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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . E X C E P T I O N S . I S _ N U L L _ O C C U R R E N C E --
-- --
-- B o d y --
-- --
-- Copyright (C) 2000 Free Software Foundation, 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, 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 is a GNAT-specific child function of Ada.Exceptions. It provides
-- clearly missing functionality for its parent package, and most reasonably
-- would simply be an added function to that package, but this change cannot
-- be made in a conforming manner.
function Ada.Exceptions.Is_Null_Occurrence
(X : Exception_Occurrence)
return Boolean
is
begin
-- The null exception is uniquely identified by the fact that the Id
-- value is null. No other exception occurrence can have a null Id.
if X.Id = Null_Id then
return True;
else
return False;
end if;
end Ada.Exceptions.Is_Null_Occurrence;
|
