair<TxSpends::iterator, TxSpends::iterator> range)
+void CWallet::SyncMetaData(std::pair<TxSpends::iterator, TxSpends::iterator> range)
 {
     // We want all the wallet transactions in range to have the same metadata as
     // the oldest (smallest nOrderPos).
@@ -515,7 +513,7 @@ void CWallet::SyncMetaData(pair<TxSpends::iterator, TxSpends::iterator> range)
 bool CWallet::IsSpent(const uint256& hash, unsigned int n) const
 {
     const COutPoint outpoint(hash, n);
-    pair<TxSpends::const_iterator, TxSpends::const_iterator> range;
+    std::pair<TxSpends::const_iterator, TxSpends::const_iterator> range;
     range = mapTxSpends.equal_range(outpoint);
 
     for (TxSpends::const_iterator it = range.first; it != range.second; ++it)
@@ -533,9 +531,9 @@ bool CWallet::IsSpent(const uint256& hash, unsigned int n) const
 
 void CWallet::AddToSpends(const COutPoint& outpoint, const uint256& wtxid)
 {
-    mapTxSpends.insert(make_pair(outpoint, wtxid));
+    mapTxSpends.insert(std::make_pair(outpoint, wtxid));
 
-    pair<TxSpends::iterator, TxSpends::iterator> range;
+    std::pair<TxSpends::iterator, TxSpends::iterator> range;
     range = mapTxSpends.equal_range(outpoint);
     SyncMetaData(range);
 }
@@ -661,20 +659,20 @@ DBErrors CWallet::ReorderTransactions()
     // Probably a bad idea to change the output of this
 
     // First: get all CWalletTx and CAccountingEntry into a sorted-by-time multimap.
-    typedef pair<CWalletTx*, CAccountingEntry*> TxPair;
-    typedef multimap<int64_t, TxPair > TxItems;
+    typedef std::pair<CWalletTx*, CAccountingEntry*> TxPair;
+    typedef std::multimap<int64_t, TxPair > TxItems;
     TxItems txByTime;
 
-    for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+    for (std::map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
     {
         CWalletTx* wtx = &((*it).second);
-        txByTime.insert(make_pair(wtx->nTimeReceived, TxPair(wtx, (CAccountingEntry*)0)));
+        txByTime.insert(std::make_pair(wtx->nTimeReceived, TxPair(wtx, (CAccountingEntry*)0)));
     }
-    list<CAccountingEntry> acentries;
+    std::list<CAccountingEntry> acentries;
     walletdb.ListAccountCreditDebit("", acentries);
     BOOST_FOREACH(CAccountingEntry& entry, acentries)
     {
-        txByTime.insert(make_pair(entry.nTime, TxPair((CWalletTx*)0, &entry)));
+        txByTime.insert(std::make_pair(entry.nTime, TxPair((CWalletTx*)0, &entry)));
     }
 
     nOrderPosNext = 0;
@@ -788,7 +786,7 @@ bool CWallet::GetAccountPubkey(CPubKey &pubKey, std::string strAccount, bool bFo
         else {
             // Check if the current key has been used
             CScript scriptPubKey = GetScriptForDestination(account.vchPubKey.GetID());
-            for (map<uint256, CWalletTx>::iterator it = mapWallet.begin();
+            for (std::map<uint256, CWalletTx>::iterator it = mapWallet.begin();
                  it != mapWallet.end() && account.vchPubKey.IsValid();
                  ++it)
                 BOOST_FOREACH(const CTxOut& txout, (*it).second.tx->vout)
@@ -860,7 +858,7 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFlushOnClose)
     uint256 hash = wtxIn.GetHash();
 
     // Inserts only if not already there, returns tx inserted or tx found
-    pair<map<uint256, CWalletTx>::iterator, bool> ret = mapWallet.insert(make_pair(hash, wtxIn));
+    std::pair<std::map<uint256, CWalletTx>::iterator, bool> ret = mapWallet.insert(std::make_pair(hash, wtxIn));
     CWalletTx& wtx = (*ret.first).second;
     wtx.BindWallet(this);
     bool fInsertedNew = ret.second;
@@ -868,7 +866,7 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFlushOnClose)
     {
         wtx.nTimeReceived = GetAdjustedTime();
         wtx.nOrderPos = IncOrderPosNext(&walletdb);
-        wtxOrdered.insert(make_pair(wtx.nOrderPos, TxPair(&wtx, (CAccountingEntry*)0)));
+        wtxOrdered.insert(std::make_pair(wtx.nOrderPos, TxPair(&wtx, (CAccountingEntry*)0)));
         wtx.nTimeSmart = ComputeTimeSmart(wtx);
         AddToSpends(hash);
     }
@@ -933,7 +931,7 @@ bool CWallet::LoadToWallet(const CWalletTx& wtxIn)
     mapWallet[hash] = wtxIn;
     CWalletTx& wtx = mapWallet[hash];
     wtx.BindWallet(this);
-    wtxOrdered.insert(make_pair(wtx.nOrderPos, TxPair(&wtx, (CAccountingEntry*)0)));
+    wtxOrdered.insert(std::make_pair(wtx.nOrderPos, TxPair(&wtx, (CAccountingEntry*)0)));
     AddToSpends(hash);
     BOOST_FOREACH(const CTxIn& txin, wtx.tx->vin) {
         if (mapWallet.count(txin.prevout.hash)) {
@@ -1132,7 +1130,7 @@ isminetype CWallet::IsMine(const CTxIn &txin) const
 {
     {
         LOCK(cs_wallet);
-        map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
+        std::map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
         if (mi != mapWallet.end())
         {
             const CWalletTx& prev = (*mi).second;
@@ -1149,7 +1147,7 @@ CAmount CWallet::GetDebit(const CTxIn &txin, const isminefilter& filter) const
 {
     {
         LOCK(cs_wallet);
-        map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
+        std::map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(txin.prevout.hash);
         if (mi != mapWallet.end())
         {
             const CWalletTx& prev = (*mi).second;
@@ -1323,7 +1321,7 @@ bool CWallet::SetHDChain(const CHDChain& chain, bool memonly)
 {
     LOCK(cs_wallet);
     if (!memonly && !CWalletDB(strWalletFile).WriteHDChain(chain))
-        throw runtime_error(std::string(__func__) + ": writing chain failed");
+        throw std::runtime_error(std::string(__func__) + ": writing chain failed");
 
