1 files changed, 5 insertions, 5 deletions
diff --git a/examples/qml/referenceexamples/signal/birthdayparty.h b/examples/qml/referenceexamples/signal/birthdayparty.h
index 6d7e022df0..c4a4da5dfb 100644
--- a/examples/qml/referenceexamples/signal/birthdayparty.h
+++ b/examples/qml/referenceexamples/signal/birthdayparty.h
@@ -61,7 +61,7 @@ class BirthdayPartyAttached : public QObject
     Q_PROPERTY(QDate rsvp READ rsvp WRITE setRsvp)
     QML_ANONYMOUS
 public:
-    BirthdayPartyAttached(QObject *object);
+    using QObject::QObject;
 
     QDate rsvp() const;
     void setRsvp(QDate);
@@ -79,14 +79,14 @@ class BirthdayParty : public QObject
     QML_ELEMENT
     QML_ATTACHED(BirthdayPartyAttached)
 public:
-    BirthdayParty(QObject *parent = nullptr);
+    using QObject::QObject;
 
     Person *host() const;
     void setHost(Person *);
 
     QQmlListProperty<Person> guests();
-    int guestCount() const;
-    Person *guest(int) const;
+    qsizetype guestCount() const;
+    Person *guest(qsizetype) const;
 
     static BirthdayPartyAttached *qmlAttachedProperties(QObject *);
 
@@ -97,7 +97,7 @@ signals:
 // ![0]
 
 private:
-    Person *m_host;
+    Person *m_host = nullptr;
     QList<Person *> m_guests;
 };