Port from qAsConst() to std::as_const()

We've been requiring C++17 since Qt 6.0, and our qAsConst use finally
starts to bother us (QTBUG-99313), so time to port away from it
now.

Since qAsConst has exactly the same semantics as std::as_const (down
to rvalue treatment, constexpr'ness and noexcept'ness), there's really
nothing more to it than a global search-and-replace, with manual
unstaging of the actual definition and documentation in dist/,
src/corelib/doc/ and src/corelib/global/.

Task-number: QTBUG-99313
Change-Id: I4c7114444a325ad4e62d0fcbfd347d2bbfb21541
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>

25 files changed, 58 insertions, 58 deletions

diff --git a/src/plugins/platforms/android/androidjniclipboard.cpp b/src/plugins/platforms/android/androidjniclipboard.cpp
index 7b2c2c0443..4c5c1946f6 100644
--- a/src/plugins/platforms/android/androidjniclipboard.cpp
+++ b/src/plugins/platforms/android/androidjniclipboard.cpp
@@ -49,7 +49,7 @@ namespace QtAndroidClipboard
         }
         if (data->hasUrls()) {
             QList<QUrl> urls = data->urls();
-            for (const auto &u : qAsConst(urls)) {
+            for (const auto &u : std::as_const(urls)) {
                 QJniObject::callStaticMethod<void>(applicationClass(),
                                                    "setClipboardUri",
                                                    "(Ljava/lang/String;)V",
diff --git a/src/plugins/platforms/android/androidjnimenu.cpp b/src/plugins/platforms/android/androidjnimenu.cpp
index c7c03c6be6..7aaa5d921c 100644
--- a/src/plugins/platforms/android/androidjnimenu.cpp
+++ b/src/plugins/platforms/android/androidjnimenu.cpp
@@ -117,7 +117,7 @@ namespace QtAndroidMenu
 
         visibleMenuBar = 0;
         activeTopLevelWindow = window;
-        for (QAndroidPlatformMenuBar *menuBar : qAsConst(menuBars)) {
+        for (QAndroidPlatformMenuBar *menuBar : std::as_const(menuBars)) {
             if (menuBar->parentWindow() == window) {
                 visibleMenuBar = menuBar;
                 resetMenuBar();
@@ -318,7 +318,7 @@ namespace QtAndroidMenu
                 item->activated();
                 visibleMenu->aboutToHide();
                 visibleMenu = 0;
-                for (QAndroidPlatformMenu *menu : qAsConst(pendingContextMenus)) {
+                for (QAndroidPlatformMenu *menu : std::as_const(pendingContextMenus)) {
                     if (menu->isVisible())
                         menu->aboutToHide();
                 }
diff --git a/src/plugins/platforms/android/qandroideventdispatcher.cpp b/src/plugins/platforms/android/qandroideventdispatcher.cpp
index e379dbcca9..8d1a085844 100644
--- a/src/plugins/platforms/android/qandroideventdispatcher.cpp
+++ b/src/plugins/platforms/android/qandroideventdispatcher.cpp
@@ -75,7 +75,7 @@ void QAndroidEventDispatcherStopper::startAll()
     if (!m_started.testAndSetOrdered(0, 1))
         return;
 
-    for (QAndroidEventDispatcher *d : qAsConst(m_dispatchers))
+    for (QAndroidEventDispatcher *d : std::as_const(m_dispatchers))
         d->start();
 }
 
@@ -85,7 +85,7 @@ void QAndroidEventDispatcherStopper::stopAll()
     if (!m_started.testAndSetOrdered(1, 0))
         return;
 
-    for (QAndroidEventDispatcher *d : qAsConst(m_dispatchers))
+    for (QAndroidEventDispatcher *d : std::as_const(m_dispatchers))
         d->stop();
 }
 
@@ -104,6 +104,6 @@ void QAndroidEventDispatcherStopper::removeEventDispatcher(QAndroidEventDispatch
 void QAndroidEventDispatcherStopper::goingToStop(bool stop)
 {
     QMutexLocker lock(&m_mutex);
-    for (QAndroidEventDispatcher *d : qAsConst(m_dispatchers))
+    for (QAndroidEventDispatcher *d : std::as_const(m_dispatchers))
         d->goingToStop(stop);
 }
diff --git a/src/plugins/platforms/android/qandroidplatformscreen.cpp b/src/plugins/platforms/android/qandroidplatformscreen.cpp
index d11b7b197b..d2bb9f09f1 100644
--- a/src/plugins/platforms/android/qandroidplatformscreen.cpp
+++ b/src/plugins/platforms/android/qandroidplatformscreen.cpp
@@ -312,7 +312,7 @@ void QAndroidPlatformScreen::setAvailableGeometry(const QRect &rect)
 
