3 files changed, 6 insertions, 6 deletions
diff --git a/src/tools/moc/generator.h b/src/tools/moc/generator.h
index 134166580b..eae0353199 100644
--- a/src/tools/moc/generator.h
+++ b/src/tools/moc/generator.h
@@ -39,7 +39,7 @@ class Generator
     ClassDef *cdef;
     QVector<uint> meta_data;
 public:
-    Generator(ClassDef *classDef, const QVector<QByteArray> &metaTypes, const QHash<QByteArray, QByteArray> &knownQObjectClasses, const QHash<QByteArray, QByteArray> &knownGadgets, FILE *outfile = 0);
+    Generator(ClassDef *classDef, const QVector<QByteArray> &metaTypes, const QHash<QByteArray, QByteArray> &knownQObjectClasses, const QHash<QByteArray, QByteArray> &knownGadgets, FILE *outfile = nullptr);
     void generateCode();
 private:
     bool registerableMetaType(const QByteArray &propertyType);
diff --git a/src/tools/moc/parser.h b/src/tools/moc/parser.h
index bedcbbf7e2..63f4cf0d9a 100644
--- a/src/tools/moc/parser.h
+++ b/src/tools/moc/parser.h
@@ -69,9 +69,9 @@ public:
     inline const Symbol &symbol() { return symbols.at(index-1);}
 
     Q_NORETURN void error(int rollback);
-    Q_NORETURN void error(const char *msg = 0);
-    void warning(const char * = 0);
-    void note(const char * = 0);
+    Q_NORETURN void error(const char *msg = nullptr);
+    void warning(const char * = nullptr);
+    void note(const char * = nullptr);
 
 };
 
diff --git a/src/tools/uic/driver.h b/src/tools/uic/driver.h
index 1303d0bf8a..69206e1608 100644
--- a/src/tools/uic/driver.h
+++ b/src/tools/uic/driver.h
@@ -56,8 +56,8 @@ public:
 
     // tools
     bool printDependencies(const QString &fileName);
-    bool uic(const QString &fileName, QTextStream *output = 0);
-    bool uic(const QString &fileName, DomUI *ui, QTextStream *output = 0);
+    bool uic(const QString &fileName, QTextStream *output = nullptr);
+    bool uic(const QString &fileName, DomUI *ui, QTextStream *output = nullptr);
 
     // configuration
     inline QTextStream &output() const { return *m_output; }