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1 149 jeremybenn
-- CC3019B1.ADA
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--                             Grant of Unlimited Rights
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--
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--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 
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--     unlimited rights in the software and documentation contained herein.
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--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making 
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--     this public release, the Government intends to confer upon all 
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--     recipients unlimited rights  equal to those held by the Government.  
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--     These rights include rights to use, duplicate, release or disclose the 
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--     released technical data and computer software in whole or in part, in 
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--     any manner and for any purpose whatsoever, and to have or permit others 
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--     to do so.
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--
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--                                    DISCLAIMER
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--
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--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 
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--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 
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--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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--     PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--  THIS IS GENERIC PACKAGE WHICH IS USED TO CHECK THE LEVEL OF
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--  NESTED GENERICS SUPPORTED BY AN IMPLEMENTATION. IT IS USED
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--  BY THE MAIN PROCEDURE, I.E., CC3019B2M.ADA.
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--
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-- *** THIS FILE MUST BE COMPILED AFTER CC3019B0.ADA HAS BEEN
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-- *** COMPILED.
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--
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-- HISTORY:
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--         EDWARD V. BERARD, 31 AUGUST 1990
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WITH CC3019B0_LIST_CLASS ;
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GENERIC
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     TYPE ELEMENT IS LIMITED PRIVATE ;
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     WITH PROCEDURE ASSIGN (SOURCE        : IN OUT ELEMENT ;
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                            DESTINATION   : IN OUT ELEMENT) ;
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     WITH FUNCTION "=" (LEFT  : IN ELEMENT ;
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                        RIGHT : IN ELEMENT) RETURN BOOLEAN ;
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PACKAGE CC3019B1_STACK_CLASS IS
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     TYPE STACK IS LIMITED PRIVATE ;
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     OVERFLOW    : EXCEPTION ;
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     UNDERFLOW   : EXCEPTION ;
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     PROCEDURE PUSH (THIS_ELEMENT        : IN OUT ELEMENT ;
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                     ON_TO_THIS_STACK    : IN OUT STACK) ;
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     PROCEDURE POP  (THIS_ELEMENT        : IN OUT ELEMENT ;
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                     OFF_THIS_STACK      : IN OUT STACK) ;
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     PROCEDURE COPY  (THIS_STACK       : IN OUT STACK ;
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                      TO_THIS_STACK    : IN OUT STACK) ;
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     PROCEDURE CLEAR (THIS_STACK       : IN OUT STACK) ;
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     GENERIC
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          WITH PROCEDURE PROCESS (THIS_ELEMENT    : IN  ELEMENT ;
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                                  CONTINUE        : OUT BOOLEAN) ;
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     PROCEDURE ITERATE (OVER_THIS_STACK    : IN STACK) ;
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     FUNCTION NUMBER_OF_ELEMENTS (ON_THIS_STACK    : IN STACK)
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          RETURN NATURAL ;
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     FUNCTION "=" (LEFT  : IN STACK ;
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                   RIGHT : IN STACK) RETURN BOOLEAN ;
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PRIVATE
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     PACKAGE NEW_LIST_CLASS IS
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          NEW CC3019B0_LIST_CLASS (ELEMENT => ELEMENT,
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                                   ASSIGN  => ASSIGN,
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                                   "="     => "=") ;
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     TYPE STACK IS NEW NEW_LIST_CLASS.LIST ;
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END CC3019B1_STACK_CLASS ;
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PACKAGE BODY CC3019B1_STACK_CLASS IS
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     PROCEDURE PUSH (THIS_ELEMENT        : IN OUT ELEMENT ;
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                     ON_TO_THIS_STACK    : IN OUT STACK) IS
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     BEGIN  -- PUSH
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          NEW_LIST_CLASS.ADD (
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               THIS_ELEMENT    => THIS_ELEMENT,
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               TO_THIS_LIST    =>
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                    NEW_LIST_CLASS.LIST (ON_TO_THIS_STACK)) ;
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     EXCEPTION
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          WHEN NEW_LIST_CLASS.OVERFLOW => RAISE OVERFLOW ;
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     END PUSH ;
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     PROCEDURE POP  (THIS_ELEMENT        : IN OUT ELEMENT ;
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                     OFF_THIS_STACK      : IN OUT STACK) IS
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     BEGIN  -- POP
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          NEW_LIST_CLASS.DELETE (
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               THIS_ELEMENT      => THIS_ELEMENT,
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               FROM_THIS_LIST    =>
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                         NEW_LIST_CLASS.LIST (OFF_THIS_STACK)) ;
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     EXCEPTION
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          WHEN NEW_LIST_CLASS.UNDERFLOW => RAISE UNDERFLOW ;
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     END POP ;
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     PROCEDURE COPY  (THIS_STACK       : IN OUT STACK ;
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                      TO_THIS_STACK    : IN OUT STACK) IS
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     BEGIN  -- COPY
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          NEW_LIST_CLASS.COPY (
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               THIS_LIST    => NEW_LIST_CLASS.LIST (THIS_STACK),
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               TO_THIS_LIST => NEW_LIST_CLASS.LIST (TO_THIS_STACK)) ;
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     END COPY ;
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     PROCEDURE CLEAR (THIS_STACK        : IN OUT STACK) IS
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     BEGIN  -- CLEAR
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          NEW_LIST_CLASS.CLEAR (NEW_LIST_CLASS.LIST (THIS_STACK)) ;
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     END CLEAR ;
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     PROCEDURE ITERATE (OVER_THIS_STACK    : IN STACK) IS
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          PROCEDURE STACK_ITERATE IS NEW NEW_LIST_CLASS.ITERATE
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               (PROCESS => PROCESS) ;
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     BEGIN  -- ITERATE
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          STACK_ITERATE (NEW_LIST_CLASS.LIST (OVER_THIS_STACK)) ;
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     END ITERATE ;
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     FUNCTION NUMBER_OF_ELEMENTS (ON_THIS_STACK    : IN STACK)
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          RETURN NATURAL IS
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     BEGIN  -- NUMBER_OF_ELEMENTS
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          RETURN NEW_LIST_CLASS.NUMBER_OF_ELEMENTS
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               (IN_THIS_LIST => NEW_LIST_CLASS.LIST (ON_THIS_STACK)) ;
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     END NUMBER_OF_ELEMENTS ;
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     FUNCTION "=" (LEFT  : IN STACK ;
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                   RIGHT : IN STACK) RETURN BOOLEAN IS
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     BEGIN  -- "="
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          RETURN NEW_LIST_CLASS."=" (
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               LEFT  => NEW_LIST_CLASS.LIST (LEFT),
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               RIGHT => NEW_LIST_CLASS.LIST (RIGHT)) ;
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     END "=" ;
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END CC3019B1_STACK_CLASS ;

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