Run Time structure identification of a variable.

Hi Experts,
I have a requirement where i need to identify the structure type assigned to the variable at run time. i.e. if i have the variable name at run time i shold be able to find the structure type assigned in that program.
Please help. let me know if you need any further information.
BR,
Raj.

Check this:
TYPE-POOLS: abap.
DATA: gc_mara TYPE mara,
      gc_marc TYPE marc.
PERFORM check_struct USING gc_mara.
PERFORM check_struct USING gc_marc.
*&      Form check_struct
*       text
*      -->P_STRUCT   text
FORM check_struct USING p_struct TYPE any.
DATA: lcl_struc TYPE REF TO cl_abap_structdescr,
        lv_struc_name TYPE abap_abstypename.
lcl_struc ?= cl_abap_structdescr=>describe_by_data( p_struct ).
CHECK lcl_struc IS BOUND.
* Get the DDIC structure of the formal param P_STRUC
lv_struc_name = lcl_struc->absolute_name. "\TYPE=<DDIC Structure>
WRITE: / lv_struc_name.
ENDFORM.                    "check_struct
BR,
Suhas

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