[QMath3D] Add public c-tors that do not initialize the contents

Change-Id: I1a28766451e6750986a239c989e7f30c14479057
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>

12 files changed, 54 insertions, 0 deletions

diff --git a/src/gui/math3d/qgenericmatrix.cpp b/src/gui/math3d/qgenericmatrix.cpp
index 995cf1716c..e9aab9785a 100644
--- a/src/gui/math3d/qgenericmatrix.cpp
+++ b/src/gui/math3d/qgenericmatrix.cpp
@@ -61,6 +61,14 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
+    \fn QGenericMatrix::QGenericMatrix(Qt::Initialization)
+    \since 5.5
+    \internal
+
+    Constructs a NxM matrix without initializing the contents.
+*/
+
+/*!
     \fn QGenericMatrix::QGenericMatrix(const QGenericMatrix<N, M, T>& other)
 
     Constructs a copy of \a other.
diff --git a/src/gui/math3d/qgenericmatrix.h b/src/gui/math3d/qgenericmatrix.h
index 5b45ab7fa1..958fdafa7a 100644
--- a/src/gui/math3d/qgenericmatrix.h
+++ b/src/gui/math3d/qgenericmatrix.h
@@ -46,6 +46,7 @@ class QGenericMatrix
 {
 public:
     QGenericMatrix();
+    explicit QGenericMatrix(Qt::Initialization) {}
     QGenericMatrix(const QGenericMatrix<N, M, T>& other);
     explicit QGenericMatrix(const T *values);
 
diff --git a/src/gui/math3d/qmatrix4x4.cpp b/src/gui/math3d/qmatrix4x4.cpp
index 2fa31b5b14..a02fca25ca 100644
--- a/src/gui/math3d/qmatrix4x4.cpp
+++ b/src/gui/math3d/qmatrix4x4.cpp
@@ -76,6 +76,14 @@ static const float inv_dist_to_plane = 1.0f / 1024.0f;
 */
 
 /*!
+    \fn QMatrix4x4::QMatrix4x4(Qt::Initialization)
+    \since 5.5
+    \internal
+
+    Constructs a matrix without initializing the contents.
+*/
+
+/*!
     Constructs a matrix from the given 16 floating-point \a values.
     The contents of the array \a values is assumed to be in
     row-major order.
diff --git a/src/gui/math3d/qmatrix4x4.h b/src/gui/math3d/qmatrix4x4.h
index 74329b7cdd..1e7202ad73 100644
--- a/src/gui/math3d/qmatrix4x4.h
+++ b/src/gui/math3d/qmatrix4x4.h
@@ -53,6 +53,7 @@ class Q_GUI_EXPORT QMatrix4x4
 {
 public:
     inline QMatrix4x4() { setToIdentity(); }
+    explicit QMatrix4x4(Qt::Initialization) {}
     explicit QMatrix4x4(const float *values);
     inline QMatrix4x4(float m11, float m12, float m13, float m14,
                       float m21, float m22, float m23, float m24,
diff --git a/src/gui/math3d/qquaternion.cpp b/src/gui/math3d/qquaternion.cpp
index 23409189ac..eba5bb5976 100644
--- a/src/gui/math3d/qquaternion.cpp
+++ b/src/gui/math3d/qquaternion.cpp
@@ -63,6 +63,14 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
+    \fn QQuaternion::QQuaternion(Qt::Initialization)
+    \since 5.5
+    \internal
+
+    Constructs a quaternion without initializing the contents.
+*/
+
+/*!
     \fn QQuaternion::QQuaternion(float scalar, float xpos, float ypos, float zpos)
 
     Constructs a quaternion with the vector (\a xpos, \a ypos, \a zpos)
diff --git a/src/gui/math3d/qquaternion.h b/src/gui/math3d/qquaternion.h
index 2bef926b76..1f53970c9d 100644
--- a/src/gui/math3d/qquaternion.h
+++ b/src/gui/math3d/qquaternion.h
@@ -49,6 +49,7 @@ class Q_GUI_EXPORT QQuaternion
 {
 public:
     QQuaternion();
+    explicit QQuaternion(Qt::Initialization) {}
     QQuaternion(float scalar, float xpos, float ypos, float zpos);
 #ifndef QT_NO_VECTOR3D
     QQuaternion(float scalar, const QVector3D& vector);
diff --git a/src/gui/math3d/qvector2d.cpp b/src/gui/math3d/qvector2d.cpp
index cf8ff25661..987a502280 100644
--- a/src/gui/math3d/qvector2d.cpp
+++ b/src/gui/math3d/qvector2d.cpp
@@ -64,6 +64,14 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
+    \fn QVector2D::QVector2D(Qt::Initialization)
+    \since 5.5
+    \internal
+
+    Constructs a vector without initializing the contents.
+*/
+
+/*!
     \fn QVector2D::QVector2D(float xpos, float ypos)
 
