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------------------------------------------------------------------------------
-- --
-- FLORIST (FSU Implementation of POSIX.5) COMPONENTS --
-- --
-- P O S I X . C --
-- --
-- B o d y --
-- --
-- --
-- Copyright (C) 1996-1997 Florida State University --
-- Copyright (C) 1998-2014, AdaCore --
-- --
-- This file is a component of FLORIST, an implementation of an Ada API --
-- for the POSIX OS services, for use with the GNAT Ada compiler and --
-- the FSU Gnu Ada Runtime Library (GNARL). The interface is intended --
-- to be close to that specified in IEEE STD 1003.5: 1990 and IEEE STD --
-- 1003.5b: 1996. --
-- --
-- FLORIST is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the --
-- Free Software Foundation; either version 2, or (at your option) any --
-- later version. FLORIST is distributed in the hope that it will be --
-- useful, but WITHOUT 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 GNARL; see --
-- file COPYING. If not, write to the Free Software Foundation, 59 --
-- Temple Place - Suite 330, Boston, MA 02111-1307, USA. --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
-- --
------------------------------------------------------------------------------
with System.Storage_Elements;
package body POSIX.C is
use System.Storage_Elements;
---------------
-- Advance --
---------------
procedure Advance (Ptr : in out char_ptr) is
begin
Ptr := To_Ptr (To_Address (Ptr) + char'Size / System.Storage_Unit);
end Advance;
procedure Advance (Ptr : in out char_ptr_ptr) is
begin
Ptr := To_Ptr (To_Address (Ptr) + char_ptr'Size / System.Storage_Unit);
end Advance;
-------------------------
-- Form_POSIX_String --
-------------------------
function strlen (str : char_ptr) return size_t;
pragma Import (C, strlen, "strlen");
function Form_POSIX_String (Str : char_ptr)
return POSIX.POSIX_String is
begin
if Str = null then
return "";
end if;
declare
subtype POSIX_Substring is POSIX.POSIX_String
(1 .. Integer (strlen (Str)));
type POSIX_Substring_Ptr is access POSIX_Substring;
pragma Warnings (Off);
function char_ptr_to_pssptr is new Unchecked_Conversion
(char_ptr, POSIX_Substring_Ptr);
pragma Warnings (On);
begin
return char_ptr_to_pssptr (Str).all;
end;
end Form_POSIX_String;
end POSIX.C;
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