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>

17 files changed, 29 insertions, 29 deletions

diff --git a/examples/widgets/dialogs/standarddialogs/dialog.cpp b/examples/widgets/dialogs/standarddialogs/dialog.cpp
index 1775a4231a..443101e421 100644
--- a/examples/widgets/dialogs/standarddialogs/dialog.cpp
+++ b/examples/widgets/dialogs/standarddialogs/dialog.cpp
@@ -52,7 +52,7 @@ void DialogOptionsWidget::addSpacer()
 int DialogOptionsWidget::value() const
 {
     int result = 0;
-    for (const CheckBoxEntry &checkboxEntry : qAsConst(checkBoxEntries)) {
+    for (const CheckBoxEntry &checkboxEntry : std::as_const(checkBoxEntries)) {
         if (checkboxEntry.first->isChecked())
             result |= checkboxEntry.second;
     }
diff --git a/examples/widgets/graphicsview/diagramscene/diagramitem.cpp b/examples/widgets/graphicsview/diagramscene/diagramitem.cpp
index fe9e7584e3..82b832837b 100644
--- a/examples/widgets/graphicsview/diagramscene/diagramitem.cpp
+++ b/examples/widgets/graphicsview/diagramscene/diagramitem.cpp
@@ -105,7 +105,7 @@ void DiagramItem::contextMenuEvent(QGraphicsSceneContextMenuEvent *event)
 QVariant DiagramItem::itemChange(GraphicsItemChange change, const QVariant &value)
 {
     if (change == QGraphicsItem::ItemPositionChange) {
-        for (Arrow *arrow : qAsConst(arrows))
+        for (Arrow *arrow : std::as_const(arrows))
             arrow->updatePosition();
     }
 
diff --git a/examples/widgets/graphicsview/diagramscene/mainwindow.cpp b/examples/widgets/graphicsview/diagramscene/mainwindow.cpp
index dc77b500cb..d6a389af38 100644
--- a/examples/widgets/graphicsview/diagramscene/mainwindow.cpp
+++ b/examples/widgets/graphicsview/diagramscene/mainwindow.cpp
@@ -87,7 +87,7 @@ void MainWindow::buttonGroupClicked(QAbstractButton *button)
 void MainWindow::deleteItem()
 {
     QList<QGraphicsItem *> selectedItems = scene->selectedItems();
-    for (QGraphicsItem *item : qAsConst(selectedItems)) {
+    for (QGraphicsItem *item : std::as_const(selectedItems)) {
         if (item->type() == Arrow::Type) {
             scene->removeItem(item);
             Arrow *arrow = qgraphicsitem_cast<Arrow *>(item);
@@ -98,7 +98,7 @@ void MainWindow::deleteItem()
     }
 
     selectedItems = scene->selectedItems();
-    for (QGraphicsItem *item : qAsConst(selectedItems)) {
+    for (QGraphicsItem *item : std::as_const(selectedItems)) {
          if (item->type() == DiagramItem::Type)
              qgraphicsitem_cast<DiagramItem *>(item)->removeArrows();
          scene->removeItem(item);
diff --git a/examples/widgets/graphicsview/elasticnodes/graphwidget.cpp b/examples/widgets/graphicsview/elasticnodes/graphwidget.cpp
index 3d8ca8e972..ede3d23137 100644
--- a/examples/widgets/graphicsview/elasticnodes/graphwidget.cpp
+++ b/examples/widgets/graphicsview/elasticnodes/graphwidget.cpp
@@ -123,11 +123,11 @@ void GraphWidget::timerEvent(QTimerEvent *event)
             nodes << node;
     }
 
-    for (Node *node : qAsConst(nodes))
+    for (Node *node : std::as_const(nodes))
         node->calculateForces();
 
