Add operator-> to the key-value iterator for QHash and QMap

This patch adds the arrow operator to the stl-like key-value
iterator (QKeyValueIterator) for QMap and QHash.

This allows using normal member access syntax it->first and it->second
instead of having to use (*it).first and (*it).second.

[ChangeLog][QtCore][Containers] Added operator-> to the key-value
iterator for QHash/QMap.

Change-Id: I9cfa6480784ebce147fcfbf37fec5ad0080e2899
Reviewed-by: Vitaly Fanaskov <vitaly.fanaskov@qt.io>

1 files changed, 11 insertions, 2 deletions

diff --git a/src/corelib/tools/qiterator.qdoc b/src/corelib/tools/qiterator.qdoc
index 3531fb202c..ed39fe28c3 100644
--- a/src/corelib/tools/qiterator.qdoc
+++ b/src/corelib/tools/qiterator.qdoc
@@ -57,7 +57,7 @@
     \internal
 */
 
-/*! \typedef QKeyValueIterator::pointer
+/*! \struct QKeyValueIterator::pointer
     \internal
 */
 
@@ -75,11 +75,20 @@
     Constructs a QKeyValueIterator on top of \a o.
 */
 
-/*! \fn template<typename Key, typename T, class Iterator> const T &QKeyValueIterator<Key, T, Iterator>::operator*() const
+/*! \fn template<typename Key, typename T, class Iterator> std::pair<Key, T> QKeyValueIterator<Key, T, Iterator>::operator*() const
 
     Returns the current entry as a pair.
 */
 
+/*! \fn template<typename Key, typename T, class Iterator> pointer QKeyValueIterator<Key, T, Iterator>::operator->() const
+
+    Returns the current entry as a pointer-like object to the pair.
+
+    \since 5.15
+
+    \sa operator*()
+*/
+
 /*! \fn template<typename Key, typename T, class Iterator> bool operator==(QKeyValueIterator<Key, T, Iterator> lhs, QKeyValueIterator<Key, T, Iterator> rhs)
     \relates QKeyValueIterator