     hdChain = chain;
     return true;
@@ -1351,7 +1349,7 @@ int CWalletTx::GetRequestCount() const
             // Generated block
             if (!hashUnset())
             {
-                map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
+                std::map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
                 if (mi != pwallet->mapRequestCount.end())
                     nRequests = (*mi).second;
             }
@@ -1359,7 +1357,7 @@ int CWalletTx::GetRequestCount() const
         else
         {
             // Did anyone request this transaction?
-            map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(GetHash());
+            std::map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(GetHash());
             if (mi != pwallet->mapRequestCount.end())
             {
                 nRequests = (*mi).second;
@@ -1367,7 +1365,7 @@ int CWalletTx::GetRequestCount() const
                 // How about the block it's in?
                 if (nRequests == 0 && !hashUnset())
                 {
-                    map<uint256, int>::const_iterator _mi = pwallet->mapRequestCount.find(hashBlock);
+                    std::map<uint256, int>::const_iterator _mi = pwallet->mapRequestCount.find(hashBlock);
                     if (_mi != pwallet->mapRequestCount.end())
                         nRequests = (*_mi).second;
                     else
@@ -1379,8 +1377,8 @@ int CWalletTx::GetRequestCount() const
     return nRequests;
 }
 
-void CWalletTx::GetAmounts(list<COutputEntry>& listReceived,
-                           list<COutputEntry>& listSent, CAmount& nFee, string& strSentAccount, const isminefilter& filter) const
+void CWalletTx::GetAmounts(std::list<COutputEntry>& listReceived,
+                           std::list<COutputEntry>& listSent, CAmount& nFee, std::string& strSentAccount, const isminefilter& filter) const
 {
     nFee = 0;
     listReceived.clear();
@@ -1435,15 +1433,15 @@ void CWalletTx::GetAmounts(list<COutputEntry>& listReceived,
 
 }
 
-void CWalletTx::GetAccountAmounts(const string& strAccount, CAmount& nReceived,
+void CWalletTx::GetAccountAmounts(const std::string& strAccount, CAmount& nReceived,
                                   CAmount& nSent, CAmount& nFee, const isminefilter& filter) const
 {
     nReceived = nSent = nFee = 0;
 
     CAmount allFee;
-    string strSentAccount;
-    list<COutputEntry> listReceived;
-    list<COutputEntry> listSent;
+    std::string strSentAccount;
+    std::list<COutputEntry> listReceived;
+    std::list<COutputEntry> listSent;
     GetAmounts(listReceived, listSent, allFee, strSentAccount, filter);
 
     if (strAccount == strSentAccount)
@@ -1458,7 +1456,7 @@ void CWalletTx::GetAccountAmounts(const string& strAccount, CAmount& nReceived,
         {
             if (pwallet->mapAddressBook.count(r.destination))
             {
-                map<CTxDestination, CAddressBookData>::const_iterator mi = pwallet->mapAddressBook.find(r.destination);
+                std::map<CTxDestination, CAddressBookData>::const_iterator mi = pwallet->mapAddressBook.find(r.destination);
                 if (mi != pwallet->mapAddressBook.end() && (*mi).second.name == strAccount)
                     nReceived += r.amount;
             }
@@ -1579,9 +1577,9 @@ bool CWalletTx::RelayWalletTransaction(CConnman* connman)
     return false;
 }
 
-set<uint256> CWalletTx::GetConflicts() const
+std::set<uint256> CWalletTx::GetConflicts() const
 {
-    set<uint256> result;
+    std::set<uint256> result;
     if (pwallet != NULL)
     {
         uint256 myHash = GetHash();
@@ -1806,14 +1804,14 @@ std::vector<uint256> CWallet::ResendWalletTransactionsBefore(int64_t nTime, CCon
 
