QPainter: make qt_show_painter_debug_output constexpr

Nothing is modifying the variable, so make it constexpr (was: mutable)
and change all the if's into if-constexpr's.

While the compiler doesn't care unless QT_DEBUG_DRAW is defined, this
will prevent the next human reader from going on the same fruitless
hunt for a setter as yours truly.

Amends the start of the public history.

Pick-to: 6.10 6.9 6.8 6.5
Change-Id: Ib2f8c0fcb2938ca3548b9452c4d8eb482e6ffbe5
Reviewed-by: Volker Hilsheimer <[email protected]>

1 files changed, 53 insertions, 53 deletions

diff --git a/src/gui/painting/qpainter.cpp b/src/gui/painting/qpainter.cpp
index b868233d853..5013e96f740 100644
--- a/src/gui/painting/qpainter.cpp
+++ b/src/gui/painting/qpainter.cpp
@@ -53,7 +53,7 @@ static_assert(sizeof(QScopedPointer<QPainterPrivate>) == sizeof(std::unique_ptr<
 
 // #define QT_DEBUG_DRAW
 #ifdef QT_DEBUG_DRAW
-bool qt_show_painter_debug_output = true;
+constexpr bool qt_show_painter_debug_output = true;
 #endif
 
 extern QPixmap qt_pixmapForBrush(int style, bool invert);
@@ -316,7 +316,7 @@ void QPainterPrivate::detachPainterPrivate(QPainter *q)
 void QPainterPrivate::draw_helper(const QPainterPath &originalPath, DrawOperation op)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output) {
+    if constexpr (qt_show_painter_debug_output) {
         printf("QPainter::drawHelper\n");
     }
 #endif
@@ -1546,7 +1546,7 @@ void QPainterPrivate::initFrom(const QPaintDevice *device)
 void QPainter::save()
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::save()\n");
 #endif
     Q_D(QPainter);
@@ -1580,7 +1580,7 @@ void QPainter::save()
 void QPainter::restore()
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::restore()\n");
 #endif
     Q_D(QPainter);
@@ -1702,7 +1702,7 @@ bool QPainter::begin(QPaintDevice *pd)
         pd = rpd;
 
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::begin(), device=%p, type=%d\n", pd, pd->devType());
 #endif
 
@@ -1848,7 +1848,7 @@ bool QPainter::begin(QPaintDevice *pd)
 bool QPainter::end()
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::end()\n");
 #endif
     Q_D(QPainter);
@@ -2112,7 +2112,7 @@ void QPainter::setBrushOrigin(const QPointF &p)
 {
     Q_D(QPainter);
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setBrushOrigin(), (%.2f,%.2f)\n", p.x(), p.y());
 #endif
 
@@ -2440,7 +2440,7 @@ void QPainter::setClipping(bool enable)
 {
     Q_D(QPainter);
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setClipping(), enable=%s, was=%s\n",
                enable ? "on" : "off",
                hasClipping() ? "on" : "off");
@@ -2819,7 +2819,7 @@ void QPainter::setClipRegion(const QRegion &r, Qt::ClipOperation op)
     Q_D(QPainter);
 #ifdef QT_DEBUG_DRAW
     QRect rect = r.boundingRect();
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setClipRegion(), size=%d, [%d,%d,%d,%d]\n",
            r.rectCount(), rect.x(), rect.y(), rect.width(), rect.height());
 #endif
@@ -2870,7 +2870,7 @@ void QPainter::setWorldMatrixEnabled(bool enable)
 {
     Q_D(QPainter);
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setMatrixEnabled(), enable=%d\n", enable);
 #endif
 
