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------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- I N T E R F A C E S . C . P O I N T E R S --
-- --
-- S p e c --
-- --
-- $Revision: 1.6 $
-- --
-- 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). --
-- --
------------------------------------------------------------------------------
generic
type Index is (<>);
type Element is private;
type Element_Array is array (Index range <>) of aliased Element;
Default_Terminator : Element;
package Interfaces.C.Pointers is
pragma Preelaborate (Pointers);
type Pointer is access all Element;
function Value
(Ref : in Pointer;
Terminator : in Element := Default_Terminator)
return Element_Array;
function Value
(Ref : in Pointer;
Length : in ptrdiff_t)
return Element_Array;
Pointer_Error : exception;
--------------------------------
-- C-style Pointer Arithmetic --
--------------------------------
function "+" (Left : in Pointer; Right : in ptrdiff_t) return Pointer;
function "+" (Left : in ptrdiff_t; Right : in Pointer) return Pointer;
function "-" (Left : in Pointer; Right : in ptrdiff_t) return Pointer;
function "-" (Left : in Pointer; Right : in Pointer) return ptrdiff_t;
procedure Increment (Ref : in out Pointer);
procedure Decrement (Ref : in out Pointer);
pragma Convention (Intrinsic, "+");
pragma Convention (Intrinsic, "-");
pragma Convention (Intrinsic, Increment);
pragma Convention (Intrinsic, Decrement);
function Virtual_Length
(Ref : in Pointer;
Terminator : in Element := Default_Terminator)
return ptrdiff_t;
procedure Copy_Terminated_Array
(Source : in Pointer;
Target : in Pointer;
Limit : in ptrdiff_t := ptrdiff_t'Last;
Terminator : in Element := Default_Terminator);
procedure Copy_Array
(Source : in Pointer;
Target : in Pointer;
Length : in ptrdiff_t);
private
pragma Inline ("+");
pragma Inline ("-");
pragma Inline (Decrement);
pragma Inline (Increment);
end Interfaces.C.Pointers;
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