Improve implicit shared documentation a bit

Task-number: QTBUG-27061

Change-Id: I66e000a9f59fda3654066013e6e78c3ba6fd27fe
Reviewed-by: Mitch Curtis <mitch.curtis@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/corelib/tools/qlist.cpp b/src/corelib/tools/qlist.cpp
index d8ccf2cc43..0811c3793e 100644
--- a/src/corelib/tools/qlist.cpp
+++ b/src/corelib/tools/qlist.cpp
@@ -1292,6 +1292,11 @@ void **QListData::erase(void **xi)
     iterators over a long period of time, we recommend that you use
     QLinkedList rather than QList.
 
+    \warning Iterators on implicitly shared containers do not work
+    exactly like STL-iterators. You should avoid copying a container
+    while iterators are active on that container. For more information,
+    read \l{Implicit sharing iterator problem}.
+
     \sa QList::const_iterator, QMutableListIterator
 */
 
@@ -1542,6 +1547,11 @@ void **QListData::erase(void **xi)
     iterators over a long period of time, we recommend that you use
     QLinkedList rather than QList.
 
+    \warning Iterators on implicitly shared containers do not work
+    exactly like STL-iterators. You should avoid copying a container
+    while iterators are active on that container. For more information,
+    read \l{Implicit sharing iterator problem}.
+
     \sa QList::iterator, QListIterator
 */