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>

1 files changed, 2 insertions, 2 deletions

diff --git a/examples/opengl/pbuffers/cube.h b/examples/opengl/pbuffers/cube.h
index ad56e43e49..81e82637cb 100644
--- a/examples/opengl/pbuffers/cube.h
+++ b/examples/opengl/pbuffers/cube.h
@@ -95,7 +95,7 @@ class TileBuilder
 {
 public:
     enum { bl, br, tr, tl };
-    TileBuilder(Geometry *, qreal depth = 0.0f, qreal size = 1.0f);
+    explicit TileBuilder(Geometry *, qreal depth = 0.0f, qreal size = 1.0f);
     Tile *newTile(const QVector3D &loc = QVector3D()) const;
     void setColor(QColor c) { color = c; }
 protected:
@@ -140,7 +140,7 @@ private:
 class CubeBuilder : public TileBuilder
 {
 public:
-    CubeBuilder(Geometry *, qreal depth = 0.0f, qreal size = 1.0f);
+    explicit CubeBuilder(Geometry *, qreal depth = 0.0f, qreal size = 1.0f);
     Cube *newCube(const QVector3D &loc = QVector3D()) const;
 private:
     mutable int ix;