examples: Mark ctor's as explicit

Make C++ class constructors that can be used with only one
required argument 'explicit' to minimize wrong use of the class.

Change-Id: Ida9f9c2f0c8608c35b0137b2512a6747afd69515
Reviewed-by: Mitch Curtis <mitch.curtis@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/examples/widgets/itemviews/puzzle/piecesmodel.h b/examples/widgets/itemviews/puzzle/piecesmodel.h
index e8fa45a9a0..f306c51331 100644
--- a/examples/widgets/itemviews/puzzle/piecesmodel.h
+++ b/examples/widgets/itemviews/puzzle/piecesmodel.h
@@ -56,7 +56,7 @@ class PiecesModel : public QAbstractListModel
     Q_OBJECT
 
 public:
-    PiecesModel(int pieceSize, QObject *parent = 0);
+    explicit PiecesModel(int pieceSize, QObject *parent = 0);
 
     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
     Qt::ItemFlags flags(const QModelIndex &index) const;
diff --git a/examples/widgets/itemviews/puzzle/puzzlewidget.h b/examples/widgets/itemviews/puzzle/puzzlewidget.h
index 1c0fc77a5f..98056ec217 100644
--- a/examples/widgets/itemviews/puzzle/puzzlewidget.h
+++ b/examples/widgets/itemviews/puzzle/puzzlewidget.h
@@ -57,7 +57,7 @@ class PuzzleWidget : public QWidget
     Q_OBJECT
 
 public:
-    PuzzleWidget(int imageSize, QWidget *parent = 0);
+    explicit PuzzleWidget(int imageSize, QWidget *parent = 0);
     void clear();
 
     int pieceSize() const;