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;