home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
ADA Programming Guide
/
ADA Programming Guide.iso
/
ada_gnu
/
adainc
/
a-direio.ads
< prev
next >
Wrap
Text File
|
1996-01-30
|
4KB
|
106 lines
------------------------------------------------------------------------------
-- --
-- GNAT RUNTIME COMPONENTS --
-- --
-- A D A . D I R E C T _ I O --
-- --
-- S p e c --
-- --
-- $Revision: 1.6 $ --
-- --
-- This specification is adapted from the Ada Reference Manual for use with --
-- GNAT. In accordance with the copyright of that document, you can freely --
-- copy and modify this specification, provided that if you redistribute a --
-- modified version, any changes that you have made are clearly indicated. --
-- --
------------------------------------------------------------------------------
with Ada.IO_Exceptions;
generic
type Element_Type is private;
package Ada.Direct_IO is
type File_Type is limited private;
type File_Mode is (In_File, Inout_File, Out_File);
type Count is range 0 .. Long_Long_Integer'Last;
subtype Positive_Count is Count range 1 .. Count'Last;
---------------------
-- File Management --
---------------------
procedure Create
(File : in out File_Type;
Mode : in File_Mode := Inout_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;
From : in Positive_Count);
procedure Read
(File : in File_Type;
Item : out Element_Type);
procedure Write
(File : in File_Type;
Item : in Element_Type;
To : in Positive_Count);
procedure Write
(File : in File_Type;
Item : in Element_Type);
procedure Set_Index (File : in File_Type; To : in Positive_Count);
function Index (File : in File_Type) return Positive_Count;
function Size (File : in File_Type) return Count;
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
type File_Control_Block;
type File_Type is access File_Control_Block;
end Ada.Direct_IO;