 void QAndroidPlatformScreen::applicationStateChanged(Qt::ApplicationState state)
 {
-    for (QAndroidPlatformWindow *w : qAsConst(m_windowStack))
+    for (QAndroidPlatformWindow *w : std::as_const(m_windowStack))
         w->applicationStateChanged(state);
 
     if (state <=  Qt::ApplicationHidden) {
@@ -353,7 +353,7 @@ void QAndroidPlatformScreen::doRedraw(QImage* screenGrabImage)
     // windows that have renderToTexture children (i.e. they need the OpenGL path) then
     // we do not need an overlay surface.
     bool hasVisibleRasterWindows = false;
-    for (QAndroidPlatformWindow *window : qAsConst(m_windowStack)) {
+    for (QAndroidPlatformWindow *window : std::as_const(m_windowStack)) {
         if (window->window()->isVisible() && window->isRaster() && !qt_window_private(window->window())->compositing) {
             hasVisibleRasterWindows = true;
             break;
@@ -408,7 +408,7 @@ void QAndroidPlatformScreen::doRedraw(QImage* screenGrabImage)
     compositePainter.setCompositionMode(QPainter::CompositionMode_Source);
 
     QRegion visibleRegion(m_dirtyRect);
-    for (QAndroidPlatformWindow *window : qAsConst(m_windowStack)) {
+    for (QAndroidPlatformWindow *window : std::as_const(m_windowStack)) {
         if (!window->window()->isVisible()
                 || qt_window_private(window->window())->compositing
                 || !window->isRaster())
diff --git a/src/plugins/platforms/bsdfb/qbsdfbscreen.cpp b/src/plugins/platforms/bsdfb/qbsdfbscreen.cpp
index 564e670290..31f8dab091 100644
--- a/src/plugins/platforms/bsdfb/qbsdfbscreen.cpp
+++ b/src/plugins/platforms/bsdfb/qbsdfbscreen.cpp
@@ -128,7 +128,7 @@ bool QBsdFbScreen::initialize()
     QRect userGeometry;
 
     // Parse arguments
-    for (const QString &arg : qAsConst(m_arguments)) {
+    for (const QString &arg : std::as_const(m_arguments)) {
         QRegularExpressionMatch match;
         if (arg.contains(mmSizeRx, &match))
             userMmSize = QSize(match.captured(1).toInt(), match.captured(2).toInt());
diff --git a/src/plugins/platforms/cocoa/qcocoamenu.mm b/src/plugins/platforms/cocoa/qcocoamenu.mm
index 21fae6de6f..b8f9a1aa8c 100644
--- a/src/plugins/platforms/cocoa/qcocoamenu.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenu.mm
@@ -37,7 +37,7 @@ QCocoaMenu::QCocoaMenu() :
 
 QCocoaMenu::~QCocoaMenu()
 {
-    for (auto *item : qAsConst(m_menuItems)) {
+    for (auto *item : std::as_const(m_menuItems)) {
         if (item->menuParent() == this)
             item->setMenuParent(nullptr);
     }
@@ -286,7 +286,7 @@ void QCocoaMenu::syncSeparatorsCollapsible(bool enable)
         if (lastVisibleItem && lastVisibleItem.separatorItem)
             lastVisibleItem.hidden = YES;
     } else {
-        for (auto *item : qAsConst(m_menuItems)) {
+        for (auto *item : std::as_const(m_menuItems)) {
             if (!item->isSeparator())
                 continue;
 
@@ -425,7 +425,7 @@ QPlatformMenuItem *QCocoaMenu::menuItemAt(int position) const
 
 QPlatformMenuItem *QCocoaMenu::menuItemForTag(quintptr tag) const
 {
-    for (auto *item : qAsConst(m_menuItems)) {
+    for (auto *item : std::as_const(m_menuItems)) {
         if (item->tag() ==  tag)
             return item;
     }
@@ -441,7 +441,7 @@ QList<QCocoaMenuItem *> QCocoaMenu::items() const
 QList<QCocoaMenuItem *> QCocoaMenu::merged() const
 {
     QList<QCocoaMenuItem *> result;
-    for (auto *item : qAsConst(m_menuItems)) {
+    for (auto *item : std::as_const(m_menuItems)) {
         if (item->menu()) { // recurse into submenus
             result.append(item->menu()->merged());
             continue;
@@ -462,7 +462,7 @@ void QCocoaMenu::propagateEnabledState(bool enabled)
     if (!m_enabled && enabled) // Some ancestor was enabled, but this menu is not
         return;
 