     LOCK(cs_wallet);
     // Sort them in chronological order
-    multimap<unsigned int, CWalletTx*> mapSorted;
+    std::multimap<unsigned int, CWalletTx*> mapSorted;
     BOOST_FOREACH(PAIRTYPE(const uint256, CWalletTx)& item, mapWallet)
     {
         CWalletTx& wtx = item.second;
         // Don't rebroadcast if newer than nTime:
         if (wtx.nTimeReceived > nTime)
             continue;
-        mapSorted.insert(make_pair(wtx.nTimeReceived, &wtx));
+        mapSorted.insert(std::make_pair(wtx.nTimeReceived, &wtx));
     }
     BOOST_FOREACH(PAIRTYPE(const unsigned int, CWalletTx*)& item, mapSorted)
     {
@@ -1863,7 +1861,7 @@ CAmount CWallet::GetBalance() const
     CAmount nTotal = 0;
     {
         LOCK2(cs_main, cs_wallet);
-        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+        for (std::map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx* pcoin = &(*it).second;
             if (pcoin->IsTrusted())
@@ -1879,7 +1877,7 @@ CAmount CWallet::GetUnconfirmedBalance() const
     CAmount nTotal = 0;
     {
         LOCK2(cs_main, cs_wallet);
-        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+        for (std::map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx* pcoin = &(*it).second;
             if (!pcoin->IsTrusted() && pcoin->GetDepthInMainChain() == 0 && pcoin->InMempool())
@@ -1894,7 +1892,7 @@ CAmount CWallet::GetImmatureBalance() const
     CAmount nTotal = 0;
     {
         LOCK2(cs_main, cs_wallet);
-        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+        for (std::map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx* pcoin = &(*it).second;
             nTotal += pcoin->GetImmatureCredit();
@@ -1908,7 +1906,7 @@ CAmount CWallet::GetWatchOnlyBalance() const
     CAmount nTotal = 0;
     {
         LOCK2(cs_main, cs_wallet);
-        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+        for (std::map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx* pcoin = &(*it).second;
             if (pcoin->IsTrusted())
@@ -1924,7 +1922,7 @@ CAmount CWallet::GetUnconfirmedWatchOnlyBalance() const
     CAmount nTotal = 0;
     {
         LOCK2(cs_main, cs_wallet);
-        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+        for (std::map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx* pcoin = &(*it).second;
             if (!pcoin->IsTrusted() && pcoin->GetDepthInMainChain() == 0 && pcoin->InMempool())
@@ -1939,7 +1937,7 @@ CAmount CWallet::GetImmatureWatchOnlyBalance() const
     CAmount nTotal = 0;
     {
         LOCK2(cs_main, cs_wallet);
-        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+        for (std::map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx* pcoin = &(*it).second;
             nTotal += pcoin->GetImmatureWatchOnlyCredit();
@@ -1948,13 +1946,13 @@ CAmount CWallet::GetImmatureWatchOnlyBalance() const
     return nTotal;
 }
 
-void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed, const CCoinControl *coinControl, bool fIncludeZeroValue) const
+void CWallet::AvailableCoins(std::vector<COutput>& vCoins, bool fOnlyConfirmed, const CCoinControl *coinControl, bool fIncludeZeroValue) const
 {
     vCoins.clear();
 
     {
         LOCK2(cs_main, cs_wallet);
-        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+        for (std::map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const uint256& wtxid = it->first;
             const CWalletTx* pcoin = &(*it).second;
@@ -2022,10 +2020,10 @@ void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed, const
     }
 }
 
-static void ApproximateBestSubset(vector<pair<CAmount, pair<const CWalletTx*,unsigned int> > >vValue, const CAmount& nTotalLower, const CAmount& nTargetValue,
-                                  vector<char>& vfBest, CAmount& nBest, int iterations = 1000)
+static void ApproximateBestSubset(std::vector<std::pair<CAmount, std::pair<const CWalletTx*,unsigned int> > >vValue, const CAmount& nTotalLower, const CAmount& nTargetValue,
+                                  std::vector<char>& vfBest, CAmount& nBest, int iterations = 1000)
 {
-    vector<char> vfIncluded;
+    std::vector<char> vfIncluded;
 
     vfBest.assign(vValue.size(), true);
     nBest = nTotalLower;
@@ -2068,17 +2066,17 @@ static void ApproximateBestSubset(vector<pair<CAmount, pair<const CWalletTx*,uns
     }
 }
 
-bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const int nConfMine, const int nConfTheirs, const uint64_t nMaxAncestors, vector<COutput> vCoins,
-                                 set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& nValueRet) const
+bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const int nConfMine, const int nConfTheirs, const uint64_t nMaxAncestors, std::vector<COutput> vCoins,
+                                 std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& nValueRet) const
 {
     setCoinsRet.clear();
     nValueRet = 0;
 
     // List of values less than target
-    pair<CAmount, pair<const CWalletTx*,unsigned int> > coinLowestLarger;
+    std::pair<CAmount, std::pair<const CWalletTx*,unsigned int> > coinLowestLarger;
     coinLowestLarger.first = std::numeric_limits<CAmount>::max();
     coinLowestLarger.second.first = NULL;
-    vector<pair<CAmount, pair<const CWalletTx*,unsigned int> > > vValue;
+    std::vector<std::pair<CAmount, std::pair<const CWalletTx*,unsigned int> > > vValue;
     CAmount nTotalLower = 0;
 
     random_shuffle(vCoins.begin(), vCoins.end(), GetRandInt);
@@ -2099,7 +2097,7 @@ bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const int nConfMin
         int i = output.i;
         CAmount n = pcoin->tx->vout[i].nValue;
 
-        pair<CAmount,pair<const CWalletTx*,unsigned int> > coin = make_pair(n,make_pair(pcoin, i));
+        std::pair<CAmount,std::pair<const CWalletTx*,unsigned int> > coin = std::make_pair(n,std::make_pair(pcoin, i));
 
         if (n == nTargetValue)
         {
@@ -2140,7 +2138,7 @@ bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const int nConfMin
     // Solve subset sum by stochastic approximation
     std::sort(vValue.begin(), vValue.end(), CompareValueOnly());
     std::reverse(vValue.begin(), vValue.end());
-    vector<char> vfBest;
+    std::vector<char> vfBest;
     CAmount nBest;
 
     ApproximateBestSubset(vValue, nTotalLower, nTargetValue, vfBest, nBest);
@@ -2173,9 +2171,9 @@ bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const int nConfMin
     return true;
 }
 
-bool CWallet::SelectCoins(const vector<COutput>& vAvailableCoins, const CAmount& nTargetValue, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& nValueRet, const CCoinControl* coinControl) const
+bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAmount& nTargetValue, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& nValueRet, const CCoinControl* coinControl) const
 {
-    vector<COutput> vCoins(vAvailableCoins);
+    std::vector<COutput> vCoins(vAvailableCoins);
 
