| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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 -- |
| -- -- |
| -- $Revision: 1.8 $ |
| -- -- |
| -- Copyright (C) 1993-2000 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, 59 Temple Place - Suite 330, Boston, -- |
| -- MA 02111-1307, 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. -- |
| -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| with System.Storage_Elements; |
| |
| package Interfaces.C.Strings is |
| pragma Preelaborate (Strings); |
| |
| type char_array_access is access all char_array; |
| |
| 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 : in char_array_access; |
| Nul_Check : in Boolean := False) |
| return chars_ptr; |
| |
| function New_Char_Array (Chars : in char_array) return chars_ptr; |
| |
| function New_String (Str : in String) return chars_ptr; |
| |
| procedure Free (Item : in out chars_ptr); |
| |
| Dereference_Error : exception; |
| |
| function Value (Item : in chars_ptr) return char_array; |
| |
| function Value |
| (Item : in chars_ptr; |
| Length : in size_t) |
| return char_array; |
| |
| function Value (Item : in chars_ptr) return String; |
| |
| function Value |
| (Item : in chars_ptr; |
| Length : in size_t) |
| return String; |
| |
| function Strlen (Item : in chars_ptr) return size_t; |
| |
| procedure Update |
| (Item : in chars_ptr; |
| Offset : in size_t; |
| Chars : in char_array; |
| Check : Boolean := True); |
| |
| procedure Update |
| (Item : in chars_ptr; |
| Offset : in size_t; |
| Str : in String; |
| Check : in Boolean := True); |
| |
| Update_Error : exception; |
| |
| private |
| type chars_ptr is new System.Storage_Elements.Integer_Address; |
| |
| Null_Ptr : constant chars_ptr := 0; |
| -- A little cleaner might be To_Integer (System.Null_Address) but this is |
| -- non-preelaborable, and in fact we jolly well know this value is zero. |
| -- Indeed, given the C interface nature, it is probably more correct to |
| -- write zero here (even if Null_Address were non-zero). |
| |
| end Interfaces.C.Strings; |
