Signature:

      SUBROUTINE h5literate_by_name_f(loc_id, group_name, index_type, &
                order, idx, op, op_data, return_value, hdferr, lapl_id)
        INTEGER(HID_T), INTENT(IN) :: loc_id
        CHARACTER(LEN=*) :: group_name
        INTEGER, INTENT(IN) :: index_type
        INTEGER, INTENT(IN) :: order
        INTEGER(HSIZE_T), INTENT(INOUT) :: idx

        TYPE(C_FUNPTR):: op
        TYPE(C_PTR)   :: op_data

        INTEGER, INTENT(OUT) :: return_value

        INTEGER, INTENT(OUT) :: hdferr
        INTEGER(HID_T), OPTIONAL, INTENT(IN) :: lapl_id

Inputs:

      loc_id     - File or group identifier specifying location of subject group
      group_name - Name of subject group
      index_type - Type of index which determines the order:
                    H5_INDEX_NAME_F      - Alpha-numeric index on name
                    H5_INDEX_CRT_ORDER_F - Index on creation order
      order      - Order within index:
                    H5_ITER_INC_F    - Increasing order
                    H5_ITER_DEC_F    - Decreasing order
                    H5_ITER_NATIVE_F - Fastest available order
      idx        - IN: Iteration position at which to start
      op         - Callback function passing data regarding the link to the
                   calling application
      op_data    - User-defined pointer to data required by the application for
                   its processing of the link

Outputs:

      idx          - OUT: Position at which an interrupted iteration
                              may be restarted
      return_value - Success: The return value of the first operator that
                              returns non-zero, or zero if all members were
                              processed with no operator returning non-zero.

                     Failure: Negative if something goes wrong within the
                              library, or the negative value returned by one
                              of the operators.

      hdferr        - Returns 0 if successful and -1 if fails

Optional parameters:

      lapl_id    - Link access property list