constexpr unsigned DT_FLAG_DESTROYED = 0x0001; /**< user destroyed but some other layers still have a reference */
constexpr unsigned DT_FLAG_COMMITED = 0x0002; /**< ready to be used for a send/recv operation */
constexpr unsigned DT_FLAG_CONTIGUOUS = 0x0004; /**< contiguous datatype */
constexpr unsigned DT_FLAG_DESTROYED = 0x0001; /**< user destroyed but some other layers still have a reference */
constexpr unsigned DT_FLAG_COMMITED = 0x0002; /**< ready to be used for a send/recv operation */
constexpr unsigned DT_FLAG_CONTIGUOUS = 0x0004; /**< contiguous datatype */