------------------------------------------------------------------------------ -- -- -- 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) 1993-2000 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. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ 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;