1 ------------------------------------------------------------------------------
3 -- GNAT COMPILER COMPONENTS --
5 -- I N T E R F A C E S . C . S T R I N G S --
9 -- Copyright (C) 1993-2009, Free Software Foundation, Inc. --
11 -- This specification is derived from the Ada Reference Manual for use with --
12 -- GNAT. The copyright notice above, and the license provisions that follow --
13 -- apply solely to the contents of the part following the private keyword. --
15 -- GNAT is free software; you can redistribute it and/or modify it under --
16 -- terms of the GNU General Public License as published by the Free Soft- --
17 -- ware Foundation; either version 3, or (at your option) any later ver- --
18 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
19 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
20 -- or FITNESS FOR A PARTICULAR PURPOSE. --
22 -- As a special exception under Section 7 of GPL version 3, you are granted --
23 -- additional permissions described in the GCC Runtime Library Exception, --
24 -- version 3.1, as published by the Free Software Foundation. --
26 -- You should have received a copy of the GNU General Public License and --
27 -- a copy of the GCC Runtime Library Exception along with this program; --
28 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
29 -- <http://www.gnu.org/licenses/>. --
31 -- GNAT was originally developed by the GNAT team at New York University. --
32 -- Extensive contributions were provided by Ada Core Technologies Inc. --
34 ------------------------------------------------------------------------------
36 package Interfaces.C.Strings is
39 type char_array_access is access all char_array;
41 pragma Warnings (Off);
42 pragma No_Strict_Aliasing (char_array_access);
44 -- Since this type is used for external interfacing, with the pointer
45 -- coming from who knows where, it seems a good idea to turn off any
46 -- strict aliasing assumptions for this type. We turn off warnings for
47 -- this pragma to deal with being compiled with an earlier GNAT version
48 -- that does not recognize this pragma.
50 type chars_ptr is private;
52 type chars_ptr_array is array (size_t range <>) of chars_ptr;
54 Null_Ptr : constant chars_ptr;
57 (Item : char_array_access;
58 Nul_Check : Boolean := False) return chars_ptr;
60 function New_Char_Array (Chars : char_array) return chars_ptr;
62 function New_String (Str : String) return chars_ptr;
64 procedure Free (Item : in out chars_ptr);
66 Dereference_Error : exception;
68 function Value (Item : chars_ptr) return char_array;
72 Length : size_t) return char_array;
74 function Value (Item : chars_ptr) return String;
78 Length : size_t) return String;
80 function Strlen (Item : chars_ptr) return size_t;
86 Check : Boolean := True);
92 Check : Boolean := True);
94 Update_Error : exception;
97 type chars_ptr is access all Character;
98 pragma Convention (C, chars_ptr);
100 pragma No_Strict_Aliasing (chars_ptr);
101 -- Since this type is used for external interfacing, with the pointer
102 -- coming from who knows where, it seems a good idea to turn off any
103 -- strict aliasing assumptions for this type.
105 Null_Ptr : constant chars_ptr := null;
106 end Interfaces.C.Strings;