Getting errors while conversion of ABAP program into Unicode check

Question

Hi,
I changed the one ABAP program for some requirement and try to save it, it is giving error that the program is not unicode compatible.I set the unicode checks active box  under Attributes and again activate it .It is not allowing to concatenate the two variables which is declared as follows :
constants: c_tab    type x value '09',      "tab character
                  c_cr     type x value '0D'.       "carriage return character
I tried to use field symbols but still giving error (code after change)
constants: c_tab    type x value '09',      "tab character
                  c_cr     type x value '0D'.       "carriage return character
field-symbols : <f_c_tab> type any,
                        <f_c_cr> type  any.
Assign c_tab to <f_c_tab> CASTING type c.
Assign c_cr  to  <f_c_cr>  CASTING type c.
error :The length of "C_TAB" in bytes must be a multiple of the size of a Unicode character (regardless of the size of the Unicode character).
pls guide me so that I can cancatenate the c_tab and c_cr variables

Answer 1

Hi,
Tab Character ----->Data: tab type c value cl_abap_char_utilities=>HORIZONTAL_TAB.
Carraige Return---->Data : cr(2)  type c value cl_abap_char_utilities=>cr_lf..
You will not be able to use the concatenate statement for hexadecimal variables in unciode system.
Try using the above equivalent character variables. In unicode system avoid using hexadecimal variables wherever possible
Regards,
lakshman.