3 files changed, 11 insertions, 12 deletions
diff --git a/examples/widgets/graphicsview/collidingmice/main.cpp b/examples/widgets/graphicsview/collidingmice/main.cpp
index dfb20815b9..ef6d6cca64 100644
--- a/examples/widgets/graphicsview/collidingmice/main.cpp
+++ b/examples/widgets/graphicsview/collidingmice/main.cpp
@@ -48,13 +48,12 @@
 **
 ****************************************************************************/
 
+#include <QtMath>
 #include <QtWidgets>
 
-#include <math.h>
-
 #include "mouse.h"
 
-static const int MouseCount = 7;
+static constexpr int MouseCount = 7;
 
 //! [0]
 int main(int argc, char **argv)
diff --git a/examples/widgets/graphicsview/collidingmice/mouse.cpp b/examples/widgets/graphicsview/collidingmice/mouse.cpp
index a8fcc05d76..8375092c39 100644
--- a/examples/widgets/graphicsview/collidingmice/mouse.cpp
+++ b/examples/widgets/graphicsview/collidingmice/mouse.cpp
@@ -54,10 +54,10 @@
 #include <QPainter>
 #include <QRandomGenerator>
 #include <QStyleOption>
-#include <qmath.h>
+#include <QtMath>
 
-const qreal Pi = M_PI;
-const qreal TwoPi = 2 * M_PI;
+constexpr qreal Pi = M_PI;
+constexpr qreal TwoPi = 2 * M_PI;
 
 static qreal normalizeAngle(qreal angle)
 {
@@ -69,9 +69,9 @@ static qreal normalizeAngle(qreal angle)
 }
 
 //! [0]
-Mouse::Mouse()
-    : angle(0), speed(0), mouseEyeDirection(0),
-      color(QRandomGenerator::global()->bounded(256), QRandomGenerator::global()->bounded(256), QRandomGenerator::global()->bounded(256))
+Mouse::Mouse() : color(QRandomGenerator::global()->bounded(256),
+                       QRandomGenerator::global()->bounded(256),
+                       QRandomGenerator::global()->bounded(256))
 {
     setRotation(QRandomGenerator::global()->bounded(360 * 16));
 }
diff --git a/examples/widgets/graphicsview/collidingmice/mouse.h b/examples/widgets/graphicsview/collidingmice/mouse.h
index bd9e592242..4b165fced6 100644
--- a/examples/widgets/graphicsview/collidingmice/mouse.h
+++ b/examples/widgets/graphicsview/collidingmice/mouse.h
@@ -68,9 +68,9 @@ protected:
     void advance(int step) override;
 
 private:
-    qreal angle;
-    qreal speed;
-    qreal mouseEyeDirection;
+    qreal angle = 0;
+    qreal speed = 0;
+    qreal mouseEyeDirection = 0;
     QColor color;
 };
 //! [0]