1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT LIBRARY COMPONENTS                          --
4--                                                                          --
5--            G N A T . M O S T _ R E C E N T _ E X C E P T I O N           --
6--                                                                          --
7--                                 B o d y                                  --
8--                                                                          --
9--              Copyright (C) 2000 Ada Core Technologies, Inc.              --
10--                                                                          --
11-- GNAT is free software;  you can  redistribute it  and/or modify it under --
12-- terms of the  GNU General Public License as published  by the Free Soft- --
13-- ware  Foundation;  either version 2,  or (at your option) any later ver- --
14-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
15-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
16-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
17-- for  more details.  You should have  received  a copy of the GNU General --
18-- Public License  distributed with GNAT;  see file COPYING.  If not, write --
19-- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
20-- MA 02111-1307, USA.                                                      --
21--                                                                          --
22-- As a special exception,  if other files  instantiate  generics from this --
23-- unit, or you link  this unit with other files  to produce an executable, --
24-- this  unit  does not  by itself cause  the resulting  executable  to  be --
25-- covered  by the  GNU  General  Public  License.  This exception does not --
26-- however invalidate  any other reasons why  the executable file  might be --
27-- covered by the  GNU Public License.                                      --
28--                                                                          --
29-- GNAT was originally developed  by the GNAT team at  New York University. --
30-- Extensive contributions were provided by Ada Core Technologies Inc.      --
31--                                                                          --
32------------------------------------------------------------------------------
33
34with Ada.Exceptions.Is_Null_Occurrence;
35with System.Soft_Links;
36
37package body GNAT.Most_Recent_Exception is
38
39   ----------------
40   -- Occurrence --
41   ----------------
42
43   function Occurrence
44     return Ada.Exceptions.Exception_Occurrence
45   is
46      EOA : constant Ada.Exceptions.Exception_Occurrence_Access :=
47              GNAT.Most_Recent_Exception.Occurrence_Access;
48
49      use type Ada.Exceptions.Exception_Occurrence_Access;
50
51   begin
52      if EOA = null then
53         return Ada.Exceptions.Null_Occurrence;
54      else
55         return EOA.all;
56      end if;
57   end Occurrence;
58
59   -----------------------
60   -- Occurrence_Access --
61   -----------------------
62
63   function Occurrence_Access
64     return Ada.Exceptions.Exception_Occurrence_Access
65   is
66      use Ada.Exceptions;
67
68      EOA : constant Exception_Occurrence_Access :=
69              System.Soft_Links.Get_Current_Excep.all;
70
71   begin
72      if EOA = null then
73         return null;
74
75      elsif Is_Null_Occurrence (EOA.all) then
76         return null;
77
78      else
79         return EOA;
80      end if;
81   end Occurrence_Access;
82
83end GNAT.Most_Recent_Exception;
84