6 files changed, 6 insertions, 21 deletions
diff --git a/src/gui/math3d/qgenericmatrix.h b/src/gui/math3d/qgenericmatrix.h
index 1131f9b..7bdf70a 100644
--- a/src/gui/math3d/qgenericmatrix.h
+++ b/src/gui/math3d/qgenericmatrix.h
@@ -119,7 +119,9 @@ Q_INLINE_TEMPLATE QGenericMatrix<N, M, T, InnerT>::QGenericMatrix()
 template <int N, int M, typename T, typename InnerT>
 Q_INLINE_TEMPLATE QGenericMatrix<N, M, T, InnerT>::QGenericMatrix(const QGenericMatrix<N, M, T, InnerT>& other)
 {
-    qMemCopy(m, other.m, sizeof(m));
+    for (int col = 0; col < N; ++col)
+        for (int row = 0; row < M; ++row)
+            m[col][row] = other.m[col][row];
 }
 
 template <int N, int M, typename T, typename InnerT>
diff --git a/src/gui/math3d/qmatrix4x4.cpp b/src/gui/math3d/qmatrix4x4.cpp
index b998353..88f58c8 100644
--- a/src/gui/math3d/qmatrix4x4.cpp
+++ b/src/gui/math3d/qmatrix4x4.cpp
@@ -53,10 +53,6 @@ QT_BEGIN_NAMESPACE
     \brief The QMatrix4x4 class represents a 4x4 transformation matrix in 3D space.
     \since 4.6
 
-    The matrix elements are stored internally using the most efficient
-    numeric representation for the underlying hardware: floating-point
-    or fixed-point.
-
     \sa QVector3D, QGenericMatrix
 */
 
@@ -308,8 +304,7 @@ QMatrix4x4::QMatrix4x4(const QTransform& transform)
 // The 4x4 matrix inverse algorithm is based on that described at:
 // http://www.j3d.org/matrix_faq/matrfaq_latest.html#Q24
 // Some optimization has been done to avoid making copies of 3x3
-// sub-matrices, to do calculations in fixed-point where required,
-// and to unroll the loops.
+// sub-matrices and to unroll the loops.
 
 // Calculate the determinant of a 3x3 sub-matrix.
 //     | A B C |
diff --git a/src/gui/math3d/qquaternion.cpp b/src/gui/math3d/qquaternion.cpp
index 9988e2b..d9d4160 100644
--- a/src/gui/math3d/qquaternion.cpp
+++ b/src/gui/math3d/qquaternion.cpp
@@ -55,10 +55,6 @@ QT_BEGIN_NAMESPACE
     Quaternions are used to represent rotations in 3D space, and
     consist of a 3D rotation axis specified by the x, y, and z
     coordinates, and a scalar representing the rotation angle.
-
-    The components of a quaternion are stored internally using the most
-    efficient representation for the GL rendering engine, which will be
-    either floating-point or fixed-point.
 */
 
 /*!
diff --git a/src/gui/math3d/qvector2d.cpp b/src/gui/math3d/qvector2d.cpp
index 9b5d123..b492aa8 100644
--- a/src/gui/math3d/qvector2d.cpp
+++ b/src/gui/math3d/qvector2d.cpp
@@ -57,9 +57,7 @@ QT_BEGIN_NAMESPACE
     The QVector2D class can also be used to represent vertices in 2D space.
     We therefore do not need to provide a separate vertex class.
 
-    The coordinates are stored internally using the most efficient
-    representation for the GL rendering engine, which will be either
-    floating-point or fixed-point.
+    \sa QVector3D, QVector4D, QQuaternion
 */
 
 /*!
diff --git a/src/gui/math3d/qvector3d.cpp b/src/gui/math3d/qvector3d.cpp
index 977152a..95550cd 100644
--- a/src/gui/math3d/qvector3d.cpp
+++ b/src/gui/math3d/qvector3d.cpp
@@ -61,9 +61,7 @@ QT_BEGIN_NAMESPACE
     The QVector3D class can also be used to represent vertices in 3D space.
     We therefore do not need to provide a separate vertex class.
 
-    The coordinates are stored internally using the most efficient
-    representation for the GL rendering engine, which will be either
-    floating-point or fixed-point.
+    \sa QVector2D, QVector4D, QQuaternion
 */
 
 /*!
diff --git a/src/gui/math3d/qvector4d.cpp b/src/gui/math3d/qvector4d.cpp
index a28d2a1..1f7d921 100644
--- a/src/gui/math3d/qvector4d.cpp
+++ b/src/gui/math3d/qvector4d.cpp
@@ -57,10 +57,6 @@ QT_BEGIN_NAMESPACE
     The QVector4D class can also be used to represent vertices in 4D space.
     We therefore do not need to provide a separate vertex class.
 
-    The coordinates are stored internally using the most efficient
-    representation for the GL rendering engine, which will be either
-    floating-point or fixed-point.
-
     \sa QQuaternion, QVector2D, QVector3D
 */