------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- A D A . D I R E C T _ I O -- -- -- -- S p e c -- -- -- -- Copyright (C) 1992-2005 Free Software Foundation, Inc. -- -- -- -- This specification is derived from the Ada Reference Manual for use with -- -- GNAT. The copyright notice above, and the license provisions that follow -- -- apply solely to the contents of the part following the private keyword. -- -- -- -- GNAT is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 2, or (at your option) any later ver- -- -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING. If not, write -- -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- -- MA 02111-1307, USA. -- -- -- -- As a special exception, if other files instantiate generics from this -- -- unit, or you link this unit with other files to produce an executable, -- -- this unit does not by itself cause the resulting executable to be -- -- covered by the GNU General Public License. This exception does not -- -- however invalidate any other reasons why the executable file might be -- -- covered by the GNU Public License. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ with Ada.IO_Exceptions; with System.Direct_IO; with Interfaces.C_Streams; generic type Element_Type is private; package Ada.Direct_IO is pragma Compile_Time_Warning (Element_Type'Has_Access_Values, "?Element_Type for Direct_'I'O instance has access values"); type File_Type is limited private; type File_Mode is (In_File, Inout_File, Out_File); -- The following representation clause allows the use of unchecked -- conversion for rapid translation between the File_Mode type -- used in this package and System.File_IO. for File_Mode use (In_File => 0, -- System.File_IO.File_Mode'Pos (In_File) Inout_File => 1, -- System.File_IO.File_Mode'Pos (Inout_File); Out_File => 2); -- System.File_IO.File_Mode'Pos (Out_File) type Count is range 0 .. System.Direct_IO.Count'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_Type is new System.Direct_IO.File_Type; Bytes : constant Interfaces.C_Streams.size_t := Element_Type'Max_Size_In_Storage_Elements; -- Size of an element in storage units pragma Inline (Close); pragma Inline (Create); pragma Inline (Delete); pragma Inline (End_Of_File); pragma Inline (Form); pragma Inline (Index); pragma Inline (Is_Open); pragma Inline (Mode); pragma Inline (Name); pragma Inline (Open); pragma Inline (Read); pragma Inline (Reset); pragma Inline (Set_Index); pragma Inline (Size); pragma Inline (Write); end Ada.Direct_IO;