     Constructs a vector with coordinates (\a xpos, \a ypos).
diff --git a/src/gui/math3d/qvector2d.h b/src/gui/math3d/qvector2d.h
index ef69c80afe..abdd86f683 100644
--- a/src/gui/math3d/qvector2d.h
+++ b/src/gui/math3d/qvector2d.h
@@ -50,6 +50,7 @@ class Q_GUI_EXPORT QVector2D
 {
 public:
     Q_DECL_CONSTEXPR QVector2D();
+    explicit QVector2D(Qt::Initialization) {}
     Q_DECL_CONSTEXPR QVector2D(float xpos, float ypos);
     Q_DECL_CONSTEXPR explicit QVector2D(const QPoint& point);
     Q_DECL_CONSTEXPR explicit QVector2D(const QPointF& point);
diff --git a/src/gui/math3d/qvector3d.cpp b/src/gui/math3d/qvector3d.cpp
index e3744d497d..2f4ecb9864 100644
--- a/src/gui/math3d/qvector3d.cpp
+++ b/src/gui/math3d/qvector3d.cpp
@@ -69,6 +69,14 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
+    \fn QVector3D::QVector3D(Qt::Initialization)
+    \since 5.5
+    \internal
+
+    Constructs a vector without initializing the contents.
+*/
+
+/*!
     \fn QVector3D::QVector3D(float xpos, float ypos, float zpos)
 
     Constructs a vector with coordinates (\a xpos, \a ypos, \a zpos).
diff --git a/src/gui/math3d/qvector3d.h b/src/gui/math3d/qvector3d.h
index e24b38444a..d864a6055c 100644
--- a/src/gui/math3d/qvector3d.h
+++ b/src/gui/math3d/qvector3d.h
@@ -51,6 +51,7 @@ class Q_GUI_EXPORT QVector3D
 {
 public:
     Q_DECL_CONSTEXPR QVector3D();
+    explicit QVector3D(Qt::Initialization) {}
     Q_DECL_CONSTEXPR QVector3D(float xpos, float ypos, float zpos) : xp(xpos), yp(ypos), zp(zpos) {}
 
     Q_DECL_CONSTEXPR explicit QVector3D(const QPoint& point);
diff --git a/src/gui/math3d/qvector4d.cpp b/src/gui/math3d/qvector4d.cpp
index b6d239e5ea..93db3a7969 100644
--- a/src/gui/math3d/qvector4d.cpp
+++ b/src/gui/math3d/qvector4d.cpp
@@ -63,6 +63,14 @@ QT_BEGIN_NAMESPACE
 */
 
 /*!
+    \fn QVector4D::QVector4D(Qt::Initialization)
+    \since 5.5
+    \internal
+
+    Constructs a vector without initializing the contents.
+*/
+
+/*!
     \fn QVector4D::QVector4D(float xpos, float ypos, float zpos, float wpos)
 
     Constructs a vector with coordinates (\a xpos, \a ypos, \a zpos, \a wpos).
diff --git a/src/gui/math3d/qvector4d.h b/src/gui/math3d/qvector4d.h
index 1864b58d7c..bfa3eb91c7 100644
--- a/src/gui/math3d/qvector4d.h
+++ b/src/gui/math3d/qvector4d.h
@@ -50,6 +50,7 @@ class Q_GUI_EXPORT QVector4D
 {
 public:
     Q_DECL_CONSTEXPR QVector4D();
+    explicit QVector4D(Qt::Initialization) {}
     Q_DECL_CONSTEXPR QVector4D(float xpos, float ypos, float zpos, float wpos);
     Q_DECL_CONSTEXPR explicit QVector4D(const QPoint& point);
     Q_DECL_CONSTEXPR explicit QVector4D(const QPointF& point);