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+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- I N T E R F A C E S . C . S T R I N G S --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 1993-2011, Free Software Foundation, Inc. --
+-- --
+-- This specification is derived from the Ada Reference Manual for use with --
+-- GNAT. The copyright notice above, and the license provisions that follow --
+-- apply solely to the contents of the part following the private keyword. --
+-- --
+-- 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. --
+-- --
+------------------------------------------------------------------------------
+
+package Interfaces.C.Strings is
+ pragma Preelaborate;
+
+ type char_array_access is access all char_array;
+ for char_array_access'Size use System.Parameters.ptr_bits;
+
+ pragma No_Strict_Aliasing (char_array_access);
+ -- Since this type is used for external interfacing, with the pointer
+ -- coming from who knows where, it seems a good idea to turn off any
+ -- strict aliasing assumptions for this type.
+
+ type chars_ptr is private;
+ pragma Preelaborable_Initialization (chars_ptr);
+
+ type chars_ptr_array is array (size_t range <>) of aliased chars_ptr;
+
+ Null_Ptr : constant chars_ptr;
+
+ function To_Chars_Ptr
+ (Item : char_array_access;
+ Nul_Check : Boolean := False) return chars_ptr;
+
+ function New_Char_Array (Chars : char_array) return chars_ptr;
+
+ function New_String (Str : String) return chars_ptr;
+
+ procedure Free (Item : in out chars_ptr);
+
+ Dereference_Error : exception;
+
+ function Value (Item : chars_ptr) return char_array;
+
+ function Value
+ (Item : chars_ptr;
+ Length : size_t) return char_array;
+
+ function Value (Item : chars_ptr) return String;
+
+ function Value
+ (Item : chars_ptr;
+ Length : size_t) return String;
+
+ function Strlen (Item : chars_ptr) return size_t;
+
+ procedure Update
+ (Item : chars_ptr;
+ Offset : size_t;
+ Chars : char_array;
+ Check : Boolean := True);
+
+ procedure Update
+ (Item : chars_ptr;
+ Offset : size_t;
+ Str : String;
+ Check : Boolean := True);
+
+ Update_Error : exception;
+
+private
+ type chars_ptr is access all Character;
+ for chars_ptr'Size use System.Parameters.ptr_bits;
+
+ pragma No_Strict_Aliasing (chars_ptr);
+ -- Since this type is used for external interfacing, with the pointer
+ -- coming from who knows where, it seems a good idea to turn off any
+ -- strict aliasing assumptions for this type.
+
+ Null_Ptr : constant chars_ptr := null;
+end Interfaces.C.Strings;