     bool itemsMoved = false;
-    for (Node *node : qAsConst(nodes)) {
+    for (Node *node : std::as_const(nodes)) {
         if (node->advancePosition())
             itemsMoved = true;
     }
diff --git a/examples/widgets/graphicsview/elasticnodes/node.cpp b/examples/widgets/graphicsview/elasticnodes/node.cpp
index fd8df0b32b..eb102f0aa4 100644
--- a/examples/widgets/graphicsview/elasticnodes/node.cpp
+++ b/examples/widgets/graphicsview/elasticnodes/node.cpp
@@ -67,7 +67,7 @@ void Node::calculateForces()
 //! [4]
     // Now subtract all forces pulling items together
     double weight = (edgeList.size() + 1) * 10;
-    for (const Edge *edge : qAsConst(edgeList)) {
+    for (const Edge *edge : std::as_const(edgeList)) {
         QPointF vec;
         if (edge->sourceNode() == this)
             vec = mapToItem(edge->destNode(), 0, 0);
@@ -148,7 +148,7 @@ QVariant Node::itemChange(GraphicsItemChange change, const QVariant &value)
 {
     switch (change) {
     case ItemPositionHasChanged:
-        for (Edge *edge : qAsConst(edgeList))
+        for (Edge *edge : std::as_const(edgeList))
             edge->adjust();
         graph->itemMoved();
         break;
diff --git a/examples/widgets/graphicsview/flowlayout/flowlayout.cpp b/examples/widgets/graphicsview/flowlayout/flowlayout.cpp
index 1f9fb25e75..ab5f4717b3 100644
--- a/examples/widgets/graphicsview/flowlayout/flowlayout.cpp
+++ b/examples/widgets/graphicsview/flowlayout/flowlayout.cpp
@@ -102,7 +102,7 @@ QSizeF FlowLayout::minSize(const QSizeF &constraint) const
     } else if (constraint.height() >= 0) {  // width for height?
         // not supported
     } else {
-        for (const QGraphicsLayoutItem *item : qAsConst(m_items))
+        for (const QGraphicsLayoutItem *item : std::as_const(m_items))
             size = size.expandedTo(item->effectiveSizeHint(Qt::MinimumSize));
         size += QSizeF(left + right, top + bottom);
     }
@@ -116,7 +116,7 @@ QSizeF FlowLayout::prefSize() const
 
     qreal maxh = 0;
     qreal totalWidth = 0;
-    for (const QGraphicsLayoutItem *item : qAsConst(m_items)) {
+    for (const QGraphicsLayoutItem *item : std::as_const(m_items)) {
         if (totalWidth > 0)
             totalWidth += spacing(Qt::Horizontal);
         QSizeF pref = item->effectiveSizeHint(Qt::PreferredSize);
@@ -135,7 +135,7 @@ QSizeF FlowLayout::maxSize() const
 {
     qreal totalWidth = 0;
     qreal totalHeight = 0;
-    for (const QGraphicsLayoutItem *item : qAsConst(m_items)) {
+    for (const QGraphicsLayoutItem *item : std::as_const(m_items)) {
         if (totalWidth > 0)
             totalWidth += spacing(Qt::Horizontal);
         if (totalHeight > 0)
diff --git a/examples/widgets/itemviews/addressbook/addresswidget.cpp b/examples/widgets/itemviews/addressbook/addresswidget.cpp
index 955a766750..6be8867a94 100644
--- a/examples/widgets/itemviews/addressbook/addresswidget.cpp
+++ b/examples/widgets/itemviews/addressbook/addresswidget.cpp
@@ -164,7 +164,7 @@ void AddressWidget::readFromFile(const QString &fileName)
         QMessageBox::information(this, tr("No contacts in file"),
                                  tr("The file you are attempting to open contains no contacts."));
     } else {
-        for (const auto &contact: qAsConst(contacts))
+        for (const auto &contact: std::as_const(contacts))
             addEntry(contact.name, contact.address);
     }
 }
diff --git a/examples/widgets/itemviews/editabletreemodel/treeitem.cpp b/examples/widgets/itemviews/editabletreemodel/treeitem.cpp
index 5784202b93..942ba277a3 100644
--- a/examples/widgets/itemviews/editabletreemodel/treeitem.cpp
+++ b/examples/widgets/itemviews/editabletreemodel/treeitem.cpp
@@ -88,7 +88,7 @@ bool TreeItem::insertColumns(int position, int columns)
     for (int column = 0; column < columns; ++column)
         itemData.insert(position, QVariant());
 
-    for (TreeItem *child : qAsConst(childItems))
+    for (TreeItem *child : std::as_const(childItems))
         child->insertColumns(position, columns);
 
     return true;
@@ -123,7 +123,7 @@ bool TreeItem::removeColumns(int position, int columns)
     for (int column = 0; column < columns; ++column)
         itemData.remove(position);
 
-    for (TreeItem *child : qAsConst(childItems))
+    for (TreeItem *child : std::as_const(childItems))
         child->removeColumns(position, columns);
 
     return true;
diff --git a/examples/widgets/layouts/dynamiclayouts/dialog.cpp b/examples/widgets/layouts/dynamiclayouts/dialog.cpp
index 8dc3d069bc..28b4fc2f7f 100644
--- a/examples/widgets/layouts/dynamiclayouts/dialog.cpp
+++ b/examples/widgets/layouts/dynamiclayouts/dialog.cpp
@@ -57,7 +57,7 @@ void Dialog::rotateWidgets()
 {
     Q_ASSERT(rotatableWidgets.count() % 2 == 0);
 