     // coin control -> return all selected outputs (we want all selected to go into the transaction for sure)
     if (coinControl && coinControl->HasSelected() && !coinControl->fAllowOtherInputs)
@@ -2185,13 +2183,13 @@ bool CWallet::SelectCoins(const vector<COutput>& vAvailableCoins, const CAmount&
             if (!out.fSpendable)
                  continue;
             nValueRet += out.tx->tx->vout[out.i].nValue;
-            setCoinsRet.insert(make_pair(out.tx, out.i));
+            setCoinsRet.insert(std::make_pair(out.tx, out.i));
         }
         return (nValueRet >= nTargetValue);
     }
 
     // calculate value from preset inputs and store them
-    set<pair<const CWalletTx*, uint32_t> > setPresetCoins;
+    std::set<std::pair<const CWalletTx*, uint32_t> > setPresetCoins;
     CAmount nValueFromPresetInputs = 0;
 
     std::vector<COutPoint> vPresetInputs;
@@ -2199,7 +2197,7 @@ bool CWallet::SelectCoins(const vector<COutput>& vAvailableCoins, const CAmount&
         coinControl->ListSelected(vPresetInputs);
     BOOST_FOREACH(const COutPoint& outpoint, vPresetInputs)
     {
-        map<uint256, CWalletTx>::const_iterator it = mapWallet.find(outpoint.hash);
+        std::map<uint256, CWalletTx>::const_iterator it = mapWallet.find(outpoint.hash);
         if (it != mapWallet.end())
         {
             const CWalletTx* pcoin = &it->second;
@@ -2207,15 +2205,15 @@ bool CWallet::SelectCoins(const vector<COutput>& vAvailableCoins, const CAmount&
             if (pcoin->tx->vout.size() <= outpoint.n)
                 return false;
             nValueFromPresetInputs += pcoin->tx->vout[outpoint.n].nValue;
-            setPresetCoins.insert(make_pair(pcoin, outpoint.n));
+            setPresetCoins.insert(std::make_pair(pcoin, outpoint.n));
         } else
             return false; // TODO: Allow non-wallet inputs
     }
 
     // remove preset inputs from vCoins
-    for (vector<COutput>::iterator it = vCoins.begin(); it != vCoins.end() && coinControl && coinControl->HasSelected();)
+    for (std::vector<COutput>::iterator it = vCoins.begin(); it != vCoins.end() && coinControl && coinControl->HasSelected();)
     {
-        if (setPresetCoins.count(make_pair(it->tx, it->i)))
+        if (setPresetCoins.count(std::make_pair(it->tx, it->i)))
             it = vCoins.erase(it);
         else
             ++it;
@@ -2244,7 +2242,7 @@ bool CWallet::SelectCoins(const vector<COutput>& vAvailableCoins, const CAmount&
 
 bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool overrideEstimatedFeeRate, const CFeeRate& specificFeeRate, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, bool lockUnspents, const std::set<int>& setSubtractFeeFromOutputs, bool keepReserveKey, const CTxDestination& destChange)
 {
-    vector<CRecipient> vecSend;
+    std::vector<CRecipient> vecSend;
 
     // Turn the txout set into a CRecipient vector
     for (size_t idx = 0; idx < tx.vout.size(); idx++)
@@ -2298,7 +2296,7 @@ bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool ov
     return true;
 }
 
-bool CWallet::CreateTransaction(const vector<CRecipient>& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, CAmount& nFeeRet,
+bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, CAmount& nFeeRet,
                                 int& nChangePosInOut, std::string& strFailReason, const CCoinControl* coinControl, bool sign)
 {
     CAmount nValue = 0;
@@ -2359,7 +2357,7 @@ bool CWallet::CreateTransaction(const vector<CRecipient>& vecSend, CWalletTx& wt
     assert(txNew.nLockTime < LOCKTIME_THRESHOLD);
 
     {
-        set<pair<const CWalletTx*,unsigned int> > setCoins;
+        std::set<std::pair<const CWalletTx*,unsigned int> > setCoins;
         LOCK2(cs_main, cs_wallet);
         {
             std::vector<COutput> vAvailableCoins;
@@ -2499,7 +2497,7 @@ bool CWallet::CreateTransaction(const vector<CRecipient>& vecSend, CWalletTx& wt
                             return false;
                         }
 
-                        vector<CTxOut>::iterator position = txNew.vout.begin()+nChangePosInOut;
+                        std::vector<CTxOut>::iterator position = txNew.vout.begin()+nChangePosInOut;
                         txNew.vout.insert(position, newTxOut);
                     }
                 }
@@ -2569,7 +2567,7 @@ bool CWallet::CreateTransaction(const vector<CRecipient>& vecSend, CWalletTx& wt
                     // to be addressed so we avoid creating too small an output.
                     if (nFeeRet > nFeeNeeded && nChangePosInOut != -1 && nSubtractFeeFromAmount == 0) {
                         CAmount extraFeePaid = nFeeRet - nFeeNeeded;
-                        vector<CTxOut>::iterator change_position = txNew.vout.begin()+nChangePosInOut;
+                        std::vector<CTxOut>::iterator change_position = txNew.vout.begin()+nChangePosInOut;
                         change_position->nValue += extraFeePaid;
                         nFeeRet -= extraFeePaid;
                     }
@@ -2579,7 +2577,7 @@ bool CWallet::CreateTransaction(const vector<CRecipient>& vecSend, CWalletTx& wt
                 // Try to reduce change to include necessary fee
                 if (nChangePosInOut != -1 && nSubtractFeeFromAmount == 0) {
                     CAmount additionalFeeNeeded = nFeeNeeded - nFeeRet;
-                    vector<CTxOut>::iterator change_position = txNew.vout.begin()+nChangePosInOut;
+                    std::vector<CTxOut>::iterator change_position = txNew.vout.begin()+nChangePosInOut;
                     // Only reduce change if remaining amount is still a large enough output.
                     if (change_position->nValue >= MIN_FINAL_CHANGE + additionalFeeNeeded) {
                         change_position->nValue -= additionalFeeNeeded;
@@ -2705,7 +2703,7 @@ bool CWallet::AddAccountingEntry(const CAccountingEntry& acentry, CWalletDB *pwa
 
