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-- CC3019A.ADA

--                             Grant of Unlimited Rights

--

--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,

--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 

--     unlimited rights in the software and documentation contained herein.

--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making 

--     this public release, the Government intends to confer upon all 

--     recipients unlimited rights  equal to those held by the Government.  

--     These rights include rights to use, duplicate, release or disclose the 

--     released technical data and computer software in whole or in part, in 

--     any manner and for any purpose whatsoever, and to have or permit others 

--     to do so.

--

--                                    DISCLAIMER

--

--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR

--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 

--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE

--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 

--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A

--     PARTICULAR PURPOSE OF SAID MATERIAL.

--*

-- CHECK THAT INSTANTIATIONS OF NESTED GENERIC UNITS ARE PROCESSED

-- CORRECTLY.

-- JBG 11/6/85

GENERIC

     TYPE ELEMENT_TYPE IS PRIVATE;

PACKAGE CC3019A_QUEUES IS

     TYPE QUEUE_TYPE IS PRIVATE;

     PROCEDURE ADD (TO_Q : IN OUT QUEUE_TYPE;

                    VALUE : ELEMENT_TYPE);

     GENERIC

          WITH PROCEDURE APPLY (VAL : ELEMENT_TYPE);

     PROCEDURE ITERATOR (TO_Q : QUEUE_TYPE);

PRIVATE

     TYPE CONTENTS_TYPE IS ARRAY (1..3) OF ELEMENT_TYPE;

     TYPE QUEUE_TYPE IS

          RECORD

               CONTENTS : CONTENTS_TYPE;

               SIZE     : NATURAL := 0;

          END RECORD;

END CC3019A_QUEUES;

PACKAGE BODY CC3019A_QUEUES IS

     PROCEDURE ADD (TO_Q : IN OUT QUEUE_TYPE;

                    VALUE : ELEMENT_TYPE) IS

     BEGIN

          TO_Q.SIZE := TO_Q.SIZE + 1;

          TO_Q.CONTENTS(TO_Q.SIZE) := VALUE;

     END ADD;

--   GENERIC

--        WITH PROCEDURE APPLY (VAL : ELEMENT_TYPE);

     PROCEDURE ITERATOR (TO_Q : QUEUE_TYPE) IS

     BEGIN

          FOR I IN TO_Q.CONTENTS'FIRST .. TO_Q.SIZE LOOP

               APPLY (TO_Q.CONTENTS(I));

          END LOOP;

     END ITERATOR;

END CC3019A_QUEUES;

WITH REPORT; USE REPORT;

WITH CC3019A_QUEUES;

PROCEDURE CC3019A IS

     SUBTYPE STR6 IS STRING (1..6);

     TYPE STR6_ARR IS ARRAY (1..3) OF STR6;

     STR6_VALS : STR6_ARR := ("111111", "222222",

                               IDENT_STR("333333"));

     CUR_STR_INDEX : NATURAL := 1;

     TYPE INT_ARR IS ARRAY (1..3) OF INTEGER;

     INT_VALS : INT_ARR := (-1, 3, IDENT_INT(3));

     CUR_INT_INDEX : NATURAL := 1;

-- THIS PROCEDURE IS CALLED ONCE FOR EACH ELEMENT OF THE QUEUE

--

     PROCEDURE CHECK_STR (VAL : STR6) IS

     BEGIN

          IF VAL /= STR6_VALS(CUR_STR_INDEX) THEN

               FAILED ("STR6 ITERATOR FOR INDEX =" &

                       INTEGER'IMAGE(CUR_STR_INDEX) & " WITH VALUE " &

                       """" & VAL & """");

          END IF;

          CUR_STR_INDEX := CUR_STR_INDEX + 1;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               FAILED ("STR6 - CONSTRAINT_ERROR RAISED");

          WHEN OTHERS =>

               FAILED ("STR6 - UNEXPECTED EXCEPTION");

     END CHECK_STR;

     PROCEDURE CHECK_INT (VAL : INTEGER) IS

     BEGIN

          IF VAL /= INT_VALS(CUR_INT_INDEX) THEN

               FAILED ("INTEGER ITERATOR FOR INDEX =" &

                       INTEGER'IMAGE(CUR_INT_INDEX) & " WITH VALUE " &

                       """" & INTEGER'IMAGE(VAL) & """");

          END IF;

          CUR_INT_INDEX := CUR_INT_INDEX + 1;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               FAILED ("INTEGER - CONSTRAINT_ERROR RAISED");

          WHEN OTHERS =>

               FAILED ("INTEGER - UNEXPECTED EXCEPTION");

     END CHECK_INT;

     PACKAGE STR6_QUEUE IS NEW CC3019A_QUEUES (STR6);

     USE STR6_QUEUE;

     PACKAGE INT_QUEUE IS NEW CC3019A_QUEUES (INTEGER);

     USE INT_QUEUE;

BEGIN

     TEST ("CC3019A", "CHECK NESTED GENERICS - ITERATORS");

     DECLARE

          Q1 : STR6_QUEUE.QUEUE_TYPE;

          PROCEDURE CHK_STR IS NEW STR6_QUEUE.ITERATOR (CHECK_STR);

     BEGIN

          ADD (Q1, "111111");

          ADD (Q1, "222222");

          ADD (Q1, "333333");

          CUR_STR_INDEX := 1;

          CHK_STR (Q1);

     EXCEPTION

          WHEN OTHERS =>

               FAILED ("UNEXPECTED EXCEPTION - Q1");

     END;

-- REPEAT FOR INTEGERS

     DECLARE

          Q2 : INT_QUEUE.QUEUE_TYPE;

          PROCEDURE CHK_INT IS NEW INT_QUEUE.ITERATOR (CHECK_INT);

     BEGIN

          ADD (Q2, -1);

          ADD (Q2, 3);

          ADD (Q2, 3);

          CUR_INT_INDEX := 1;

          CHK_INT (Q2);

     EXCEPTION

          WHEN OTHERS =>

               FAILED ("UNEXPECTED EXCEPTION - Q2");

     END;

     RESULT;

END CC3019A;