Polish the QML reference examples

- Use member initialization, which allows for using
  constructors from the base classes
- Use qsizetype for indexes
- Use qInfo() instead of qWarning() for printing
- Add spaces/fix formatting

Pick-to: 6.2
Change-Id: Iebce1b810ce00f29395207d93303363b3b71e52e
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>

1 files changed, 7 insertions, 5 deletions

diff --git a/examples/qml/referenceexamples/adding/main.cpp b/examples/qml/referenceexamples/adding/main.cpp
index 6c3920f04b..fbf3e71af7 100644
--- a/examples/qml/referenceexamples/adding/main.cpp
+++ b/examples/qml/referenceexamples/adding/main.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2017 The Qt Company Ltd.
+** Copyright (C) 2021 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the examples of the Qt Toolkit.
@@ -47,6 +47,7 @@
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/
+
 #include <QCoreApplication>
 #include <QQmlEngine>
 #include <QQmlComponent>
@@ -60,12 +61,13 @@ int main(int argc, char ** argv)
     QQmlEngine engine;
     QQmlComponent component(&engine, QUrl("qrc:example.qml"));
     auto *person = qobject_cast<Person *>(component.create());
-    if (person) {
-        qWarning() << "The person's name is" << person->name();
-        qWarning() << "They wear a" << person->shoeSize() << "sized shoe";
-    } else {
+    if (!person) {
         qWarning() << component.errors();
+        return EXIT_FAILURE;
     }
 
+     qInfo() << "The person's name is" << person->name()
+         << "\nThey wear a" << person->shoeSize() << "sized shoe";
+
     return EXIT_SUCCESS;
 }