     laccentries.push_back(acentry);
     CAccountingEntry & entry = laccentries.back();
-    wtxOrdered.insert(make_pair(entry.nOrderPos, TxPair((CWalletTx*)0, &entry)));
+    wtxOrdered.insert(std::make_pair(entry.nOrderPos, TxPair((CWalletTx*)0, &entry)));
 
     return true;
 }
@@ -2770,7 +2768,7 @@ DBErrors CWallet::LoadWallet(bool& fFirstRunRet)
     return DB_LOAD_OK;
 }
 
-DBErrors CWallet::ZapSelectTx(vector<uint256>& vHashIn, vector<uint256>& vHashOut)
+DBErrors CWallet::ZapSelectTx(std::vector<uint256>& vHashIn, std::vector<uint256>& vHashOut)
 {
     if (!fFileBacked)
         return DB_LOAD_OK;
@@ -2825,7 +2823,7 @@ DBErrors CWallet::ZapWalletTx(std::vector<CWalletTx>& vWtx)
 }
 
 
-bool CWallet::SetAddressBook(const CTxDestination& address, const string& strName, const string& strPurpose)
+bool CWallet::SetAddressBook(const CTxDestination& address, const std::string& strName, const std::string& strPurpose)
 {
     bool fUpdated = false;
     {
@@ -2854,7 +2852,7 @@ bool CWallet::DelAddressBook(const CTxDestination& address)
         {
             // Delete destdata tuples associated with address
             std::string strAddress = CBitcoinAddress(address).ToString();
-            BOOST_FOREACH(const PAIRTYPE(string, string) &item, mapAddressBook[address].destdata)
+            BOOST_FOREACH(const PAIRTYPE(std::string, std::string) &item, mapAddressBook[address].destdata)
             {
                 CWalletDB(strWalletFile).EraseDestData(strAddress, item.first);
             }
@@ -2897,7 +2895,7 @@ bool CWallet::NewKeyPool()
         if (IsLocked())
             return false;
 
-        int64_t nKeys = max(GetArg("-keypool", DEFAULT_KEYPOOL_SIZE), (int64_t)0);
+        int64_t nKeys = std::max(GetArg("-keypool", DEFAULT_KEYPOOL_SIZE), (int64_t)0);
         for (int i = 0; i < nKeys; i++)
         {
             int64_t nIndex = i+1;
@@ -2924,7 +2922,7 @@ bool CWallet::TopUpKeyPool(unsigned int kpSize)
         if (kpSize > 0)
             nTargetSize = kpSize;
         else
-            nTargetSize = max(GetArg("-keypool", DEFAULT_KEYPOOL_SIZE), (int64_t) 0);
+            nTargetSize = std::max(GetArg("-keypool", DEFAULT_KEYPOOL_SIZE), (int64_t) 0);
 
         while (setKeyPool.size() < (nTargetSize + 1))
         {
@@ -2932,7 +2930,7 @@ bool CWallet::TopUpKeyPool(unsigned int kpSize)
             if (!setKeyPool.empty())
                 nEnd = *(--setKeyPool.end()) + 1;
             if (!walletdb.WritePool(nEnd, CKeyPool(GenerateNewKey())))
-                throw runtime_error(std::string(__func__) + ": writing generated key failed");
+                throw std::runtime_error(std::string(__func__) + ": writing generated key failed");
             setKeyPool.insert(nEnd);
             LogPrintf("keypool added key %d, size=%u\n", nEnd, setKeyPool.size());
         }
@@ -2959,9 +2957,9 @@ void CWallet::ReserveKeyFromKeyPool(int64_t& nIndex, CKeyPool& keypool)
         nIndex = *(setKeyPool.begin());
         setKeyPool.erase(setKeyPool.begin());
         if (!walletdb.ReadPool(nIndex, keypool))
-            throw runtime_error(std::string(__func__) + ": read failed");
+            throw std::runtime_error(std::string(__func__) + ": read failed");
         if (!HaveKey(keypool.vchPubKey.GetID()))
-            throw runtime_error(std::string(__func__) + ": unknown key in key pool");
+            throw std::runtime_error(std::string(__func__) + ": unknown key in key pool");
         assert(keypool.vchPubKey.IsValid());
         LogPrintf("keypool reserve %d\n", nIndex);
     }
@@ -3020,14 +3018,14 @@ int64_t CWallet::GetOldestKeyPoolTime()
     CWalletDB walletdb(strWalletFile);
     int64_t nIndex = *(setKeyPool.begin());
     if (!walletdb.ReadPool(nIndex, keypool))
-        throw runtime_error(std::string(__func__) + ": read oldest key in keypool failed");
+        throw std::runtime_error(std::string(__func__) + ": read oldest key in keypool failed");
     assert(keypool.vchPubKey.IsValid());
     return keypool.nTime;
 }
 
 std::map<CTxDestination, CAmount> CWallet::GetAddressBalances()
 {
-    map<CTxDestination, CAmount> balances;
+    std::map<CTxDestination, CAmount> balances;
 