@@ -2913,7 +2913,7 @@ bool QPainter::worldMatrixEnabled() const
 void QPainter::scale(qreal sx, qreal sy)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::scale(), sx=%f, sy=%f\n", sx, sy);
 #endif
     Q_D(QPainter);
@@ -2936,7 +2936,7 @@ void QPainter::scale(qreal sx, qreal sy)
 void QPainter::shear(qreal sh, qreal sv)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::shear(), sh=%f, sv=%f\n", sh, sv);
 #endif
     Q_D(QPainter);
@@ -2961,7 +2961,7 @@ void QPainter::shear(qreal sh, qreal sv)
 void QPainter::rotate(qreal a)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::rotate(), angle=%f\n", a);
 #endif
     Q_D(QPainter);
@@ -2986,7 +2986,7 @@ void QPainter::translate(const QPointF &offset)
     qreal dx = offset.x();
     qreal dy = offset.y();
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::translate(), dx=%f, dy=%f\n", dx, dy);
 #endif
     Q_D(QPainter);
@@ -3029,7 +3029,7 @@ void QPainter::translate(const QPointF &offset)
 void QPainter::setClipPath(const QPainterPath &path, Qt::ClipOperation op)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output) {
+    if constexpr (qt_show_painter_debug_output) {
         QRectF b = path.boundingRect();
         printf("QPainter::setClipPath(), size=%d, op=%d, bounds=[%.2f,%.2f,%.2f,%.2f]\n",
                path.elementCount(), op, b.x(), b.y(), b.width(), b.height());
@@ -3163,7 +3163,7 @@ void QPainter::drawPath(const QPainterPath &path)
 {
 #ifdef QT_DEBUG_DRAW
     QRectF pathBounds = path.boundingRect();
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawPath(), size=%d, [%.2f,%.2f,%.2f,%.2f]\n",
                path.elementCount(),
                pathBounds.x(), pathBounds.y(), pathBounds.width(), pathBounds.height());
@@ -3278,7 +3278,7 @@ void QPainter::drawPath(const QPainterPath &path)
 void QPainter::drawRects(const QRectF *rects, int rectCount)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawRects(), count=%d\n", rectCount);
 #endif
     Q_D(QPainter);
@@ -3338,7 +3338,7 @@ void QPainter::drawRects(const QRectF *rects, int rectCount)
 void QPainter::drawRects(const QRect *rects, int rectCount)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawRects(), count=%d\n", rectCount);
 #endif
     Q_D(QPainter);
@@ -3438,7 +3438,7 @@ void QPainter::drawRects(const QRect *rects, int rectCount)
 void QPainter::drawPoints(const QPointF *points, int pointCount)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawPoints(), count=%d\n", pointCount);
 #endif
     Q_D(QPainter);
@@ -3500,7 +3500,7 @@ void QPainter::drawPoints(const QPointF *points, int pointCount)
 void QPainter::drawPoints(const QPoint *points, int pointCount)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawPoints(), count=%d\n", pointCount);
 #endif
     Q_D(QPainter);
@@ -3585,7 +3585,7 @@ void QPainter::drawPoints(const QPoint *points, int pointCount)
 void QPainter::setBackgroundMode(Qt::BGMode mode)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setBackgroundMode(), mode=%d\n", mode);
 #endif
 
@@ -3631,7 +3631,7 @@ Qt::BGMode QPainter::backgroundMode() const
 void QPainter::setPen(const QColor &color)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setPen(), color=%04x\n", color.rgb());
 #endif
     Q_D(QPainter);
@@ -3664,7 +3664,7 @@ void QPainter::setPen(const QPen &pen)
 {
 
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setPen(), color=%04x, (brushStyle=%d) style=%d, cap=%d, join=%d\n",
            pen.color().rgb(), pen.brush().style(), pen.style(), pen.capStyle(), pen.joinStyle());
 #endif
@@ -3743,7 +3743,7 @@ const QPen &QPainter::pen() const
 void QPainter::setBrush(const QBrush &brush)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setBrush(), color=%04x, style=%d\n", brush.color().rgb(), brush.style());
 #endif
     Q_D(QPainter);
@@ -3858,7 +3858,7 @@ const QBrush &QPainter::brush() const
 void QPainter::setBackground(const QBrush &bg)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setBackground(), color=%04x, style=%d\n", bg.color().rgb(), bg.style());
 #endif
 
@@ -3890,7 +3890,7 @@ void QPainter::setFont(const QFont &font)
     Q_D(QPainter);
 
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setFont(), family=%s, pointSize=%d\n", font.families().first().toLatin1().constData(), font.pointSize());
 #endif
 
