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verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
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if you have obtained the source via the command 'git clone',
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1 files changed, 114 insertions, 0 deletions

diff --git a/gcc/ada/g-curexc.ads b/gcc/ada/g-curexc.ads
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+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT LIBRARY COMPONENTS                          --
+--                                                                          --
+--               G N A T . C U R R E N T _ E X C E P T I O N                --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--                      Copyright (C) 1996-2008, AdaCore                    --
+--                                                                          --
+-- 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,  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, --
+-- 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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This package provides routines for obtaining the current exception
+--  information in Ada 83 style. In Ada 83, there was no official method
+--  for obtaining exception information, but a number of vendors supplied
+--  routines for this purpose, and this package closely approximates the
+--  interfaces supplied by DEC Ada 83 and VADS Ada.
+
+--  The routines in this package are associated with a particular exception
+--  handler, and can only be called from within an exception handler. See
+--  also the package GNAT.Most_Recent_Exception, which provides access to
+--  the most recently raised exception, and is not limited to static calls
+--  from an exception handler.
+
+package GNAT.Current_Exception is
+   pragma Pure;
+
+   -----------------
+   -- Subprograms --
+   -----------------
+
+   --  Note: the lower bound of returned String values is always one
+
+   function Exception_Information return String;
+   --  Returns the result of calling Ada.Exceptions.Exception_Information
+   --  with an argument that is the Exception_Occurrence corresponding to
+   --  the current exception. Returns the null string if called from outside
+   --  an exception handler.
+
+   function Exception_Message return String;
+   --  Returns the result of calling Ada.Exceptions.Exception_Message with
+   --  an argument that is the Exception_Occurrence corresponding to the
+   --  current exception. Returns the null string if called from outside an
+   --  exception handler.
+
+   function Exception_Name return String;
+   --  Returns the result of calling Ada.Exceptions.Exception_Name with
+   --  an argument that is the Exception_Occurrence corresponding to the
+   --  current exception. Returns the null string if called from outside
+   --  an exception handler.
+
+   --  Note: all these functions return useful information only if
+   --  called statically from within an exception handler, and they
+   --  return information about the exception corresponding to the
+   --  handler in which they appear. This is NOT the same as the most
+   --  recently raised exception. Consider the example:
+
+   --     exception
+   --        when Constraint_Error =>
+   --          begin
+   --             ...
+   --          exception
+   --             when Tasking_Error => ...
+   --          end;
+   --
+   --          -- Exception_xxx at this point returns the information about
+   --          -- the constraint error, not about any exception raised within
+   --          -- the nested block since it is the static nesting that counts.
+
+   -----------------------------------
+   -- Use of Library Level Renaming --
+   -----------------------------------
+
+   --  For greater compatibility with existing legacy software, library
+   --  level renaming may be used to create a function with a name matching
+   --  one that is in use. For example, some versions of VADS Ada provided
+   --  a function called Current_Exception whose semantics was identical to
+   --  that of GNAT. The following library level renaming declaration:
+
+   --    with GNAT.Current_Exception;
+   --    function Current_Exception
+   --      renames GNAT.Current_Exception.Exception_Name;
+
+   --  placed in a file called current_exception.ads and compiled into the
+   --  application compilation environment, will make the function available
+   --  in a manner exactly compatible with that in VADS Ada 83.
+
+private
+   pragma Import (Intrinsic, Exception_Information);
+   pragma Import (intrinsic, Exception_Message);
+   pragma Import (Intrinsic, Exception_Name);
+
+end GNAT.Current_Exception;