-    for (auto *item : qAsConst(m_menuItems)) {
+    for (auto *item : std::as_const(m_menuItems)) {
         if (QCocoaMenu *menu = item->menu())
             menu->propagateEnabledState(enabled);
         else
diff --git a/src/plugins/platforms/cocoa/qcocoamenubar.mm b/src/plugins/platforms/cocoa/qcocoamenubar.mm
index 7950fc3d66..60a25e732f 100644
--- a/src/plugins/platforms/cocoa/qcocoamenubar.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenubar.mm
@@ -40,7 +40,7 @@ QCocoaMenuBar::~QCocoaMenuBar()
 #ifdef QT_COCOA_ENABLE_MENU_DEBUG
     qDebug() << "~QCocoaMenuBar" << this;
 #endif
-    for (auto menu : qAsConst(m_menus)) {
+    for (auto menu : std::as_const(m_menus)) {
         if (!menu)
             continue;
         NSMenuItem *item = nativeItemForMenu(menu);
@@ -241,7 +241,7 @@ QCocoaWindow *QCocoaMenuBar::findWindowForMenubar()
 
 QCocoaMenuBar *QCocoaMenuBar::findGlobalMenubar()
 {
-    for (auto *menubar : qAsConst(static_menubars)) {
+    for (auto *menubar : std::as_const(static_menubars)) {
         if (menubar->m_window.isNull())
             return menubar;
     }
@@ -282,7 +282,7 @@ void QCocoaMenuBar::updateMenuBarImmediately()
 #endif
     bool disableForModal = mb->shouldDisable(cw);
 
-    for (auto menu : qAsConst(mb->m_menus)) {
+    for (auto menu : std::as_const(mb->m_menus)) {
         if (!menu)
             continue;
         NSMenuItem *item = mb->nativeItemForMenu(menu);
@@ -345,7 +345,7 @@ void QCocoaMenuBar::insertWindowMenu()
 QList<QCocoaMenuItem*> QCocoaMenuBar::merged() const
 {
     QList<QCocoaMenuItem*> r;
-    for (auto menu : qAsConst(m_menus))
+    for (auto menu : std::as_const(m_menus))
         r.append(menu->merged());
 
     return r;
@@ -365,10 +365,10 @@ bool QCocoaMenuBar::shouldDisable(QCocoaWindow *active) const
     // When there is an application modal window on screen, the entries of
     // the menubar should be disabled. The exception in Qt is that if the
     // modal window is the only window on screen, then we enable the menu bar.
-    for (auto *window : qAsConst(topWindows)) {
+    for (auto *window : std::as_const(topWindows)) {
         if (window->isVisible() && window->modality() == Qt::ApplicationModal) {
             // check for other visible windows
-            for (auto *other : qAsConst(topWindows)) {
+            for (auto *other : std::as_const(topWindows)) {
                 if ((window != other) && (other->isVisible())) {
                     // INVARIANT: we found another visible window
                     // on screen other than our modalWidget. We therefore
@@ -389,7 +389,7 @@ bool QCocoaMenuBar::shouldDisable(QCocoaWindow *active) const
 
 QPlatformMenu *QCocoaMenuBar::menuForTag(quintptr tag) const
 {
-    for (auto menu : qAsConst(m_menus))
+    for (auto menu : std::as_const(m_menus))
         if (menu->tag() ==  tag)
             return menu;
 
@@ -398,7 +398,7 @@ QPlatformMenu *QCocoaMenuBar::menuForTag(quintptr tag) const
 
 NSMenuItem *QCocoaMenuBar::itemForRole(QPlatformMenuItem::MenuRole role)
 {
-    for (auto menu : qAsConst(m_menus))
+    for (auto menu : std::as_const(m_menus))
         for (auto *item : menu->items())
             if (item->effectiveRole() == role)
                 return item->nsItem();
@@ -419,7 +419,7 @@ void QCocoaMenuBar::insertDefaultEditItems(QCocoaMenu *menu)
     NSMenu *nsEditMenu = menu->nsMenu();
     if ([nsEditMenu itemAtIndex:nsEditMenu.numberOfItems - 1].action
         == @selector(orderFrontCharacterPalette:)) {
-        for (auto defaultEditMenuItem : qAsConst(m_defaultEditMenuItems)) {
+        for (auto defaultEditMenuItem : std::as_const(m_defaultEditMenuItems)) {
             if (menu->items().contains(defaultEditMenuItem))
                 menu->removeMenuItem(defaultEditMenuItem);
         }
@@ -445,7 +445,7 @@ void QCocoaMenuBar::insertDefaultEditItems(QCocoaMenu *menu)
 
