Windows code: Fix to prefer ranged-for, as clang-tidy advises

Change-Id: Id9bb21855ae832cdbbc456326226ec72b634672e
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Luca Beldi <v.ronin@yahoo.it>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

src/corelib/io/qsettings_win.cpp

@@ -630,11 +630,9 @@ void QWinSettingsPrivate::remove(const QString &uKey)
         deleteChildGroups(handle, access);
 
         if (rKey.isEmpty()) {
-            QStringList childKeys = childKeysOrGroups(handle, QSettingsPrivate::ChildKeys);
-
-            for (int i = 0; i < childKeys.size(); ++i) {
-                QString group = childKeys.at(i);
+            const QStringList childKeys = childKeysOrGroups(handle, QSettingsPrivate::ChildKeys);
 
+            for (const QString &group : childKeys) {
                 LONG res = RegDeleteValue(handle, reinterpret_cast<const wchar_t *>(group.utf16()));
                 if (res != ERROR_SUCCESS) {
                     qWarning("QSettings: RegDeleteValue failed on subkey \"%s\": %s",
@@ -755,8 +753,8 @@ bool QWinSettingsPrivate::get(const QString &uKey, QVariant *value) const
 {
     QString rKey = escapedKey(uKey);
 
-    for (int i = 0; i < regList.size(); ++i) {
-        HKEY handle = regList.at(i).handle();
+    for (const RegistryKey &r : regList) {
+        HKEY handle = r.handle();
         if (handle != 0 && readKey(handle, rKey, value))
             return true;
 
@@ -772,8 +770,8 @@ QStringList QWinSettingsPrivate::children(const QString &uKey, ChildSpec spec) c
     NameSet result;
     QString rKey = escapedKey(uKey);
 
-    for (int i = 0; i < regList.size(); ++i) {
-        HKEY parent_handle = regList.at(i).handle();
+    for (const RegistryKey &r : regList) {
+        HKEY parent_handle = r.handle();
         if (parent_handle == 0)
             continue;
         HKEY handle = openKey(parent_handle, KEY_READ, rKey, access);

src/corelib/kernel/qeventdispatcher_win.cpp

@@ -894,8 +894,7 @@ QEventDispatcherWin32::registeredTimers(QObject *object) const
 
     Q_D(const QEventDispatcherWin32);
     QList<TimerInfo> list;
-    for (int i = 0; i < d->timerVec.size(); ++i) {
-        const WinTimerInfo *t = d->timerVec.at(i);
+    for (const WinTimerInfo *t : qAsConst(d->timerVec)) {
         if (t && t->obj == object)
             list << TimerInfo(t->timerId, t->interval, t->timerType);
     }
@@ -992,9 +991,7 @@ int QEventDispatcherWin32::remainingTime(int timerId)
 
     quint64 currentTime = qt_msectime();
 
-    WinTimerInfo *t;
-    for (int i=0; i<d->timerVec.size(); i++) {
-        t = d->timerVec.at(i);
+    for (const WinTimerInfo *t : qAsConst(d->timerVec)) {
         if (t && t->timerId == timerId) // timer found, return time to wait
             return t->timeout > currentTime ? t->timeout - currentTime : 0;
     }

src/corelib/thread/qwaitcondition_win.cpp

@@ -223,8 +223,7 @@ void QWaitCondition::wakeOne()
 {
     // wake up the first waiting thread in the queue
     QMutexLocker locker(&d->mtx);
-    for (int i = 0; i < d->queue.size(); ++i) {
-        QWaitConditionEvent *current = d->queue.at(i);
+    for (QWaitConditionEvent *current : qAsConst(d->queue)) {
         if (current->wokenUp)
             continue;
         SetEvent(current->event);
@@ -237,8 +236,7 @@ void QWaitCondition::wakeAll()
 {
     // wake up the all threads in the queue
     QMutexLocker locker(&d->mtx);
-    for (int i = 0; i < d->queue.size(); ++i) {
-        QWaitConditionEvent *current = d->queue.at(i);
+    for (QWaitConditionEvent *current : qAsConst(d->queue)) {
         SetEvent(current->event);
         current->wokenUp = true;
     }

src/corelib/tools/qlocale_win.cpp

@@ -1001,9 +1001,9 @@ LCID qt_inIsoNametoLCID(const char *name)
         ++c;
     }
 
-    for (int i = 0; i < windows_to_iso_count; ++i) {
-        if (!strcmp(n, windows_to_iso_list[i].iso_name))
-            return windows_to_iso_list[i].windows_code;
+    for (const WindowsToISOListElt &i : windows_to_iso_list) {
+        if (!strcmp(n, i.iso_name))
+            return i.windows_code;
     }
     return LOCALE_USER_DEFAULT;
 }

src/platformsupport/fontdatabases/windows/qwindowsfontdatabase.cpp

@@ -1605,7 +1605,7 @@ QStringList QWindowsFontDatabase::addApplicationFont(const QByteArray &fontData,
 
 void QWindowsFontDatabase::removeApplicationFonts()
 {
-    foreach (const WinApplicationFont &font, m_applicationFonts) {
+    for (const WinApplicationFont &font : qAsConst(m_applicationFonts)) {
         if (font.handle) {
             RemoveFontMemResourceEx(font.handle);
         } else {