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: Ia5d1ab50f82abad6e51bcd5883e22595eaaedc33
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>

3 files changed, 3 insertions, 3 deletions

diff --git a/src/xmlpatterns/api/qabstractmessagehandler.h b/src/xmlpatterns/api/qabstractmessagehandler.h
index 3106f0d..09c8f86 100644
--- a/src/xmlpatterns/api/qabstractmessagehandler.h
+++ b/src/xmlpatterns/api/qabstractmessagehandler.h
@@ -45,7 +45,7 @@ class Q_XMLPATTERNS_EXPORT QAbstractMessageHandler : public QObject
 {
     Q_OBJECT
 public:
-    QAbstractMessageHandler(QObject *parent = 0);
+    QAbstractMessageHandler(QObject *parent = Q_NULLPTR);
     virtual ~QAbstractMessageHandler();
 
     void message(QtMsgType type,
diff --git a/src/xmlpatterns/api/qabstracturiresolver.h b/src/xmlpatterns/api/qabstracturiresolver.h
index 6a57b50..2131aa7 100644
--- a/src/xmlpatterns/api/qabstracturiresolver.h
+++ b/src/xmlpatterns/api/qabstracturiresolver.h
@@ -47,7 +47,7 @@ class Q_XMLPATTERNS_EXPORT QAbstractUriResolver : public QObject
 {
     Q_OBJECT
 public:
-    QAbstractUriResolver(QObject *parent = 0);
+    QAbstractUriResolver(QObject *parent = Q_NULLPTR);
     virtual ~QAbstractUriResolver();
 
     virtual QUrl resolve(const QUrl &relative,
diff --git a/src/xmlpatterns/api/qabstractxmlnodemodel.h b/src/xmlpatterns/api/qabstractxmlnodemodel.h
index 06df5be..c174be7 100644
--- a/src/xmlpatterns/api/qabstractxmlnodemodel.h
+++ b/src/xmlpatterns/api/qabstractxmlnodemodel.h
@@ -98,7 +98,7 @@ namespace QPatternist
         {
             data = 0;
             additionalData = 0;
-            model = 0;
+            model = Q_NULLPTR;
         }
     };
 }