1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- A D A . S E Q U E N T I A L _ I O . C _ S T R E A M S --
11 -- Copyright (C) 1992-1998 Free Software Foundation, Inc. --
13 -- GNAT is free software; you can redistribute it and/or modify it under --
14 -- terms of the GNU General Public License as published by the Free Soft- --
15 -- ware Foundation; either version 2, or (at your option) any later ver- --
16 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
17 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
18 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
19 -- for more details. You should have received a copy of the GNU General --
20 -- Public License distributed with GNAT; see file COPYING. If not, write --
21 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
22 -- MA 02111-1307, USA. --
24 -- As a special exception, if other files instantiate generics from this --
25 -- unit, or you link this unit with other files to produce an executable, --
26 -- this unit does not by itself cause the resulting executable to be --
27 -- covered by the GNU General Public License. This exception does not --
28 -- however invalidate any other reasons why the executable file might be --
29 -- covered by the GNU Public License. --
31 -- GNAT was originally developed by the GNAT team at New York University. --
32 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
34 ------------------------------------------------------------------------------
36 with Interfaces
.C_Streams
; use Interfaces
.C_Streams
;
38 with System
.File_Control_Block
;
39 with System
.Sequential_IO
;
40 with Unchecked_Conversion
;
42 package body Ada
.Sequential_IO
.C_Streams
is
44 package FIO
renames System
.File_IO
;
45 package FCB
renames System
.File_Control_Block
;
46 package SIO
renames System
.Sequential_IO
;
48 subtype AP
is FCB
.AFCB_Ptr
;
50 function To_FCB
is new Unchecked_Conversion
(File_Mode
, FCB
.File_Mode
);
56 function C_Stream
(F
: File_Type
) return FILEs
is
58 FIO
.Check_File_Open
(AP
(F
));
67 (File
: in out File_Type
;
70 Form
: in String := "")
72 File_Control_Block
: SIO
.Sequential_AFCB
;
75 FIO
.Open
(File_Ptr
=> AP
(File
),
76 Dummy_FCB
=> File_Control_Block
,
77 Mode
=> To_FCB
(Mode
),
83 C_Stream
=> C_Stream
);
86 end Ada
.Sequential_IO
.C_Streams
;