------------------------------------------------------------------------------ -- -- -- GNAT LIBRARY COMPONENTS -- -- -- -- G N A T . M O S T _ R E C E N T _ E X C E P T I O N -- -- -- -- S p e c -- -- -- -- Copyright (C) 2000 Ada Core Technologies, Inc. -- -- -- -- 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. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- This package provides routines for accessing the most recently raised -- exception. This may be useful for certain logging activities. It may -- also be useful for mimicing implementation dependent capabilities in -- Ada 83 compilers, but see also GNAT.Current_Exceptions for this usage. with Ada.Exceptions; package GNAT.Most_Recent_Exception is ----------------- -- Subprograms -- ----------------- function Occurrence return Ada.Exceptions.Exception_Occurrence; -- Returns the Exception_Occurrence for the most recently raised -- exception in the current task. If no exception has been raised -- in the current task prior to the call, returns Null_Occurrence. function Occurrence_Access return Ada.Exceptions.Exception_Occurrence_Access; -- Similar to the above, but returns an access to the occurrence value. -- This value is in a task specific location, and may be validly accessed -- as long as no further exception is raised in the calling task. -- Note: unlike the routines in GNAT.Current_Exception, these functions -- access the most recently raised exception, regardless of where they -- are called. Consider the following example: -- exception -- when Constraint_Error => -- begin -- ... -- exception -- when Tasking_Error => ... -- end; -- -- -- Assuming a Tasking_Error was raised in the inner block, -- -- a call to GNAT.Most_Recent_Exception.Occurrence will -- -- return information about this Tasking_Error exception, -- -- not about the Constraint_Error exception being handled -- -- by the current handler code. end GNAT.Most_Recent_Exception;