             m_defaultEditMenuItems << separator << dictationItem << emojiItem;
         }
-        for (auto defaultEditMenuItem : qAsConst(m_defaultEditMenuItems)) {
+        for (auto defaultEditMenuItem : std::as_const(m_defaultEditMenuItems)) {
             if (menu->items().contains(defaultEditMenuItem))
                 menu->removeMenuItem(defaultEditMenuItem);
             menu->insertMenuItem(defaultEditMenuItem, nullptr);
diff --git a/src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp b/src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp
index bed06dc62d..bc304f78be 100644
--- a/src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp
+++ b/src/plugins/platforms/direct2d/qwindowsdirect2dpaintengine.cpp
@@ -1651,7 +1651,7 @@ void QWindowsDirect2DPaintEngine::rasterFill(const QVectorPath &path, const QBru
         p.setPen(state()->pen);
 
         auto *extended = static_cast<QPaintEngineEx *>(engine);
-        for (const QPainterClipInfo &info : qAsConst(state()->clipInfo)) {
+        for (const QPainterClipInfo &info : std::as_const(state()->clipInfo)) {
             extended->state()->matrix = info.matrix;
             extended->transformChanged();
 
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmscreen.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmscreen.cpp
index 5ac28315ff..dedb898b80 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmscreen.cpp
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms/qeglfskmsgbmscreen.cpp
@@ -410,7 +410,7 @@ void QEglFSKmsGbmScreen::updateFlipStatus()
     if (m_flipPending)
         return;
 
-    for (const CloneDestination &d : qAsConst(m_cloneDests)) {
+    for (const CloneDestination &d : std::as_const(m_cloneDests)) {
         if (d.cloneFlipPending)
             return;
     }
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmsscreen.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmsscreen.cpp
index cc52d371e3..369356b761 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmsscreen.cpp
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_support/qeglfskmsscreen.cpp
@@ -185,7 +185,7 @@ QList<QPlatformScreen::Mode> QEglFSKmsScreen::modes() const
     QList<QPlatformScreen::Mode> list;
     list.reserve(m_output.modes.size());
 
-    for (const drmModeModeInfo &info : qAsConst(m_output.modes))
+    for (const drmModeModeInfo &info : std::as_const(m_output.modes))
         list.append({QSize(info.hdisplay, info.vdisplay),
                      qreal(info.vrefresh > 0 ? info.vrefresh : 60)});
 
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_vsp2/qvsp2blendingdevice.cpp b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_vsp2/qvsp2blendingdevice.cpp
index 40cdd78e56..e7e3c76190 100644
--- a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_vsp2/qvsp2blendingdevice.cpp
+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_vsp2/qvsp2blendingdevice.cpp
@@ -205,7 +205,7 @@ bool QVsp2BlendingDevice::blend(int outputDmabufFd)
 
     if (queueingFailed) {
         qWarning() << "Vsp2: Trying to clean up queued buffers";
-        for (auto &input : qAsConst(m_inputs)) {
+        for (auto &input : std::as_const(m_inputs)) {
             if (input.enabled) {
                 if (!input.rpfInput->clearBuffers())
                     qWarning() << "Vsp2: Failed to remove buffers after an aborted blend";
@@ -248,7 +248,7 @@ int QVsp2BlendingDevice::numInputs() const
 bool QVsp2BlendingDevice::hasContinuousLayers() const
 {
     bool seenDisabled = false;
-    for (auto &input : qAsConst(m_inputs)) {
+    for (auto &input : std::as_const(m_inputs)) {
         if (seenDisabled && input.enabled)
             return false;
         seenDisabled |= !input.enabled;
diff --git a/src/plugins/platforms/linuxfb/qlinuxfbdrmscreen.cpp b/src/plugins/platforms/linuxfb/qlinuxfbdrmscreen.cpp
index 076cf49ba7..9cb232e13d 100644
--- a/src/plugins/platforms/linuxfb/qlinuxfbdrmscreen.cpp
+++ b/src/plugins/platforms/linuxfb/qlinuxfbdrmscreen.cpp
@@ -408,7 +408,7 @@ QRegion QLinuxFbDrmScreen::doRedraw()
     // Image has alpha but no need for blending at this stage.
     // Do not waste time with the default SourceOver.
     pntr.setCompositionMode(QPainter::CompositionMode_Source);
-    for (const QRect &rect : qAsConst(output->dirty[output->backFb]))
+    for (const QRect &rect : std::as_const(output->dirty[output->backFb]))
         pntr.drawImage(rect, mScreenImage, rect);
     pntr.end();
 