@@ -3946,7 +3946,7 @@ const QFont &QPainter::font() const
 void QPainter::drawRoundedRect(const QRectF &rect, qreal xRadius, qreal yRadius, Qt::SizeMode mode)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawRoundedRect(), [%.2f,%.2f,%.2f,%.2f]\n", rect.x(), rect.y(), rect.width(), rect.height());
 #endif
     Q_D(QPainter);
@@ -4010,7 +4010,7 @@ void QPainter::drawRoundedRect(const QRectF &rect, qreal xRadius, qreal yRadius,
 void QPainter::drawEllipse(const QRectF &r)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawEllipse(), [%.2f,%.2f,%.2f,%.2f]\n", r.x(), r.y(), r.width(), r.height());
 #endif
     Q_D(QPainter);
@@ -4053,7 +4053,7 @@ void QPainter::drawEllipse(const QRectF &r)
 void QPainter::drawEllipse(const QRect &r)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawEllipse(), [%d,%d,%d,%d]\n", r.x(), r.y(), r.width(), r.height());
 #endif
     Q_D(QPainter);
@@ -4141,7 +4141,7 @@ void QPainter::drawEllipse(const QRect &r)
 void QPainter::drawArc(const QRectF &r, int a, int alen)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawArc(), [%.2f,%.2f,%.2f,%.2f], angle=%d, sweep=%d\n",
            r.x(), r.y(), r.width(), r.height(), a/16, alen/16);
 #endif
@@ -4205,7 +4205,7 @@ void QPainter::drawArc(const QRectF &r, int a, int alen)
 void QPainter::drawPie(const QRectF &r, int a, int alen)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawPie(), [%.2f,%.2f,%.2f,%.2f], angle=%d, sweep=%d\n",
            r.x(), r.y(), r.width(), r.height(), a/16, alen/16);
 #endif
@@ -4276,7 +4276,7 @@ void QPainter::drawPie(const QRectF &r, int a, int alen)
 void QPainter::drawChord(const QRectF &r, int a, int alen)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawChord(), [%.2f,%.2f,%.2f,%.2f], angle=%d, sweep=%d\n",
            r.x(), r.y(), r.width(), r.height(), a/16, alen/16);
 #endif
@@ -4325,7 +4325,7 @@ void QPainter::drawChord(const QRectF &r, int a, int alen)
 void QPainter::drawLines(const QLineF *lines, int lineCount)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawLines(), line count=%d\n", lineCount);
 #endif
 
@@ -4374,7 +4374,7 @@ void QPainter::drawLines(const QLineF *lines, int lineCount)
 void QPainter::drawLines(const QLine *lines, int lineCount)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawLine(), line count=%d\n", lineCount);
 #endif
 
@@ -4493,7 +4493,7 @@ void QPainter::drawLines(const QPoint *pointPairs, int lineCount)
 void QPainter::drawPolyline(const QPointF *points, int pointCount)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawPolyline(), count=%d\n", pointCount);
 #endif
     Q_D(QPainter);
@@ -4534,7 +4534,7 @@ void QPainter::drawPolyline(const QPointF *points, int pointCount)
 void QPainter::drawPolyline(const QPoint *points, int pointCount)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawPolyline(), count=%d\n", pointCount);
 #endif
     Q_D(QPainter);
@@ -4609,7 +4609,7 @@ void QPainter::drawPolyline(const QPoint *points, int pointCount)
 void QPainter::drawPolygon(const QPointF *points, int pointCount, Qt::FillRule fillRule)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawPolygon(), count=%d\n", pointCount);
 #endif
 
@@ -4648,7 +4648,7 @@ void QPainter::drawPolygon(const QPointF *points, int pointCount, Qt::FillRule f
 void QPainter::drawPolygon(const QPoint *points, int pointCount, Qt::FillRule fillRule)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawPolygon(), count=%d\n", pointCount);
 #endif
 
@@ -4747,7 +4747,7 @@ void QPainter::drawPolygon(const QPoint *points, int pointCount, Qt::FillRule fi
 void QPainter::drawConvexPolygon(const QPoint *points, int pointCount)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawConvexPolygon(), count=%d\n", pointCount);
 #endif
 
@@ -4781,7 +4781,7 @@ void QPainter::drawConvexPolygon(const QPoint *points, int pointCount)
 void QPainter::drawConvexPolygon(const QPointF *points, int pointCount)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawConvexPolygon(), count=%d\n", pointCount);
 #endif
 
