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A.8.1 The Generic Package Sequential_IO

Static Semantics

The generic library package Sequential_IO has the following declaration:

   
       with Ada.IO_Exceptions;
       generic
          type Element_Type(<>) is private;
       package Ada.Sequential_IO is

          type File_Type is limited private;

          type File_Mode is (In_File, Out_File, Append_File);

          -- File management

          procedure Create(File : in out File_Type;
                           Mode : in File_Mode := Out_File;
                           Name : in String := "";
                           Form : in String := "");

          procedure Open  (File : in out File_Type;
                           Mode : in File_Mode;
                           Name : in String;
                           Form : in String := "");

          procedure Close (File : in out File_Type);
          procedure Delete(File : in out File_Type);
          procedure Reset (File : in out File_Type; Mode : in File_Mode);
          procedure Reset (File : in out File_Type);

          function Mode   (File : in File_Type) return File_Mode;
          function Name   (File : in File_Type) return String;
          function Form   (File : in File_Type) return String;

          function Is_Open(File : in File_Type) return Boolean;

          -- Input and output operations

          procedure Read  (File : in File_Type; Item : out Element_Type);
          procedure Write (File : in File_Type; Item : in Element_Type);

          function End_Of_File(File : in File_Type) return Boolean;

          -- Exceptions

          Status_Error : exception renames IO_Exceptions.Status_Error;
          Mode_Error   : exception renames IO_Exceptions.Mode_Error;
          Name_Error   : exception renames IO_Exceptions.Name_Error;
          Use_Error    : exception renames IO_Exceptions.Use_Error;
          Device_Error : exception renames IO_Exceptions.Device_Error;
          End_Error    : exception renames IO_Exceptions.End_Error;
          Data_Error   : exception renames IO_Exceptions.Data_Error;

       private
          ... -- not specified by the language
       end Ada.Sequential_IO;

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