File : s-string.ads
1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT COMPILER COMPONENTS --
4 -- --
5 -- S Y S T E M . S T R I N G S --
6 -- --
7 -- S p e c --
8 -- --
9 -- Copyright (C) 1995-2013, Free Software Foundation, Inc. --
10 -- --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
17 -- --
18 -- --
19 -- --
20 -- --
21 -- --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
26 -- --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
29 -- --
30 ------------------------------------------------------------------------------
31
32 -- Common String access types and related subprograms
33
34 -- Note: this package is in the System hierarchy so that it can be directly
35 -- be used by other predefined packages. User access to this package is via
36 -- a renaming of this package in GNAT.String (file g-string.ads).
37
38 pragma Compiler_Unit_Warning;
39
40 with Ada.Unchecked_Deallocation;
41
42 package System.Strings is
43 pragma Preelaborate;
44
45 type String_Access is access all String;
46 -- General purpose string access type. Note that the caller is
47 -- responsible for freeing allocated strings to avoid memory leaks.
48
49 procedure Free is new Ada.Unchecked_Deallocation
50 (Object => String, Name => String_Access);
51 -- This procedure is provided for freeing allocated values of type
52 -- String_Access.
53
54 type String_List is array (Positive range <>) of String_Access;
55 type String_List_Access is access all String_List;
56 -- General purpose array and pointer for list of string accesses
57
58 procedure Free (Arg : in out String_List_Access);
59 -- Frees the given array and all strings that its elements reference,
60 -- and then sets the argument to null. Provided for freeing allocated
61 -- values of this type.
62
63 end System.Strings;