4 files changed, 16 insertions, 16 deletions

diff --git a/src/network/access/qftp.cpp b/src/network/access/qftp.cpp
index 0c1e04efee..ac6a5f46b1 100644
--- a/src/network/access/qftp.cpp
+++ b/src/network/access/qftp.cpp
@@ -587,10 +587,10 @@ static void _q_parseDosDir(const QStringList &tokens, const QString &userName, Q
     int permissions = QUrlInfo::ReadOwner | QUrlInfo::WriteOwner
                       | QUrlInfo::ReadGroup | QUrlInfo::WriteGroup
                       | QUrlInfo::ReadOther | QUrlInfo::WriteOther;
-    QString ext;
+    QStringRef ext;
     int extIndex = name.lastIndexOf(QLatin1Char('.'));
     if (extIndex != -1)
-        ext = name.mid(extIndex + 1);
+        ext = name.midRef(extIndex + 1);
     if (ext == QLatin1String("exe") || ext == QLatin1String("bat") || ext == QLatin1String("com"))
         permissions |= QUrlInfo::ExeOwner | QUrlInfo::ExeGroup | QUrlInfo::ExeOther;
     info->setPermissions(permissions);
@@ -961,19 +961,19 @@ void QFtpPI::readyRead()
         endOfMultiLine[3] = QLatin1Char(' ');
         QString lineCont(endOfMultiLine);
         lineCont[3] = QLatin1Char('-');
-        QString lineLeft4 = line.left(4);
+        QStringRef lineLeft4 = line.leftRef(4);
 
         while (lineLeft4 != endOfMultiLine) {
             if (lineLeft4 == lineCont)
-                replyText += line.mid(4); // strip 'xyz-'
+                replyText += line.midRef(4); // strip 'xyz-'
             else
                 replyText += line;
             if (!commandSocket.canReadLine())
                 return;
             line = QString::fromLatin1(commandSocket.readLine());
-            lineLeft4 = line.left(4);
+            lineLeft4 = line.leftRef(4);
         }
-        replyText += line.mid(4); // strip reply code 'xyz '
+        replyText += line.midRef(4); // strip reply code 'xyz '
         if (replyText.endsWith(QLatin1String("\r\n")))
             replyText.chop(2);
 
@@ -1089,7 +1089,7 @@ bool QFtpPI::processReply()
         } else {
             ++portPos;
             QChar delimiter = replyText.at(portPos);
-            QStringList epsvParameters = replyText.mid(portPos).split(delimiter);
+            const auto epsvParameters = replyText.midRef(portPos).split(delimiter);
 
             waitForDtpToConnect = true;
             dtp.connectToHost(commandSocket.peerAddress().toString(),
diff --git a/src/network/kernel/qhostaddress.cpp b/src/network/kernel/qhostaddress.cpp
index 6ccf40680a..0dbe1112cd 100644
--- a/src/network/kernel/qhostaddress.cpp
+++ b/src/network/kernel/qhostaddress.cpp
@@ -1041,11 +1041,11 @@ QPair<QHostAddress, int> QHostAddress::parseSubnet(const QString &subnet)
         return invalid;         // invalid netmask
 
     // parse the address manually
-    QStringList parts = netStr.split(QLatin1Char('.'));
+    auto parts = netStr.splitRef(QLatin1Char('.'));
     if (parts.isEmpty() || parts.count() > 4)
         return invalid;         // invalid IPv4 address
 
-    if (parts.last().isEmpty())
+    if (parts.constLast().isEmpty())
         parts.removeLast();
 
     quint32 addr = 0;
diff --git a/src/network/ssl/qsslsocket_mac.cpp b/src/network/ssl/qsslsocket_mac.cpp
index 4122db4b65..da9c8c165b 100644
--- a/src/network/ssl/qsslsocket_mac.cpp
+++ b/src/network/ssl/qsslsocket_mac.cpp
@@ -867,7 +867,7 @@ QSslCipher QSslSocketBackendPrivate::QSslCipher_from_SSLCipherSuite(SSLCipherSui
         ciph.d->protocolString = QLatin1String("TLSv1.2");
     }
 
-    const QStringList bits = ciph.d->name.split('-');
+    const auto bits = ciph.d->name.splitRef(QLatin1Char('-'));
     if (bits.size() >= 2) {
         if (bits.size() == 2 || bits.size() == 3) {
             ciph.d->keyExchangeMethod = QLatin1String("RSA");
diff --git a/src/network/ssl/qsslsocket_openssl.cpp b/src/network/ssl/qsslsocket_openssl.cpp
index b092dde0c9..4f62f53a93 100644
--- a/src/network/ssl/qsslsocket_openssl.cpp
+++ b/src/network/ssl/qsslsocket_openssl.cpp
@@ -226,13 +226,13 @@ QSslCipher QSslSocketBackendPrivate::QSslCipher_from_SSL_CIPHER(SSL_CIPHER *ciph
     char buf [256];
     QString descriptionOneLine = QString::fromLatin1(q_SSL_CIPHER_description(cipher, buf, sizeof(buf)));
 
-    QStringList descriptionList = descriptionOneLine.split(QLatin1Char(' '), QString::SkipEmptyParts);
+    const auto descriptionList = descriptionOneLine.splitRef(QLatin1Char(' '), QString::SkipEmptyParts);
     if (descriptionList.size() > 5) {
         // ### crude code.
         ciph.d->isNull = false;
-        ciph.d->name = descriptionList.at(0);
+        ciph.d->name = descriptionList.at(0).toString();
 
-        QString protoString = descriptionList.at(1);
+        QString protoString = descriptionList.at(1).toString();
         ciph.d->protocolString = protoString;
         ciph.d->protocol = QSsl::UnknownProtocol;
         if (protoString == QLatin1String("SSLv3"))
@@ -247,11 +247,11 @@ QSslCipher QSslSocketBackendPrivate::QSslCipher_from_SSL_CIPHER(SSL_CIPHER *ciph
             ciph.d->protocol = QSsl::TlsV1_2;
 
         if (descriptionList.at(2).startsWith(QLatin1String("Kx=")))
-            ciph.d->keyExchangeMethod = descriptionList.at(2).mid(3);
+            ciph.d->keyExchangeMethod = descriptionList.at(2).mid(3).toString();
         if (descriptionList.at(3).startsWith(QLatin1String("Au=")))
-            ciph.d->authenticationMethod = descriptionList.at(3).mid(3);
+            ciph.d->authenticationMethod = descriptionList.at(3).mid(3).toString();
         if (descriptionList.at(4).startsWith(QLatin1String("Enc=")))
-            ciph.d->encryptionMethod = descriptionList.at(4).mid(4);
+            ciph.d->encryptionMethod = descriptionList.at(4).mid(4).toString();
         ciph.d->exportable = (descriptionList.size() > 6 && descriptionList.at(6) == QLatin1String("export"));
 
         ciph.d->bits = q_SSL_CIPHER_get_bits(cipher, &ciph.d->supportedBits);