Problem in using function module parameters in abap program

Question

i want to use the coding present in on one of the function module 'AS_API_INFOSTRUC_FIND'  i got the problem using the function module parameters in my abap program.
these are the parameters inside fm
""Lokale Schnittstelle:
*"       IMPORTING
*"             VALUE(I_FIELDCAT) TYPE  AIND_FCAT
*"             VALUE(I_FIELDS) TYPE  TABLE OPTIONAL
*"             VALUE(I_OBLIGATORY_FIELDS) TYPE  TABLE OPTIONAL
*"       EXPORTING
*"             VALUE(E_INFOSTRUC) TYPE  AIND_DESC
*"             REFERENCE(E_ALL_FIELDS) TYPE  TABLE
*"             REFERENCE(E_MATCHING_FIELDS) TYPE  TABLE
*"       EXCEPTIONS
*"              NO_INFOSTRUC_FOUND
i want to declare     E_ALL_FIELDS  parameter    in my abap program,
i have declared as 
data: E_ALL_FIELDS TYPE TABLE.
but   the system throws error that
'type of field 'TABLE'  is generic .no table line has been specified'.
i want to use it in my abap program how can i declare in my abap program .

Answer 1

You have to declare the table using any specific type.
The type table in the FM is generic so you can pass any type you need.
For instance:
TYPES: BEGIN OF ty_fields,
         fieldname LIKE dfies-fieldname,
       END OF ty_fields,
TYPES: TY_T_GLU1              LIKE GLU1                     OCCURS 0,
       ty_t_fields            type ty_fields                occurs 0.
  DATA: lt_info_struct_fields TYPE ty_t_fields WITH HEADER LINE,
        lt_matching_fields    TYPE ty_t_fields WITH HEADER LINE.
    CALL FUNCTION 'AS_API_INFOSTRUC_FIND'
         EXPORTING
              i_fieldcat         = ft_fieldcat-fieldcat
              i_fields           = ft_fields_filled[]
         IMPORTING
              e_infostruc        = lv_info_struct_name
              e_all_fields       = lt_info_struct_fields[]
              e_matching_fields  = lt_matching_fields[]
         EXCEPTIONS
              no_infostruc_found = 1.