diff --git a/src/plugins/platforms/linuxfb/qlinuxfbscreen.cpp b/src/plugins/platforms/linuxfb/qlinuxfbscreen.cpp
index 24cab2ee23..e2826f3946 100644
--- a/src/plugins/platforms/linuxfb/qlinuxfbscreen.cpp
+++ b/src/plugins/platforms/linuxfb/qlinuxfbscreen.cpp
@@ -286,7 +286,7 @@ bool QLinuxFbScreen::initialize()
     bool doSwitchToGraphicsMode = true;
 
     // Parse arguments
-    for (const QString &arg : qAsConst(mArgs)) {
+    for (const QString &arg : std::as_const(mArgs)) {
         QRegularExpressionMatch match;
         if (arg == "nographicsmodeswitch"_L1)
             doSwitchToGraphicsMode = false;
diff --git a/src/plugins/platforms/offscreen/qoffscreencommon.cpp b/src/plugins/platforms/offscreen/qoffscreencommon.cpp
index 9152795e9f..923fffb29c 100644
--- a/src/plugins/platforms/offscreen/qoffscreencommon.cpp
+++ b/src/plugins/platforms/offscreen/qoffscreencommon.cpp
@@ -195,7 +195,7 @@ QOffscreenBackingStore *QOffscreenBackingStore::backingStoreForWinId(WId id)
 void QOffscreenBackingStore::clearHash()
 {
     for (auto it = m_windowAreaHash.cbegin(), end = m_windowAreaHash.cend(); it != end; ++it) {
-        const auto it2 = qAsConst(m_backingStoreForWinIdHash).find(it.key());
+        const auto it2 = std::as_const(m_backingStoreForWinIdHash).find(it.key());
         if (it2.value() == this)
             m_backingStoreForWinIdHash.erase(it2);
     }
diff --git a/src/plugins/platforms/qnx/qqnxintegration.cpp b/src/plugins/platforms/qnx/qqnxintegration.cpp
index ed9ad6ccbc..ff6ce05aaa 100644
--- a/src/plugins/platforms/qnx/qqnxintegration.cpp
+++ b/src/plugins/platforms/qnx/qqnxintegration.cpp
@@ -571,7 +571,7 @@ QList<screen_display_t *> QQnxIntegration::sortDisplays(screen_display_t *availa
 
     // Go through all the requested displays IDs
     QList<screen_display_t *> orderedDisplays;
-    for (const QJsonValue &value : qAsConst(requestedDisplays)) {
+    for (const QJsonValue &value : std::as_const(requestedDisplays)) {
         int requestedValue = value.toInt();
 
         // Move all displays with matching ID from the intermediate list
diff --git a/src/plugins/platforms/vnc/qvnc.cpp b/src/plugins/platforms/vnc/qvnc.cpp
index ee68bee6e3..99e80e5801 100644
--- a/src/plugins/platforms/vnc/qvnc.cpp
+++ b/src/plugins/platforms/vnc/qvnc.cpp
@@ -567,7 +567,7 @@ void QVncClientCursor::changeCursor(QCursor *widgetCursor, QWindow *window)
         cursor = *platformImage.image();
         hotspot = platformImage.hotspot();
     }
-    for (auto client : qAsConst(clients))
+    for (auto client : std::as_const(clients))
         client->setDirtyCursor();
 }
 
@@ -613,7 +613,7 @@ QVncServer::~QVncServer()
 
 void QVncServer::setDirty()
 {
-    for (auto client : qAsConst(clients))
+    for (auto client : std::as_const(clients))
         client->setDirty(qvnc_screen->dirtyRegion);
 
     qvnc_screen->clearDirty();
diff --git a/src/plugins/platforms/vnc/qvncscreen.cpp b/src/plugins/platforms/vnc/qvncscreen.cpp
index c67e5a0073..c87df20ef6 100644
--- a/src/plugins/platforms/vnc/qvncscreen.cpp
+++ b/src/plugins/platforms/vnc/qvncscreen.cpp
@@ -41,7 +41,7 @@ bool QVncScreen::initialize()
     mDepth = 32;
     mPhysicalSize = QSizeF(mGeometry.width()/96.*25.4, mGeometry.height()/96.*25.4);
 
