Calculate years, months, days & calender days between 2 given dates

Data: w_days  TYPE i,
     P_date type sy-datum.



IF wa_bsik-bukrs = 'SEPC'.
      CALL FUNCTION 'HR_SGPBS_YRS_MTHS_DAYS'
        EXPORTING
          beg_da        = wa_bsik-zfbdt
          end_da        = p_date
        IMPORTING
          no_cal_day    = w_days
        EXCEPTIONS
          dateint_error = 1
          OTHERS        = 2.
    ELSE.
CALL FUNCTION 'HR_SGPBS_YRS_MTHS_DAYS'
          EXPORTING
            beg_da        = wa_bsik-budat
            end_da        = p_date
          IMPORTING
            no_cal_day    = w_days
          EXCEPTIONS
            dateint_error = 1
            OTHERS        = 2.
endif.