1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
5 -- I N T E R F A C E S . C . S T R I N G S --
11 -- Copyright (C) 1993-2000 Free Software Foundation, Inc. --
13 -- This specification is derived from the Ada Reference Manual for use with --
14 -- GNAT. The copyright notice above, and the license provisions that follow --
15 -- apply solely to the contents of the part following the private keyword. --
17 -- GNAT is free software; you can redistribute it and/or modify it under --
18 -- terms of the GNU General Public License as published by the Free Soft- --
19 -- ware Foundation; either version 2, or (at your option) any later ver- --
20 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
21 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
22 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
23 -- for more details. You should have received a copy of the GNU General --
24 -- Public License distributed with GNAT; see file COPYING. If not, write --
25 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
26 -- MA 02111-1307, USA. --
28 -- As a special exception, if other files instantiate generics from this --
29 -- unit, or you link this unit with other files to produce an executable, --
30 -- this unit does not by itself cause the resulting executable to be --
31 -- covered by the GNU General Public License. This exception does not --
32 -- however invalidate any other reasons why the executable file might be --
33 -- covered by the GNU Public License. --
35 -- GNAT was originally developed by the GNAT team at New York University. --
36 -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
38 ------------------------------------------------------------------------------
40 with System
.Storage_Elements
;
42 package Interfaces
.C
.Strings
is
43 pragma Preelaborate
(Strings
);
45 type char_array_access
is access all char_array
;
47 type chars_ptr
is private;
49 type chars_ptr_array
is array (size_t
range <>) of chars_ptr
;
51 Null_Ptr
: constant chars_ptr
;
54 (Item
: in char_array_access
;
55 Nul_Check
: in Boolean := False)
58 function New_Char_Array
(Chars
: in char_array
) return chars_ptr
;
60 function New_String
(Str
: in String) return chars_ptr
;
62 procedure Free
(Item
: in out chars_ptr
);
64 Dereference_Error
: exception;
66 function Value
(Item
: in chars_ptr
) return char_array
;
73 function Value
(Item
: in chars_ptr
) return String;
80 function Strlen
(Item
: in chars_ptr
) return size_t
;
85 Chars
: in char_array
;
86 Check
: Boolean := True);
92 Check
: in Boolean := True);
94 Update_Error
: exception;
97 type chars_ptr
is new System
.Storage_Elements
.Integer_Address
;
99 Null_Ptr
: constant chars_ptr
:= 0;
100 -- A little cleaner might be To_Integer (System.Null_Address) but this is
101 -- non-preelaborable, and in fact we jolly well know this value is zero.
102 -- Indeed, given the C interface nature, it is probably more correct to
103 -- write zero here (even if Null_Address were non-zero).
105 end Interfaces
.C
.Strings
;