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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) 1993-2007, 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 2, 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. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
-- Boston, MA 02110-1301, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- 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;
pragma Warnings (Off);
pragma No_Strict_Aliasing (char_array_access);
pragma Warnings (On);
-- 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. We turn off warnings for
-- this pragma to deal with being compiled with an earlier GNAT version
-- that does not recognize this pragma.
type chars_ptr is private;
type chars_ptr_array is array (size_t range <>) of 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;
pragma Convention (C, chars_ptr);
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;
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