QByteArray(QByteArrayDataPtr dd) constructor warning C4946: reinterpret_cast used between related classes: 'QArrayData' and 'QTypedArrayData<T>'

The inline QByteArray(QByteArrayDataPtr dd) constructor defined in QtCore/qbytearray.h does:

reinterpret_cast<Data *>(dd.ptr)

As you know, reinterpret_cast is a rather "brute force" way of casting. In this particular case, it may also cause a compiler warning, when using Visual C++:

warning C4946: reinterpret_cast used between related classes: 'QArrayData' and 'QTypedArrayData<T>'

So in this case, it seems more appropriate to do static_cast.