-    for (QWidget *widget : qAsConst(rotatableWidgets))
+    for (QWidget *widget : std::as_const(rotatableWidgets))
         rotatableLayout->removeWidget(widget);
 
     rotatableWidgets.enqueue(rotatableWidgets.dequeue());
diff --git a/examples/widgets/layouts/flowlayout/flowlayout.cpp b/examples/widgets/layouts/flowlayout/flowlayout.cpp
index b4cba9fe69..0565053096 100644
--- a/examples/widgets/layouts/flowlayout/flowlayout.cpp
+++ b/examples/widgets/layouts/flowlayout/flowlayout.cpp
@@ -108,7 +108,7 @@ QSize FlowLayout::sizeHint() const
 QSize FlowLayout::minimumSize() const
 {
     QSize size;
-    for (const QLayoutItem *item : qAsConst(itemList))
+    for (const QLayoutItem *item : std::as_const(itemList))
         size = size.expandedTo(item->minimumSize());
 
     const QMargins margins = contentsMargins();
@@ -129,7 +129,7 @@ int FlowLayout::doLayout(const QRect &rect, bool testOnly) const
 //! [9]
 
 //! [10]
-    for (QLayoutItem *item : qAsConst(itemList)) {
+    for (QLayoutItem *item : std::as_const(itemList)) {
         const QWidget *wid = item->widget();
         int spaceX = horizontalSpacing();
         if (spaceX == -1)
diff --git a/examples/widgets/painting/fontsampler/mainwindow.cpp b/examples/widgets/painting/fontsampler/mainwindow.cpp
index 1b1b816395..e2bd768f79 100644
--- a/examples/widgets/painting/fontsampler/mainwindow.cpp
+++ b/examples/widgets/painting/fontsampler/mainwindow.cpp
@@ -260,7 +260,7 @@ void MainWindow::printPage(int index, QPainter *painter, QPrinter *printer)
         bool italic = item->data(0, Qt::UserRole + 1).toBool();
 
         // Calculate the maximum width and total height of the text.
-        for (int size : qAsConst(sampleSizes)) {
+        for (int size : std::as_const(sampleSizes)) {
             QFont font(family, size, weight, italic);
             font.setStyleName(style);
             font = QFont(font, painter->device());
@@ -294,7 +294,7 @@ void MainWindow::printPage(int index, QPainter *painter, QPrinter *printer)
         bool italic = item->data(0, Qt::UserRole + 1).toBool();
 
         // Draw each line of text.
-        for (int size : qAsConst(sampleSizes)) {
+        for (int size : std::as_const(sampleSizes)) {
             QFont font(family, size, weight, italic);
             font.setStyleName(style);
             font = QFont(font, painter->device());
diff --git a/examples/widgets/painting/gradients/gradients.cpp b/examples/widgets/painting/gradients/gradients.cpp
index dcedd250cf..538d851eb8 100644
--- a/examples/widgets/painting/gradients/gradients.cpp
+++ b/examples/widgets/painting/gradients/gradients.cpp
@@ -534,7 +534,7 @@ void GradientRenderer::paint(QPainter *p)
         g = QConicalGradient(pts.at(0), angle);
     }
 
-    for (const auto &stop : qAsConst(m_stops))
+    for (const auto &stop : std::as_const(m_stops))
         g.setColorAt(stop.first, stop.second);
 
     g.setSpread(m_spread);
diff --git a/examples/widgets/painting/painterpaths/window.cpp b/examples/widgets/painting/painterpaths/window.cpp
index 4fc3e8efd9..01b62d6988 100644
--- a/examples/widgets/painting/painterpaths/window.cpp
+++ b/examples/widgets/painting/painterpaths/window.cpp
@@ -156,7 +156,7 @@ Window::Window()
     connect(penColorComboBox, &QComboBox::activated,
             this, &Window::penColorChanged);
 
-    for (RenderArea *area : qAsConst(renderAreas)) {
+    for (RenderArea *area : std::as_const(renderAreas)) {
         connect(penWidthSpinBox, &QSpinBox::valueChanged,
                 area, &RenderArea::setPenWidth);
         connect(rotationAngleSpinBox, &QSpinBox::valueChanged,
@@ -167,7 +167,7 @@ Window::Window()
     QGridLayout *topLayout = new QGridLayout;
 
     int i = 0;
-    for (RenderArea *area : qAsConst(renderAreas)) {
+    for (RenderArea *area : std::as_const(renderAreas)) {
         topLayout->addWidget(area, i / 3, i % 3);
         ++i;
     }
@@ -204,7 +204,7 @@ void Window::fillRuleChanged()
 {
     Qt::FillRule rule = (Qt::FillRule)currentItemData(fillRuleComboBox).toInt();
 
