2008-05-27 Vincent Celier <celier@adacore.com>

[pf3gnuchains/gcc-fork.git] / gcc / ada / i-cpoint.ads

diff --git a/gcc/ada/i-cpoint.ads b/gcc/ada/i-cpoint.ads
index 728643a..80c2bfb 100644 (file)
--- a/gcc/ada/i-cpoint.ads
+++ b/gcc/ada/i-cpoint.ads
@@ -6,9 +6,7 @@
 --                                                                          --
 --                                 S p e c                                  --
 --                                                                          --
---                            $Revision: 1.6 $
---                                                                          --
---          Copyright (C) 1993-2000 Free Software Foundation, Inc.          --
+--          Copyright (C) 1993-2005, 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 --
@@ -22,8 +20,8 @@
 -- 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.                                                      --
+-- 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, --
@@ -33,7 +31,7 @@
 -- 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). --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
 --                                                                          --
 ------------------------------------------------------------------------------
 
@@ -44,19 +42,21 @@ generic
    Default_Terminator : Element;
 
 package Interfaces.C.Pointers is
-pragma Preelaborate (Pointers);
+   pragma Preelaborate;
 
    type Pointer is access all Element;
 
+   pragma No_Strict_Aliasing (Pointer);
+   --  We turn off any strict aliasing assumptions for the pointer type,
+   --  since it is possible to create "improperly" aliased values.
+
    function Value
-     (Ref        : in Pointer;
-      Terminator : in Element := Default_Terminator)
-      return       Element_Array;
+     (Ref        : Pointer;
+      Terminator : Element := Default_Terminator) return Element_Array;
 
    function Value
-     (Ref    : in Pointer;
-      Length : in ptrdiff_t)
-      return   Element_Array;
+     (Ref    : Pointer;
+      Length : ptrdiff_t) return Element_Array;
 
    Pointer_Error : exception;
 
@@ -64,10 +64,10 @@ pragma Preelaborate (Pointers);
    -- 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;
+   function "+" (Left : Pointer;   Right : ptrdiff_t) return Pointer;
+   function "+" (Left : ptrdiff_t; Right : Pointer)   return Pointer;
+   function "-" (Left : Pointer;   Right : ptrdiff_t) return Pointer;
+   function "-" (Left : Pointer;   Right : Pointer)   return ptrdiff_t;
 
    procedure Increment (Ref : in out Pointer);
    procedure Decrement (Ref : in out Pointer);
@@ -78,20 +78,19 @@ pragma Preelaborate (Pointers);
    pragma Convention (Intrinsic, Decrement);
 
    function Virtual_Length
-     (Ref        : in Pointer;
-      Terminator : in Element := Default_Terminator)
-      return       ptrdiff_t;
+     (Ref        : Pointer;
+      Terminator : 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);
+     (Source     : Pointer;
+      Target     : Pointer;
+      Limit      : ptrdiff_t := ptrdiff_t'Last;
+      Terminator : Element := Default_Terminator);
 
    procedure Copy_Array
-     (Source  : in Pointer;
-      Target  : in Pointer;
-      Length  : in ptrdiff_t);
+     (Source  : Pointer;
+      Target  : Pointer;
+      Length  : ptrdiff_t);
 
 private
    pragma Inline ("+");