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+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- S Y S T E M . S T R I N G S --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 1995-2012, Free Software Foundation, Inc. --
+-- --
+-- GNAT is free software; you can redistribute it and/or modify it under --
+-- terms of the GNU General Public License as published by the Free Soft- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
+-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
+-- --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+-- Common String access types and related subprograms
+
+-- Note: this package is in the System hierarchy so that it can be directly
+-- be used by other predefined packages. User access to this package is via
+-- a renaming of this package in GNAT.String (file g-string.ads).
+
+pragma Compiler_Unit;
+
+with Ada.Unchecked_Deallocation;
+
+package System.Strings is
+ pragma Preelaborate;
+
+ type String_Access is access all String;
+ -- General purpose string access type. Note that the caller is
+ -- responsible for freeing allocated strings to avoid memory leaks.
+
+ procedure Free is new Ada.Unchecked_Deallocation
+ (Object => String, Name => String_Access);
+ -- This procedure is provided for freeing allocated values of type
+ -- String_Access.
+
+ type String_List is array (Positive range <>) of String_Access;
+ type String_List_Access is access all String_List;
+ -- General purpose array and pointer for list of string accesses
+
+ procedure Free (Arg : in out String_List_Access);
+ -- Frees the given array and all strings that its elements reference,
+ -- and then sets the argument to null. Provided for freeing allocated
+ -- values of this type.
+
+end System.Strings;