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-rw-r--r--examples/widgets/widgets/calculator/button.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/examples/widgets/widgets/calculator/button.h b/examples/widgets/widgets/calculator/button.h
index 057640700f..7c6f26867f 100644
--- a/examples/widgets/widgets/calculator/button.h
+++ b/examples/widgets/widgets/calculator/button.h
@@ -59,7 +59,7 @@ class Button : public QToolButton
Q_OBJECT
public:
- explicit Button(const QString &text, QWidget *parent = 0);
+ explicit Button(const QString &text, QWidget *parent = nullptr);
QSize sizeHint() const override;
};