-    for (const QString &arg : qAsConst(mArgs)) {
+    for (const QString &arg : std::as_const(mArgs)) {
         QRegularExpressionMatch match;
         if (arg.contains(mmSizeRx, &match)) {
             mPhysicalSize = QSizeF(match.captured("width").toDouble(), match.captured("height").toDouble());
diff --git a/src/plugins/platforms/windows/qwindowscontext.cpp b/src/plugins/platforms/windows/qwindowscontext.cpp
index c95f2ef272..fd3cd94a13 100644
--- a/src/plugins/platforms/windows/qwindowscontext.cpp
+++ b/src/plugins/platforms/windows/qwindowscontext.cpp
@@ -264,7 +264,7 @@ void QWindowsContext::registerTouchWindows()
 {
     if (QGuiApplicationPrivate::is_app_running
         && (d->m_systemInfo & QWindowsContext::SI_SupportsTouch) != 0) {
-        for (QWindowsWindow *w : qAsConst(d->m_windows))
+        for (QWindowsWindow *w : std::as_const(d->m_windows))
             w->registerTouchWindow();
     }
 }
@@ -601,7 +601,7 @@ void QWindowsContext::unregisterWindowClasses()
 {
     const auto appInstance = static_cast<HINSTANCE>(GetModuleHandle(nullptr));
 
-    for (const QString &name : qAsConst(d->m_registeredWindowClassNames)) {
+    for (const QString &name : std::as_const(d->m_registeredWindowClassNames)) {
         if (!UnregisterClass(reinterpret_cast<LPCWSTR>(name.utf16()), appInstance) && QWindowsContext::verbose)
             qErrnoWarning("UnregisterClass failed for '%s'", qPrintable(name));
     }
diff --git a/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp b/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
index d851964b9d..ef278aa2fd 100644
--- a/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
+++ b/src/plugins/platforms/windows/qwindowsdialoghelpers.cpp
@@ -1355,7 +1355,7 @@ Q_GLOBAL_STATIC(QStringList, temporaryItemCopies)
 
 static void cleanupTemporaryItemCopies()
 {
-    for (const QString &file : qAsConst(*temporaryItemCopies()))
+    for (const QString &file : std::as_const(*temporaryItemCopies()))
         QFile::remove(file);
 }
 
diff --git a/src/plugins/platforms/windows/qwindowspointerhandler.cpp b/src/plugins/platforms/windows/qwindowspointerhandler.cpp
index 4aa5246a00..488d5f89b5 100644
--- a/src/plugins/platforms/windows/qwindowspointerhandler.cpp
+++ b/src/plugins/platforms/windows/qwindowspointerhandler.cpp
@@ -524,7 +524,7 @@ bool QWindowsPointerHandler::translateTouchEvent(QWindow *window, HWND hwnd,
 
     // Some devices send touches for each finger in a different message/frame, instead of consolidating
     // them in the same frame as we were expecting. We account for missing unreleased touches here.
-    for (auto tp : qAsConst(m_lastTouchPoints)) {
+    for (auto tp : std::as_const(m_lastTouchPoints)) {
         if (!inputIds.contains(tp.id)) {
             tp.state = QEventPoint::State::Stationary;
             allStates |= tp.state;
diff --git a/src/plugins/platforms/xcb/qxcbconnection.cpp b/src/plugins/platforms/xcb/qxcbconnection.cpp
index 395e1b0586..48b5dc90ee 100644
--- a/src/plugins/platforms/xcb/qxcbconnection.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection.cpp
@@ -713,7 +713,7 @@ void QXcbConnection::handleXcbEvent(xcb_generic_event_t *event)
 #ifndef QT_NO_CLIPBOARD
         m_clipboard->handleXFixesSelectionRequest(notify_event);
 #endif
-        for (QXcbVirtualDesktop *virtualDesktop : qAsConst(m_virtualDesktops))
+        for (QXcbVirtualDesktop *virtualDesktop : std::as_const(m_virtualDesktops))
             virtualDesktop->handleXFixesSelectionNotify(notify_event);
     } else if (isXRandrType(response_type, XCB_RANDR_NOTIFY)) {
         if (!isAtLeastXRandR15())
diff --git a/src/plugins/platforms/xcb/qxcbconnection_screens.cpp b/src/plugins/platforms/xcb/qxcbconnection_screens.cpp
index 2d62b9e99b..4c1b22e230 100644
--- a/src/plugins/platforms/xcb/qxcbconnection_screens.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection_screens.cpp
@@ -155,7 +155,7 @@ void QXcbConnection::updateScreens(const xcb_randr_notify_event_t *event)
             }
         }
 
