1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- A D A . D I R E C T _ I O . C _ S T R E A M S --
10 -- Copyright (C) 1992-1998 Free Software Foundation, Inc. --
12 -- GNAT is free software; you can redistribute it and/or modify it under --
13 -- terms of the GNU General Public License as published by the Free Soft- --
14 -- ware Foundation; either version 2, or (at your option) any later ver- --
15 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
16 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
17 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
18 -- for more details. You should have received a copy of the GNU General --
19 -- Public License distributed with GNAT; see file COPYING. If not, write --
20 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
21 -- MA 02111-1307, USA. --
23 -- As a special exception, if other files instantiate generics from this --
24 -- unit, or you link this unit with other files to produce an executable, --
25 -- this unit does not by itself cause the resulting executable to be --
26 -- covered by the GNU General Public License. This exception does not --
27 -- however invalidate any other reasons why the executable file might be --
28 -- covered by the GNU Public License. --
30 -- GNAT was originally developed by the GNAT team at New York University. --
31 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
33 ------------------------------------------------------------------------------
35 with Interfaces.C_Streams; use Interfaces.C_Streams;
37 with System.File_Control_Block;
38 with System.Direct_IO;
39 with Unchecked_Conversion;
41 package body Ada.Direct_IO.C_Streams is
43 package FIO renames System.File_IO;
44 package FCB renames System.File_Control_Block;
45 package DIO renames System.Direct_IO;
47 subtype AP is FCB.AFCB_Ptr;
49 function To_FCB is new Unchecked_Conversion (File_Mode, FCB.File_Mode);
55 function C_Stream (F : File_Type) return FILEs is
57 FIO.Check_File_Open (AP (F));
66 (File : in out File_Type;
69 Form : in String := "")
71 File_Control_Block : DIO.Direct_AFCB;
74 FIO.Open (File_Ptr => AP (File),
75 Dummy_FCB => File_Control_Block,
76 Mode => To_FCB (Mode),
82 C_Stream => C_Stream);
87 end Ada.Direct_IO.C_Streams;