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: I725682ffe00dab94f84b00eed3aa76377bb80519
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>

3 files changed, 9 insertions, 9 deletions

diff --git a/src/svg/qgraphicssvgitem.h b/src/svg/qgraphicssvgitem.h
index 541ddec..f3410d7 100644
--- a/src/svg/qgraphicssvgitem.h
+++ b/src/svg/qgraphicssvgitem.h
@@ -55,8 +55,8 @@ class Q_SVG_EXPORT QGraphicsSvgItem : public QGraphicsObject
     Q_PROPERTY(QSize maximumCacheSize READ maximumCacheSize WRITE setMaximumCacheSize)
 
 public:
-    QGraphicsSvgItem(QGraphicsItem *parentItem=0);
-    QGraphicsSvgItem(const QString &fileName, QGraphicsItem *parentItem=0);
+    QGraphicsSvgItem(QGraphicsItem *parentItem = Q_NULLPTR);
+    QGraphicsSvgItem(const QString &fileName, QGraphicsItem *parentItem = Q_NULLPTR);
 
     void setSharedRenderer(QSvgRenderer *renderer);
     QSvgRenderer *renderer() const;
@@ -74,7 +74,7 @@ public:
 
     virtual void paint(QPainter *painter,
                        const QStyleOptionGraphicsItem *option,
-                       QWidget *widget=0);
+                       QWidget *widget = Q_NULLPTR);
 
     enum { Type = 13 };
     virtual int type() const;
diff --git a/src/svg/qsvgrenderer.h b/src/svg/qsvgrenderer.h
index 7d29e6d..612b10d 100644
--- a/src/svg/qsvgrenderer.h
+++ b/src/svg/qsvgrenderer.h
@@ -59,10 +59,10 @@ class Q_SVG_EXPORT QSvgRenderer : public QObject
     Q_PROPERTY(int framesPerSecond READ framesPerSecond WRITE setFramesPerSecond)
     Q_PROPERTY(int currentFrame READ currentFrame WRITE setCurrentFrame)
 public:
-    QSvgRenderer(QObject *parent=0);
-    QSvgRenderer(const QString &filename, QObject *parent=0);
-    QSvgRenderer(const QByteArray &contents, QObject *parent=0);
-    QSvgRenderer(QXmlStreamReader *contents, QObject *parent=0);
+    QSvgRenderer(QObject *parent = Q_NULLPTR);
+    QSvgRenderer(const QString &filename, QObject *parent = Q_NULLPTR);
+    QSvgRenderer(const QByteArray &contents, QObject *parent = Q_NULLPTR);
+    QSvgRenderer(QXmlStreamReader *contents, QObject *parent = Q_NULLPTR);
     ~QSvgRenderer();
 
     bool isValid() const;
diff --git a/src/svg/qsvgwidget.h b/src/svg/qsvgwidget.h
index 86616e1..3b8c26a 100644
--- a/src/svg/qsvgwidget.h
+++ b/src/svg/qsvgwidget.h
@@ -53,8 +53,8 @@ class Q_SVG_EXPORT QSvgWidget : public QWidget
 {
     Q_OBJECT
 public:
-    QSvgWidget(QWidget *parent=0);
-    QSvgWidget(const QString &file, QWidget *parent=0);
+    QSvgWidget(QWidget *parent = Q_NULLPTR);
+    QSvgWidget(const QString &file, QWidget *parent = Q_NULLPTR);
     ~QSvgWidget();
 
     QSvgRenderer *renderer() const;