-        qCDebug(lcQpaScreen) << "updateScreens: primary output is" << qAsConst(m_screens).first()->name();
+        qCDebug(lcQpaScreen) << "updateScreens: primary output is" << std::as_const(m_screens).first()->name();
     }
 }
 
@@ -184,7 +184,7 @@ void QXcbConnection::updateScreen(QXcbScreen *screen, const xcb_randr_output_cha
             // If the screen became primary, reshuffle the order in QGuiApplicationPrivate
             const int idx = m_screens.indexOf(screen);
             if (idx > 0) {
-                qAsConst(m_screens).first()->setPrimary(false);
+                std::as_const(m_screens).first()->setPrimary(false);
                 m_screens.swapItemsAt(0, idx);
             }
             screen->virtualDesktop()->setPrimaryScreen(screen);
@@ -204,7 +204,7 @@ QXcbScreen *QXcbConnection::createScreen(QXcbVirtualDesktop *virtualDesktop,
 
     if (screen->isPrimary()) {
         if (!m_screens.isEmpty())
-            qAsConst(m_screens).first()->setPrimary(false);
+            std::as_const(m_screens).first()->setPrimary(false);
 
         m_screens.prepend(screen);
     } else {
@@ -253,7 +253,7 @@ void QXcbConnection::updateScreen_monitor(QXcbScreen *screen, xcb_randr_monitor_
     if (screen->isPrimary()) {
         const int idx = m_screens.indexOf(screen);
         if (idx > 0) {
-            qAsConst(m_screens).first()->setPrimary(false);
+            std::as_const(m_screens).first()->setPrimary(false);
             m_screens.swapItemsAt(0, idx);
         }
         screen->virtualDesktop()->setPrimaryScreen(screen);
@@ -268,7 +268,7 @@ QXcbScreen *QXcbConnection::createScreen_monitor(QXcbVirtualDesktop *virtualDesk
 
     if (screen->isPrimary()) {
         if (!m_screens.isEmpty())
-            qAsConst(m_screens).first()->setPrimary(false);
+            std::as_const(m_screens).first()->setPrimary(false);
 
         m_screens.prepend(screen);
     } else {
@@ -326,7 +326,7 @@ void QXcbConnection::initializeScreens(bool initialized)
         ++xcbScreenNumber;
     }
 
-    for (QXcbVirtualDesktop *virtualDesktop : qAsConst(m_virtualDesktops))
+    for (QXcbVirtualDesktop *virtualDesktop : std::as_const(m_virtualDesktops))
         virtualDesktop->subscribeToXFixesSelectionNotify();
 
     if (m_virtualDesktops.isEmpty()) {
@@ -334,7 +334,7 @@ void QXcbConnection::initializeScreens(bool initialized)
     } else {
         // Ensure the primary screen is first on the list
         if (primaryScreen) {
-            if (qAsConst(m_screens).first() != primaryScreen) {
+            if (std::as_const(m_screens).first() != primaryScreen) {
                 m_screens.removeOne(primaryScreen);
                 m_screens.prepend(primaryScreen);
             }
@@ -342,14 +342,14 @@ void QXcbConnection::initializeScreens(bool initialized)
 
         // Push the screens to QGuiApplication
         if (!initialized) {
-            for (QXcbScreen *screen : qAsConst(m_screens)) {
+            for (QXcbScreen *screen : std::as_const(m_screens)) {
                 qCDebug(lcQpaScreen) << "adding" << screen << "(Primary:" << screen->isPrimary() << ")";
                 QWindowSystemInterface::handleScreenAdded(screen, screen->isPrimary());
             }
         }
 
         if (!m_screens.isEmpty())
-            qCDebug(lcQpaScreen) << "initializeScreens: primary output is" << qAsConst(m_screens).first()->name();
+            qCDebug(lcQpaScreen) << "initializeScreens: primary output is" << std::as_const(m_screens).first()->name();
     }
 }
 