     {
         LOCK(cs_wallet);
@@ -3065,11 +3063,11 @@ std::map<CTxDestination, CAmount> CWallet::GetAddressBalances()
     return balances;
 }
 
-set< set<CTxDestination> > CWallet::GetAddressGroupings()
+std::set< std::set<CTxDestination> > CWallet::GetAddressGroupings()
 {
     AssertLockHeld(cs_wallet); // mapWallet
-    set< set<CTxDestination> > groupings;
-    set<CTxDestination> grouping;
+    std::set< std::set<CTxDestination> > groupings;
+    std::set<CTxDestination> grouping;
 
     BOOST_FOREACH(PAIRTYPE(uint256, CWalletTx) walletEntry, mapWallet)
     {
@@ -3122,20 +3120,20 @@ set< set<CTxDestination> > CWallet::GetAddressGroupings()
             }
     }
 
-    set< set<CTxDestination>* > uniqueGroupings; // a set of pointers to groups of addresses
-    map< CTxDestination, set<CTxDestination>* > setmap;  // map addresses to the unique group containing it
-    BOOST_FOREACH(set<CTxDestination> _grouping, groupings)
+    std::set< std::set<CTxDestination>* > uniqueGroupings; // a set of pointers to groups of addresses
+    std::map< CTxDestination, std::set<CTxDestination>* > setmap;  // map addresses to the unique group containing it
+    BOOST_FOREACH(std::set<CTxDestination> _grouping, groupings)
     {
         // make a set of all the groups hit by this new group
-        set< set<CTxDestination>* > hits;
-        map< CTxDestination, set<CTxDestination>* >::iterator it;
+        std::set< std::set<CTxDestination>* > hits;
+        std::map< CTxDestination, std::set<CTxDestination>* >::iterator it;
         BOOST_FOREACH(CTxDestination address, _grouping)
             if ((it = setmap.find(address)) != setmap.end())
                 hits.insert((*it).second);
 
         // merge all hit groups into a new single group and delete old groups
-        set<CTxDestination>* merged = new set<CTxDestination>(_grouping);
-        BOOST_FOREACH(set<CTxDestination>* hit, hits)
+        std::set<CTxDestination>* merged = new std::set<CTxDestination>(_grouping);
+        BOOST_FOREACH(std::set<CTxDestination>* hit, hits)
         {
             merged->insert(hit->begin(), hit->end());
             uniqueGroupings.erase(hit);
@@ -3148,8 +3146,8 @@ set< set<CTxDestination> > CWallet::GetAddressGroupings()
             setmap[element] = merged;
     }
 
-    set< set<CTxDestination> > ret;
-    BOOST_FOREACH(set<CTxDestination>* uniqueGrouping, uniqueGroupings)
+    std::set< std::set<CTxDestination> > ret;
+    BOOST_FOREACH(std::set<CTxDestination>* uniqueGrouping, uniqueGroupings)
     {
         ret.insert(*uniqueGrouping);
         delete uniqueGrouping;
@@ -3169,7 +3167,7 @@ CAmount CWallet::GetAccountBalance(CWalletDB& walletdb, const std::string& strAc
     CAmount nBalance = 0;
 
     // Tally wallet transactions
-    for (map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+    for (std::map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
     {
         const CWalletTx& wtx = (*it).second;
         if (!CheckFinalTx(wtx) || wtx.GetBlocksToMaturity() > 0 || wtx.GetDepthInMainChain() < 0)
@@ -3192,11 +3190,11 @@ CAmount CWallet::GetAccountBalance(CWalletDB& walletdb, const std::string& strAc
 std::set<CTxDestination> CWallet::GetAccountAddresses(const std::string& strAccount) const
 {
     LOCK(cs_wallet);
-    set<CTxDestination> result;
+    std::set<CTxDestination> result;
     BOOST_FOREACH(const PAIRTYPE(CTxDestination, CAddressBookData)& item, mapAddressBook)
     {
         const CTxDestination& address = item.first;
-        const string& strName = item.second.name;
+        const std::string& strName = item.second.name;
         if (strName == strAccount)
             result.insert(address);
     }
@@ -3236,7 +3234,7 @@ void CReserveKey::ReturnKey()
     vchPubKey = CPubKey();
 }
 
-void CWallet::GetAllReserveKeys(set<CKeyID>& setAddress) const
+void CWallet::GetAllReserveKeys(std::set<CKeyID>& setAddress) const
 {
     setAddress.clear();
 
@@ -3247,11 +3245,11 @@ void CWallet::GetAllReserveKeys(set<CKeyID>& setAddress) const
     {
         CKeyPool keypool;
         if (!walletdb.ReadPool(id, keypool))
-            throw runtime_error(std::string(__func__) + ": read failed");
+            throw std::runtime_error(std::string(__func__) + ": read failed");
         assert(keypool.vchPubKey.IsValid());
         CKeyID keyID = keypool.vchPubKey.GetID();
         if (!HaveKey(keyID))
-            throw runtime_error(std::string(__func__) + ": unknown key in key pool");
+            throw std::runtime_error(std::string(__func__) + ": unknown key in key pool");
         setAddress.insert(keyID);
     }
 }
@@ -3261,7 +3259,7 @@ void CWallet::UpdatedTransaction(const uint256 &hashTx)
     {
         LOCK(cs_wallet);
         // Only notify UI if this transaction is in this wallet
-        map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(hashTx);
+        std::map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(hashTx);
         if (mi != mapWallet.end())
             NotifyTransactionChanged(this, hashTx, CT_UPDATED);
     }
@@ -3932,7 +3930,7 @@ int CMerkleTx::GetBlocksToMaturity() const
 {
     if (!IsCoinBase())
         return 0;
-    return max(0, (COINBASE_MATURITY+1) - GetDepthInMainChain());
+    return std::max(0, (COINBASE_MATURITY+1) - GetDepthInMainChain());
 }
 
 
diff --git a/src/wallet/walletdb.cpp b/src/wallet/walletdb.cpp
index 5ba9f150a8..d017965385 100644
--- a/src/wallet/walletdb.cpp
+++ b/src/wallet/walletdb.cpp
@@ -22,8 +22,6 @@
 #include <boost/foreach.hpp>
 #include <boost/thread.hpp>
 
