diff options
| -rw-r--r-- | src/corelib/tools/qarraydata.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/corelib/tools/qarraydata.h b/src/corelib/tools/qarraydata.h index a2d9901677..a91dd54262 100644 --- a/src/corelib/tools/qarraydata.h +++ b/src/corelib/tools/qarraydata.h @@ -122,6 +122,12 @@ struct Q_CORE_EXPORT QArrayData static const QArrayData shared_null[2]; static QArrayData *sharedNull() noexcept { return const_cast<QArrayData*>(shared_null); } + static void *sharedNullData() + { + QArrayData *const null = const_cast<QArrayData *>(&shared_null[1]); + Q_ASSERT(sharedNull()->data() == null); + return null; + } }; Q_DECLARE_OPERATORS_FOR_FLAGS(QArrayData::AllocationOptions) @@ -273,6 +279,12 @@ struct QTypedArrayData Q_STATIC_ASSERT(sizeof(QTypedArrayData) == sizeof(QArrayData)); return allocate(/* capacity */ 0); } + + static T *sharedNullData() + { + Q_STATIC_ASSERT(sizeof(QTypedArrayData) == sizeof(QArrayData)); + return static_cast<T *>(QArrayData::sharedNullData()); + } }; template <class T, size_t N> |