diff --git a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
index 6f732b57a0..03e758bf85 100644
--- a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
@@ -792,7 +792,7 @@ void QXcbConnection::xi2ProcessTouch(void *xiDevEvent, QXcbWindow *platformWindo
     qreal nx = -1.0, ny = -1.0;
     qreal w = 0.0, h = 0.0;
     bool majorAxisIsY = touchPoint.area.height() > touchPoint.area.width();
-    for (const TouchDeviceData::ValuatorClassInfo &vci : qAsConst(dev->valuatorInfo)) {
+    for (const TouchDeviceData::ValuatorClassInfo &vci : std::as_const(dev->valuatorInfo)) {
         double value;
         if (!xi2GetValuatorValueIfSet(xiDeviceEvent, vci.number, &value))
             continue;
@@ -1023,7 +1023,7 @@ bool QXcbConnection::xi2SetMouseGrabEnabled(xcb_window_t w, bool grab)
         }
 #endif // QT_CONFIG(gestures) && QT_XCB_HAS_TOUCHPAD_GESTURES
 
-        for (int id : qAsConst(m_xiMasterPointerIds)) {
+        for (int id : std::as_const(m_xiMasterPointerIds)) {
             xcb_generic_error_t *error = nullptr;
             auto cookie = xcb_input_xi_grab_device(xcb_connection(), w, XCB_CURRENT_TIME, XCB_CURSOR_NONE, id,
                                                    XCB_INPUT_GRAB_MODE_22_ASYNC, XCB_INPUT_GRAB_MODE_22_ASYNC,
@@ -1041,7 +1041,7 @@ bool QXcbConnection::xi2SetMouseGrabEnabled(xcb_window_t w, bool grab)
             free(reply);
         }
     } else { // ungrab
-        for (int id : qAsConst(m_xiMasterPointerIds)) {
+        for (int id : std::as_const(m_xiMasterPointerIds)) {
             auto cookie = xcb_input_xi_ungrab_device_checked(xcb_connection(), XCB_CURRENT_TIME, id);
             xcb_generic_error_t *error = xcb_request_check(xcb_connection(), cookie);
             if (error) {
diff --git a/src/plugins/platforms/xcb/qxcbcursor.cpp b/src/plugins/platforms/xcb/qxcbcursor.cpp
index 7db1ee1c1b..6e847ceeec 100644
--- a/src/plugins/platforms/xcb/qxcbcursor.cpp
+++ b/src/plugins/platforms/xcb/qxcbcursor.cpp
@@ -280,7 +280,7 @@ QXcbCursor::~QXcbCursor()
         xcb_close_font(conn, cursorFont);
 
 #ifndef QT_NO_CURSOR
-    for (xcb_cursor_t cursor : qAsConst(m_cursorHash))
+    for (xcb_cursor_t cursor : std::as_const(m_cursorHash))
         xcb_free_cursor(conn, cursor);
 #endif
 
diff --git a/src/plugins/platforms/xcb/qxcbscreen.cpp b/src/plugins/platforms/xcb/qxcbscreen.cpp
index 30746148bc..1192af1469 100644
--- a/src/plugins/platforms/xcb/qxcbscreen.cpp
+++ b/src/plugins/platforms/xcb/qxcbscreen.cpp
@@ -92,7 +92,7 @@ QXcbVirtualDesktop::~QXcbVirtualDesktop()
 {
     delete m_xSettings;
 
-    for (auto cmap : qAsConst(m_visualColormaps))
+    for (auto cmap : std::as_const(m_visualColormaps))
         xcb_free_colormap(xcb_connection(), cmap);
 }
 
@@ -222,7 +222,7 @@ void QXcbVirtualDesktop::handleScreenChange(xcb_randr_screen_change_notify_event
     case XCB_RANDR_ROTATION_REFLECT_Y: break;
     }
 
-    for (QPlatformScreen *platformScreen : qAsConst(m_screens)) {
+    for (QPlatformScreen *platformScreen : std::as_const(m_screens)) {
         QDpi ldpi = platformScreen->logicalDpi();
         QWindowSystemInterface::handleScreenLogicalDotsPerInchChange(platformScreen->screen(), ldpi.first, ldpi.second);
     }
@@ -271,7 +271,7 @@ void QXcbVirtualDesktop::updateWorkArea()
     QRect workArea = getWorkArea();
     if (m_workArea != workArea) {
         m_workArea = workArea;
-        for (QPlatformScreen *screen : qAsConst(m_screens))
+        for (QPlatformScreen *screen : std::as_const(m_screens))
             ((QXcbScreen *)screen)->updateAvailableGeometry();
     }
 }