-using namespace std;
-
 static uint64_t nAccountingEntryNumber = 0;
 
 static std::atomic<unsigned int> nWalletDBUpdateCounter;
@@ -32,30 +30,30 @@ static std::atomic<unsigned int> nWalletDBUpdateCounter;
 // CWalletDB
 //
 
-bool CWalletDB::WriteName(const string& strAddress, const string& strName)
+bool CWalletDB::WriteName(const std::string& strAddress, const std::string& strName)
 {
     nWalletDBUpdateCounter++;
-    return Write(make_pair(string("name"), strAddress), strName);
+    return Write(make_pair(std::string("name"), strAddress), strName);
 }
 
-bool CWalletDB::EraseName(const string& strAddress)
+bool CWalletDB::EraseName(const std::string& strAddress)
 {
     // This should only be used for sending addresses, never for receiving addresses,
     // receiving addresses must always have an address book entry if they're not change return.
     nWalletDBUpdateCounter++;
-    return Erase(make_pair(string("name"), strAddress));
+    return Erase(make_pair(std::string("name"), strAddress));
 }
 
-bool CWalletDB::WritePurpose(const string& strAddress, const string& strPurpose)
+bool CWalletDB::WritePurpose(const std::string& strAddress, const std::string& strPurpose)
 {
     nWalletDBUpdateCounter++;
-    return Write(make_pair(string("purpose"), strAddress), strPurpose);
+    return Write(make_pair(std::string("purpose"), strAddress), strPurpose);
 }
 
-bool CWalletDB::ErasePurpose(const string& strPurpose)
+bool CWalletDB::ErasePurpose(const std::string& strPurpose)
 {
     nWalletDBUpdateCounter++;
-    return Erase(make_pair(string("purpose"), strPurpose));
+    return Erase(make_pair(std::string("purpose"), strPurpose));
 }
 
 bool CWalletDB::WriteTx(const CWalletTx& wtx)
@@ -183,15 +181,15 @@ bool CWalletDB::WriteMinVersion(int nVersion)
     return Write(std::string("minversion"), nVersion);
 }
 
-bool CWalletDB::ReadAccount(const string& strAccount, CAccount& account)
+bool CWalletDB::ReadAccount(const std::string& strAccount, CAccount& account)
 {
     account.SetNull();
-    return Read(make_pair(string("acc"), strAccount), account);
+    return Read(make_pair(std::string("acc"), strAccount), account);
 }
 
-bool CWalletDB::WriteAccount(const string& strAccount, const CAccount& account)
+bool CWalletDB::WriteAccount(const std::string& strAccount, const CAccount& account)
 {
-    return Write(make_pair(string("acc"), strAccount), account);
+    return Write(make_pair(std::string("acc"), strAccount), account);
 }
 
 bool CWalletDB::WriteAccountingEntry(const uint64_t nAccEntryNum, const CAccountingEntry& acentry)
@@ -204,9 +202,9 @@ bool CWalletDB::WriteAccountingEntry_Backend(const CAccountingEntry& acentry)
     return WriteAccountingEntry(++nAccountingEntryNumber, acentry);
 }
 
-CAmount CWalletDB::GetAccountCreditDebit(const string& strAccount)
+CAmount CWalletDB::GetAccountCreditDebit(const std::string& strAccount)
 {
-    list<CAccountingEntry> entries;
+    std::list<CAccountingEntry> entries;
     ListAccountCreditDebit(strAccount, entries);
 
     CAmount nCreditDebit = 0;
@@ -216,20 +214,20 @@ CAmount CWalletDB::GetAccountCreditDebit(const string& strAccount)
     return nCreditDebit;
 }
 
-void CWalletDB::ListAccountCreditDebit(const string& strAccount, list<CAccountingEntry>& entries)
+void CWalletDB::ListAccountCreditDebit(const std::string& strAccount, std::list<CAccountingEntry>& entries)
 {
     bool fAllAccounts = (strAccount == "*");
 
     Dbc* pcursor = GetCursor();
     if (!pcursor)
-        throw runtime_error(std::string(__func__) + ": cannot create DB cursor");
+        throw std::runtime_error(std::string(__func__) + ": cannot create DB cursor");
     bool setRange = true;
     while (true)
     {
         // Read next record
         CDataStream ssKey(SER_DISK, CLIENT_VERSION);
         if (setRange)
-            ssKey << std::make_pair(std::string("acentry"), std::make_pair((fAllAccounts ? string("") : strAccount), uint64_t(0)));
+            ssKey << std::make_pair(std::string("acentry"), std::make_pair((fAllAccounts ? std::string("") : strAccount), uint64_t(0)));
         CDataStream ssValue(SER_DISK, CLIENT_VERSION);
         int ret = ReadAtCursor(pcursor, ssKey, ssValue, setRange);
         setRange = false;
@@ -238,11 +236,11 @@ void CWalletDB::ListAccountCreditDebit(const string& strAccount, list<CAccountin
         else if (ret != 0)
         {
             pcursor->close();
-            throw runtime_error(std::string(__func__) + ": error scanning DB");
+            throw std::runtime_error(std::string(__func__) + ": error scanning DB");
         }
 
