1 files changed, 2 insertions, 1 deletions
diff --git a/src/corelib/tools/qvector.h b/src/corelib/tools/qvector.h
index 345ba4b097..30fd7b2865 100644
--- a/src/corelib/tools/qvector.h
+++ b/src/corelib/tools/qvector.h
@@ -306,7 +306,8 @@ private:
     void destruct(T *from, T *to);
     bool isValidIterator(const iterator &i) const
     {
-        return (i <= d->end()) && (d->begin() <= i);
+        const std::less<const T*> less = {};
+        return !less(d->end(), i) && !less(i, d->begin());
     }
     class AlignmentDummy { Data header; T array[1]; };
 };