CLASS-METHODS s_new
      IMPORTING content TYPE xstring OPTIONAL
                !offset TYPE numeric DEFAULT 0
                !length TYPE numeric DEFAULT -1
                can_expand TYPE abap_bool DEFAULT abap_true
                can_seek TYPE abap_bool DEFAULT abap_true
                can_read TYPE abap_bool DEFAULT abap_true
                can_write TYPE abap_bool DEFAULT abap_true
      PREFERRED PARAMETER content
      RETURNING VALUE(result) TYPE REF TO /ork/cl_io_memory_stream.

CLASS-METHODS s_new_xstring_pointer
      IMPORTING content TYPE REF TO xstring OPTIONAL
                can_expand TYPE abap_bool DEFAULT abap_true
                can_seek TYPE abap_bool DEFAULT abap_true
                can_read TYPE abap_bool DEFAULT abap_true
                can_write TYPE abap_bool DEFAULT abap_true
      PREFERRED PARAMETER content
      RETURNING VALUE(result) TYPE REF TO /ork/cl_io_memory_stream.

METHODS raise_if_closed.

METHODS expand_or_shrink IMPORTING target_length TYPE int8.

CONSTANTS lc_0 TYPE int8 VALUE 0.

CONSTANTS lc_0 TYPE int8 VALUE 0.

DATA my_pos TYPE int8.

DATA my_buff TYPE REF TO xstring.

DATA end TYPE int8.

DATA len TYPE i.

DATA off LIKE my_pos.