         // Unserialize
-        string strType;
+        std::string strType;
         ssKey >> strType;
         if (strType != "acentry")
             break;
@@ -268,7 +266,7 @@ public:
     bool fIsEncrypted;
     bool fAnyUnordered;
     int nFileVersion;
-    vector<uint256> vWalletUpgrade;
+    std::vector<uint256> vWalletUpgrade;
 
     CWalletScanState() {
         nKeys = nCKeys = nWatchKeys = nKeyMeta = 0;
@@ -280,7 +278,7 @@ public:
 
 bool
 ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
-             CWalletScanState &wss, string& strType, string& strErr)
+             CWalletScanState &wss, std::string& strType, std::string& strErr)
 {
     try {
         // Unserialize
@@ -289,13 +287,13 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
         ssKey >> strType;
         if (strType == "name")
         {
-            string strAddress;
+            std::string strAddress;
             ssKey >> strAddress;
             ssValue >> pwallet->mapAddressBook[CBitcoinAddress(strAddress).Get()].name;
         }
         else if (strType == "purpose")
         {
-            string strAddress;
+            std::string strAddress;
             ssKey >> strAddress;
             ssValue >> pwallet->mapAddressBook[CBitcoinAddress(strAddress).Get()].purpose;
         }
@@ -336,7 +334,7 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
         }
         else if (strType == "acentry")
         {
-            string strAccount;
+            std::string strAccount;
             ssKey >> strAccount;
             uint64_t nNumber;
             ssKey >> nNumber;
@@ -449,7 +447,7 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
                 strErr = "Error reading wallet database: CPubKey corrupt";
                 return false;
             }
-            vector<unsigned char> vchPrivKey;
+            std::vector<unsigned char> vchPrivKey;
             ssValue >> vchPrivKey;
             wss.nCKeys++;
 
@@ -562,7 +560,7 @@ DBErrors CWalletDB::LoadWallet(CWallet* pwallet)
     LOCK(pwallet->cs_wallet);
     try {
         int nMinVersion = 0;
-        if (Read((string)"minversion", nMinVersion))
+        if (Read((std::string)"minversion", nMinVersion))
         {
             if (nMinVersion > CLIENT_VERSION)
                 return DB_TOO_NEW;
@@ -592,7 +590,7 @@ DBErrors CWalletDB::LoadWallet(CWallet* pwallet)
             }
 
             // Try to be tolerant of single corrupt records:
-            string strType, strErr;
+            std::string strType, strErr;
             if (!ReadKeyValue(pwallet, ssKey, ssValue, wss, strType, strErr))
             {
                 // losing keys is considered a catastrophic error, anything else
@@ -659,14 +657,14 @@ DBErrors CWalletDB::LoadWallet(CWallet* pwallet)
     return result;
 }
 
-DBErrors CWalletDB::FindWalletTx(vector<uint256>& vTxHash, vector<CWalletTx>& vWtx)
+DBErrors CWalletDB::FindWalletTx(std::vector<uint256>& vTxHash, std::vector<CWalletTx>& vWtx)
 {
     bool fNoncriticalErrors = false;
     DBErrors result = DB_LOAD_OK;
 
     try {
         int nMinVersion = 0;
-        if (Read((string)"minversion", nMinVersion))
+        if (Read((std::string)"minversion", nMinVersion))
         {
             if (nMinVersion > CLIENT_VERSION)
                 return DB_TOO_NEW;
@@ -694,7 +692,7 @@ DBErrors CWalletDB::FindWalletTx(vector<uint256>& vTxHash, vector<CWalletTx>& vW
                 return DB_CORRUPT;
             }
 
-            string strType;
+            std::string strType;
             ssKey >> strType;
             if (strType == "tx") {
                 uint256 hash;
@@ -722,11 +720,11 @@ DBErrors CWalletDB::FindWalletTx(vector<uint256>& vTxHash, vector<CWalletTx>& vW
     return result;
 }
 
-DBErrors CWalletDB::ZapSelectTx(vector<uint256>& vTxHashIn, vector<uint256>& vTxHashOut)
+DBErrors CWalletDB::ZapSelectTx(std::vector<uint256>& vTxHashIn, std::vector<uint256>& vTxHashOut)
 {
     // build list of wallet TXs and hashes
-    vector<uint256> vTxHash;
-    vector<CWalletTx> vWtx;
+    std::vector<uint256> vTxHash;
+    std::vector<CWalletTx> vWtx;
     DBErrors err = FindWalletTx(vTxHash, vWtx);
     if (err != DB_LOAD_OK) {
         return err;
@@ -737,7 +735,7 @@ DBErrors CWalletDB::ZapSelectTx(vector<uint256>& vTxHashIn, vector<uint256>& vTx
 
     // erase each matching wallet TX
     bool delerror = false;
-    vector<uint256>::iterator it = vTxHashIn.begin();
+    std::vector<uint256>::iterator it = vTxHashIn.begin();
     BOOST_FOREACH (uint256 hash, vTxHash) {
         while (it < vTxHashIn.end() && (*it) < hash) {
             it++;
@@ -760,10 +758,10 @@ DBErrors CWalletDB::ZapSelectTx(vector<uint256>& vTxHashIn, vector<uint256>& vTx
     return DB_LOAD_OK;
 }
 
-DBErrors CWalletDB::ZapWalletTx(vector<CWalletTx>& vWtx)
+DBErrors CWalletDB::ZapWalletTx(std::vector<CWalletTx>& vWtx)
 {
     // build list of wallet TXs
-    vector<uint256> vTxHash;
+    std::vector<uint256> vTxHash;
     DBErrors err = FindWalletTx(vTxHash, vWtx);
     if (err != DB_LOAD_OK)
         return err;