-    for (RenderArea *area : qAsConst(renderAreas))
+    for (RenderArea *area : std::as_const(renderAreas))
         area->setFillRule(rule);
 }
 //! [19]
@@ -215,7 +215,7 @@ void Window::fillGradientChanged()
     QColor color1 = qvariant_cast<QColor>(currentItemData(fillColor1ComboBox));
     QColor color2 = qvariant_cast<QColor>(currentItemData(fillColor2ComboBox));
 
-    for (RenderArea *area : qAsConst(renderAreas))
+    for (RenderArea *area : std::as_const(renderAreas))
         area->setFillGradient(color1, color2);
 }
 //! [20]
@@ -225,7 +225,7 @@ void Window::penColorChanged()
 {
     QColor color = qvariant_cast<QColor>(currentItemData(penColorComboBox));
 
-    for (RenderArea *area : qAsConst(renderAreas))
+    for (RenderArea *area : std::as_const(renderAreas))
         area->setPenColor(color);
 }
 //! [21]
diff --git a/examples/widgets/painting/shared/hoverpoints.cpp b/examples/widgets/painting/shared/hoverpoints.cpp
index 7d2bb81538..87e1eb4415 100644
--- a/examples/widgets/painting/shared/hoverpoints.cpp
+++ b/examples/widgets/painting/shared/hoverpoints.cpp
@@ -268,7 +268,7 @@ void HoverPoints::paintPoints()
     p.setPen(m_pointPen);
     p.setBrush(m_pointBrush);
 
-    for (const auto &point : qAsConst(m_points)) {
+    for (const auto &point : std::as_const(m_points)) {
         QRectF bounds = pointBoundingRect(point);
         if (m_shape == CircleShape)
             p.drawEllipse(bounds);
diff --git a/examples/widgets/richtext/syntaxhighlighter/highlighter.cpp b/examples/widgets/richtext/syntaxhighlighter/highlighter.cpp
index 11e203c333..d78de20a7d 100644
--- a/examples/widgets/richtext/syntaxhighlighter/highlighter.cpp
+++ b/examples/widgets/richtext/syntaxhighlighter/highlighter.cpp
@@ -72,7 +72,7 @@ Highlighter::Highlighter(QTextDocument *parent)
 //! [7]
 void Highlighter::highlightBlock(const QString &text)
 {
-    for (const HighlightingRule &rule : qAsConst(highlightingRules)) {
+    for (const HighlightingRule &rule : std::as_const(highlightingRules)) {
         QRegularExpressionMatchIterator matchIterator = rule.pattern.globalMatch(text);
         while (matchIterator.hasNext()) {
             QRegularExpressionMatch match = matchIterator.next();
diff --git a/examples/widgets/widgets/scribble/mainwindow.cpp b/examples/widgets/widgets/scribble/mainwindow.cpp
index b7e08598f7..0a0a658265 100644
--- a/examples/widgets/widgets/scribble/mainwindow.cpp
+++ b/examples/widgets/widgets/scribble/mainwindow.cpp
@@ -153,7 +153,7 @@ void MainWindow::createMenus()
 //! [15] //! [16]
 {
     saveAsMenu = new QMenu(tr("&Save As"), this);
-    for (QAction *action : qAsConst(saveAsActs))
+    for (QAction *action : std::as_const(saveAsActs))
         saveAsMenu->addAction(action);
 
     fileMenu = new QMenu(tr("&File"), this);
diff --git a/examples/widgets/widgets/tooltips/sortingbox.cpp b/examples/widgets/widgets/tooltips/sortingbox.cpp
index 2b9127f5bd..1f6de0bd8c 100644
--- a/examples/widgets/widgets/tooltips/sortingbox.cpp
+++ b/examples/widgets/widgets/tooltips/sortingbox.cpp
@@ -97,7 +97,7 @@ void SortingBox::paintEvent(QPaintEvent * /* event */)
 {
     QPainter painter(this);
     painter.setRenderHint(QPainter::Antialiasing);
-    for (const ShapeItem &shapeItem : qAsConst(shapeItems)) {
+    for (const ShapeItem &shapeItem : std::as_const(shapeItems)) {
 //! [8] //! [9]
         painter.translate(shapeItem.position());
 //! [9] //! [10]