Make public headers compile with -Wzero-as-null-pointer-constant

... or equivalent.

QtBase 5.6 headers already compile that way, so let the other
modules follow suit.

Task-number: QTBUG-45291
Change-Id: Ied526fb2d7adc3a68946d6843a6bd6f475ebf864
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/src/quick/items/qquickwindow.h b/src/quick/items/qquickwindow.h
index d4ffb100de..92c560644e 100644
--- a/src/quick/items/qquickwindow.h
+++ b/src/quick/items/qquickwindow.h
@@ -89,7 +89,7 @@ public:
     };
     Q_ENUM(SceneGraphError)
 
-    QQuickWindow(QWindow *parent = 0);
+    QQuickWindow(QWindow *parent = Q_NULLPTR);
     explicit QQuickWindow(QQuickRenderControl *renderControl);
 
     virtual ~QQuickWindow();
@@ -123,7 +123,7 @@ public:
     // Scene graph specific functions
     QSGTexture *createTextureFromImage(const QImage &image) const;
     QSGTexture *createTextureFromImage(const QImage &image, CreateTextureOptions options) const;
-    QSGTexture *createTextureFromId(uint id, const QSize &size, CreateTextureOptions options = CreateTextureOption(0)) const;
+    QSGTexture *createTextureFromId(uint id, const QSize &size, CreateTextureOptions options = CreateTextureOption()) const;
 
     void setClearBeforeRendering(bool enabled);
     bool clearBeforeRendering() const;
@@ -170,7 +170,7 @@ public Q_SLOTS:
     void releaseResources();
 
 protected:
-    QQuickWindow(QQuickWindowPrivate &dd, QWindow *parent = 0);
+    QQuickWindow(QQuickWindowPrivate &dd, QWindow *parent = Q_NULLPTR);
 
     void exposeEvent(QExposeEvent *) Q_DECL_OVERRIDE;
     void resizeEvent(QResizeEvent *) Q_DECL_OVERRIDE;