QVector: add a construction from QArrayDataPointerRef

To be used to build QVectors out of Q_ARRAY_LITERALs.

Change-Id: I6105fd1f2d13f6ce923b79276b4aa7a7f5eff193
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
 
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>

src/corelib/tools/qvector.h

@@ -80,6 +80,7 @@ public:
     QVector<T> &operator=(std::initializer_list<T> args);
     template <typename InputIterator, QtPrivate::IfIsInputIterator<InputIterator> = true>
     inline QVector(InputIterator first, InputIterator last);
+    explicit QVector(QArrayDataPointerRef<T> ref) noexcept : d(ref.ptr) {}
 
     bool operator==(const QVector<T> &v) const;
     inline bool operator!=(const QVector<T> &v) const { return !(*this == v); }

src/corelib/tools/qvector.qdoc

@@ -251,6 +251,11 @@
     The value type of \c InputIterator must be convertible to \c T.
 */
 
+/*!
+    \fn template <typename T> QVector<T>::QVector(QArrayDataPointerRef<T> ref)
+    \internal
+*/
+
 /*! \fn template <typename T> QVector<T>::~QVector()
 
     Destroys the vector.