| ------------------------------------------------------------------------------ |
| -- -- |
| -- 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; |
