------------------------------------------------------------------------------
-- --
--- GNAT RUNTIME COMPONENTS --
+-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . D I R E C T _ I O --
-- --
-- B o d y --
-- --
--- Copyright (C) 1992-2003 Free Software Foundation, Inc. --
+-- Copyright (C) 1992-2006, Free Software Foundation, Inc. --
-- --
-- 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- --
-- 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. --
+-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, 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, --
Zeroes : constant System.Storage_Elements.Storage_Array :=
(1 .. System.Storage_Elements.Storage_Offset (Bytes) => 0);
- -- Buffer used to fill out partial records.
+ -- Buffer used to fill out partial records
package FCB renames System.File_Control_Block;
package FIO renames System.File_IO;
procedure Create
(File : in out File_Type;
- Mode : in File_Mode := Inout_File;
- Name : in String := "";
- Form : in String := "")
+ Mode : File_Mode := Inout_File;
+ Name : String := "";
+ Form : String := "")
is
begin
DIO.Create (FP (File), To_FCB (Mode), Name, Form);
-- End_Of_File --
-----------------
- function End_Of_File (File : in File_Type) return Boolean is
+ function End_Of_File (File : File_Type) return Boolean is
begin
return DIO.End_Of_File (FP (File));
end End_Of_File;
-- Form --
----------
- function Form (File : in File_Type) return String is
+ function Form (File : File_Type) return String is
begin
return FIO.Form (AP (File));
end Form;
-- Index --
-----------
- function Index (File : in File_Type) return Positive_Count is
+ function Index (File : File_Type) return Positive_Count is
begin
return Positive_Count (DIO.Index (FP (File)));
end Index;
-- Is_Open --
-------------
- function Is_Open (File : in File_Type) return Boolean is
+ function Is_Open (File : File_Type) return Boolean is
begin
return FIO.Is_Open (AP (File));
end Is_Open;
-- Mode --
----------
- function Mode (File : in File_Type) return File_Mode is
+ function Mode (File : File_Type) return File_Mode is
begin
return To_DIO (FIO.Mode (AP (File)));
end Mode;
-- Name --
----------
- function Name (File : in File_Type) return String is
+ function Name (File : File_Type) return String is
begin
return FIO.Name (AP (File));
end Name;
procedure Open
(File : in out File_Type;
- Mode : in File_Mode;
- Name : in String;
- Form : in String := "")
+ Mode : File_Mode;
+ Name : String;
+ Form : String := "")
is
begin
DIO.Open (FP (File), To_FCB (Mode), Name, Form);
----------
procedure Read
- (File : in File_Type;
+ (File : File_Type;
Item : out Element_Type;
- From : in Positive_Count)
+ From : Positive_Count)
is
begin
-- For a non-constrained variant record type, we read into an
-- intermediate buffer, since we may have the case of discriminated
-- records where a discriminant check is required, and we may need
- -- to assign only part of the record buffer originally written
+ -- to assign only part of the record buffer originally written.
+ -- Note: we have to turn warnings on/off because this use of
+ -- the Constrained attribute is an obsolescent feature.
+
+ pragma Warnings (Off);
if not Element_Type'Constrained then
+ pragma Warnings (On);
+
declare
Buf : Element_Type;
end if;
end Read;
- procedure Read (File : in File_Type; Item : out Element_Type) is
+ procedure Read (File : File_Type; Item : out Element_Type) is
begin
-- Same processing for unconstrained case as above
+ -- Note: we have to turn warnings on/off because this use of
+ -- the Constrained attribute is an obsolescent feature.
+
+ pragma Warnings (Off);
if not Element_Type'Constrained then
+ pragma Warnings (On);
+
declare
Buf : Element_Type;
-- Reset --
-----------
- procedure Reset (File : in out File_Type; Mode : in File_Mode) is
+ procedure Reset (File : in out File_Type; Mode : File_Mode) is
begin
DIO.Reset (FP (File), To_FCB (Mode));
end Reset;
-- Set_Index --
---------------
- procedure Set_Index (File : in File_Type; To : in Positive_Count) is
+ procedure Set_Index (File : File_Type; To : Positive_Count) is
begin
DIO.Set_Index (FP (File), DPCount (To));
end Set_Index;
-- Size --
----------
- function Size (File : in File_Type) return Count is
+ function Size (File : File_Type) return Count is
begin
return Count (DIO.Size (FP (File)));
end Size;
-----------
procedure Write
- (File : in File_Type;
- Item : in Element_Type;
- To : in Positive_Count)
+ (File : File_Type;
+ Item : Element_Type;
+ To : Positive_Count)
is
begin
DIO.Set_Index (FP (File), DPCount (To));
DIO.Write (FP (File), Item'Address, Item'Size / SU, Zeroes);
end Write;
- procedure Write (File : in File_Type; Item : in Element_Type) is
+ procedure Write (File : File_Type; Item : Element_Type) is
begin
DIO.Write (FP (File), Item'Address, Item'Size / SU, Zeroes);
end Write;
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