QtWidgets: Use Q_NULLPTR instead of 0 in all public headers

This is in preparation of adding -Wzero-as-null-pointer-constant (or similar)
to the headers check.

Task-number: QTBUG-45291
Change-Id: Ie67d235151ca8d4ef5e721c9cf4a6fd32bd167a0
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/widgets/widgets/qcommandlinkbutton.h b/src/widgets/widgets/qcommandlinkbutton.h
index 486c48af5d..9ddb14270d 100644
--- a/src/widgets/widgets/qcommandlinkbutton.h
+++ b/src/widgets/widgets/qcommandlinkbutton.h
@@ -49,9 +49,9 @@ class Q_WIDGETS_EXPORT QCommandLinkButton: public QPushButton
     Q_PROPERTY(bool flat READ isFlat WRITE setFlat DESIGNABLE false)
 
 public:
-    explicit QCommandLinkButton(QWidget *parent=0);
-    explicit QCommandLinkButton(const QString &text, QWidget *parent=0);
-    explicit QCommandLinkButton(const QString &text, const QString &description, QWidget *parent=0);
+    explicit QCommandLinkButton(QWidget *parent = Q_NULLPTR);
+    explicit QCommandLinkButton(const QString &text, QWidget *parent = Q_NULLPTR);
+    explicit QCommandLinkButton(const QString &text, const QString &description, QWidget *parent = Q_NULLPTR);
     ~QCommandLinkButton();
 
     QString description() const;