@@ -4845,7 +4845,7 @@ static inline QPointF roundInDeviceCoordinates(const QPointF &p, const QTransfor
 void QPainter::drawPixmap(const QPointF &p, const QPixmap &pm)
 {
 #if defined QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawPixmap(), p=[%.2f,%.2f], pix=[%d,%d]\n",
                p.x(), p.y(),
                pm.width(), pm.height());
@@ -4917,7 +4917,7 @@ void QPainter::drawPixmap(const QPointF &p, const QPixmap &pm)
 void QPainter::drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr)
 {
 #if defined QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawPixmap(), target=[%.2f,%.2f,%.2f,%.2f], pix=[%d,%d], source=[%.2f,%.2f,%.2f,%.2f]\n",
                r.x(), r.y(), r.width(), r.height(),
                pm.width(), pm.height(),
@@ -5637,7 +5637,7 @@ void QPainter::drawStaticText(const QPointF &topLeftPosition, const QStaticText
 void QPainter::drawText(const QPointF &p, const QString &str, int tf, int justificationPadding)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawText(), pos=[%.2f,%.2f], str='%s'\n", p.x(), p.y(), str.toLatin1().constData());
 #endif
 
@@ -5702,7 +5702,7 @@ void QPainter::drawText(const QPointF &p, const QString &str, int tf, int justif
 void QPainter::drawText(const QRect &r, int flags, const QString &str, QRect *br)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawText(), r=[%d,%d,%d,%d], flags=%d, str='%s'\n",
            r.x(), r.y(), r.width(), r.height(), flags, str.toLatin1().constData());
 #endif
@@ -5789,7 +5789,7 @@ void QPainter::drawText(const QRect &r, int flags, const QString &str, QRect *br
 void QPainter::drawText(const QRectF &r, int flags, const QString &str, QRectF *br)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawText(), r=[%.2f,%.2f,%.2f,%.2f], flags=%d, str='%s'\n",
            r.x(), r.y(), r.width(), r.height(), flags, str.toLatin1().constData());
 #endif
@@ -5908,7 +5908,7 @@ void QPainter::drawText(const QRectF &r, int flags, const QString &str, QRectF *
 void QPainter::drawText(const QRectF &r, const QString &text, const QTextOption &o)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawText(), r=[%.2f,%.2f,%.2f,%.2f], str='%s'\n",
            r.x(), r.y(), r.width(), r.height(), text.toLatin1().constData());
 #endif
@@ -6167,7 +6167,7 @@ void QPainter::drawTextItem(const QPointF &p, const QTextItem &ti)
 void QPainterPrivate::drawTextItem(const QPointF &p, const QTextItem &_ti, QTextEngine *textEngine)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawTextItem(), pos=[%.f,%.f], str='%s'\n",
                p.x(), p.y(), qPrintable(_ti.text()));
 #endif
@@ -6448,7 +6448,7 @@ QRectF QPainter::boundingRect(const QRectF &r, const QString &text, const QTextO
 void QPainter::drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &sp)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::drawTiledPixmap(), target=[%.2f,%.2f,%.2f,%.2f], pix=[%d,%d], offset=[%.2f,%.2f]\n",
                r.x(), r.y(), r.width(), r.height(),
                pixmap.width(), pixmap.height(),
@@ -6899,7 +6899,7 @@ void QPainter::fillRect(const QRectF &r, const QColor &color)
 void QPainter::setRenderHint(RenderHint hint, bool on)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setRenderHint: hint=%x, %s\n", hint, on ? "on" : "off");
 #endif
 
@@ -7012,7 +7012,7 @@ bool QPainter::viewTransformEnabled() const
 void QPainter::setWindow(const QRect &r)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setWindow(), [%d,%d,%d,%d]\n", r.x(), r.y(), r.width(), r.height());
 #endif
 
@@ -7076,7 +7076,7 @@ QRect QPainter::window() const
 void QPainter::setViewport(const QRect &r)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setViewport(), [%d,%d,%d,%d]\n", r.x(), r.y(), r.width(), r.height());
 #endif
 
@@ -7123,7 +7123,7 @@ QRect QPainter::viewport() const
 void QPainter::setViewTransformEnabled(bool enable)
 {
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::setViewTransformEnabled(), enable=%d\n", enable);
 #endif
 
@@ -7975,7 +7975,7 @@ void QPainter::resetTransform()
 {
      Q_D(QPainter);
 #ifdef QT_DEBUG_DRAW
-    if (qt_show_painter_debug_output)
+    if constexpr (qt_show_painter_debug_output)
         printf("QPainter::resetMatrix()\n");
 #endif
     if (!d->engine) {