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>

5 files changed, 17 insertions, 17 deletions

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();
     }
 }