Get Dates Between Two Dates..

Funciton : DAY_ATTRIBUTES_GET

  DATA : gt_dates LIKE casdayattr OCCURS 0 WITH HEADER LINE .
  REFRESH gt_dates.
  CALL FUNCTION 'DAY_ATTRIBUTES_GET'
    EXPORTING
*     FACTORY_CALENDAR                 = ' '
*     HOLIDAY_CALENDAR                 = ' '
      date_from                        = gv_begda
      date_to                          = gv_endda
*     LANGUAGE                         = SY-LANGU
*   IMPORTING
*     YEAR_OF_VALID_FROM               =
*     YEAR_OF_VALID_TO                 =
*     RETURNCODE                       =
    TABLES
      day_attributes                   = gt_dates
   EXCEPTIONS
     factory_calendar_not_found       = 1
     holiday_calendar_not_found       = 2
     date_has_invalid_format          = 3
     date_inconsistency               = 4
     OTHERS                           = 5
            .