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-- C52104X.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 LENGTHS MUST MATCH IN ARRAY AND SLICE ASSIGNMENTS.

--    MORE SPECIFICALLY, TEST THAT ATTEMPTED ASSIGNMENTS BETWEEN

--    ARRAYS WITH NON-MATCHING LENGTHS LEAVE THE DESTINATION ARRAY

--    INTACT AND CAUSE  CONSTRAINT_ERROR  TO BE RAISED.

--    (OVERLAPS BETWEEN THE OPERANDS OF THE ASSIGNMENT STATEMENT

--    ARE TREATED ELSEWHERE.)

-- THIS IS A SPECIAL CASE IN

--    DIVISION  C :  NON-NULL ARRAYS WHOSE LENGTHS ARE NOT DETERMINABLE

--                   STATICALLY

-- WHICH TREATS ARRAYS OF LENGTH GREATER THAN  INTEGER'LAST .

--    AN ADDITIONAL OBJECTIVE OF THIS TEST IS TO CHECK WHETHER LENGTH

--    COMPARISONS (AND LENGTH COMPUTATIONS) CAUSE

--    CONSTRAINT_ERROR TO BE RAISED.

-- *** NOTE: This test has been modified since ACVC version 1.11 to    -- 9X

-- ***       remove incompatibilities associated with the transition   -- 9X

-- ***       to Ada 9X.                                                -- 9X

-- ***                                                                 -- 9X

-- RM  07/31/81

-- SPS 02/07/83

-- EG  10/28/85  FIX NUMERIC_ERROR/CONSTRAINT_ERROR ACCORDING TO

--               AI-00387.

-- JRK 06/24/86  FIXED COMMENTS ABOUT NUMERIC_ERROR/CONSTRAINT_ERROR.

-- MRM 03/30/93  REMOVED NUMERIC_ERROR FOR 9X INCOMPATIBILITY

WITH REPORT;

PROCEDURE  C52104X  IS

     USE  REPORT ;

BEGIN

     TEST( "C52104X" , "CHECK THAT IN ARRAY ASSIGNMENTS AND IN SLICE " &

                       "ASSIGNMENTS, THE LENGTHS MUST MATCH; ALSO " &

                       "CHECK WHETHER CONSTRAINT_ERROR " &

                       "OR STORAGE_ERROR ARE RAISED FOR LARGE ARRAYS");

     -- IN THIS TEST WE CAN'T USE AGGREGATE ASSIGNMENT (EXCEPT WHEN

     --    THE AGGREGATES ARE STRING LITERALS); THEREFORE:

     --

     --    (1) ARRAYS WILL BE INITIALIZED BY INDIVIDUAL ASSIGNMENTS;

     --    (2) CAN'T USE NON-NULL CONSTANT ARRAYS.

     -- WE ASSUME THAT IN AN ARRAY_TYPE_DEFINITION THE INDEX PORTION

     --    AND THE COMPONENT_TYPE PORTION ARE FUNCTIONALLY ORTHOGONAL

     --    ALSO AT THE IMPLEMENTATION LEVEL, I.E. THAT THE CORRECTNESS

     --    OF THE ACCESSING MECHANISM FOR ARRAYS DOES NOT DEPEND ON

     --    COMPONENT_TYPE.  ACCORDINGLY WE ARE TESTING FOR SOME BUT

     --    NOT ALL KINDS OF COMPONENT_TYPE.  (COMPONENT_TYPES INCLUDED:

     --    INTEGER , CHARACTER , BOOLEAN .)

     -------------------------------------------------------------------

     --   (12) SLICED ONE-DIMENSIONAL ARRAY OBJECTS WHOSE TYPEMARKS

     --        WERE DEFINED USING THE "BOX" SYMBOL

     --        AND FOR WHICH THE COMPONENT TYPE IS NOT  'CHARACTER' .

     --        ((ONE-DIMENSIONAL) ARRAYS OF BOOLEANS.)

CONSTR_ERR:         -- THIS BLOCK CATCHES CONSTRAINT_ERROR

                    -- FOR THE SUBTYPE DECLARATION.

     BEGIN

DCL_ARR:  DECLARE        -- THIS BLOCK DECLARES THE ARRAY SUBTYPE.

               TYPE  TABOX5  IS  ARRAY( INTEGER RANGE <> )  OF BOOLEAN ;

               PRAGMA PACK (TABOX5);

               SUBTYPE  TABOX51  IS  TABOX5

                             (IDENT_INT(-6)..IDENT_INT(INTEGER'LAST-4));

               -- CONSTRAINT_ERROR MAY BE RAISED BY THIS

               -- SUBTYPE DECLARATION.

          BEGIN

               COMMENT ("NO CONSTRAINT_ERROR FOR TYPE " &

                        "WITH 'LENGTH = INTEGER'LAST + 3");

OBJ_DCL:       DECLARE   -- THIS BLOCK DECLARES TWO BOOLEAN ARRAYS THAT

                         -- HAVE INTEGER'LAST + 3 COMPONENTS;

                         -- STORAGE_ERROR MAY BE RAISED.

                    ARRX51  :  TABOX51 ;

                    ARRX52  :  TABOX5

                             (IDENT_INT(-2)..IDENT_INT( INTEGER'LAST));

               BEGIN

               COMMENT ("NO STORAGE_ERROR OR " &

                        "CONSTRAINT_ERROR RAISED WHEN ALLOCATING TWO " &

                        "BIG BOOLEAN ARRAYS");

               -- INITIALIZATION OF LHS ARRAY:

NO_EXCP:       BEGIN          -- NO EXCEPTION SHOULD OCCUR IN THIS BLOCK

                    FOR  I  IN  IDENT_INT(-2)..IDENT_INT(9)  LOOP

                         ARRX52( I )  :=  FALSE  ;

                    END LOOP;

               -- INITIALIZATION OF RHS ARRAY:

               -- ONLY A SHORT INITIAL SEGMENT IS INITIALIZED,

               -- SINCE A COMPLETE INITIALIZATION MIGHT TAKE TOO LONG

               -- AND THE EXECUTION MIGHT BE ABORTED BEFORE THE LENGTH

               -- COMPARISON OF THE ARRAY ASSIGNMENT IS ATTEMPTED.

                    FOR  I  IN  IDENT_INT(-6)..IDENT_INT(5)  LOOP

                         ARRX51( I )  :=  TRUE  ;

                    END LOOP;

               EXCEPTION

                    WHEN CONSTRAINT_ERROR =>

                         FAILED ("CONSTRAINT_ERROR RAISED WHEN " &

                                 "ASSIGNING TO ARRAY COMPONENTS");

                    WHEN OTHERS =>

                         FAILED ("OTHER EXCEPTION RAISED - 1");

               END NO_EXCP;

DO_SLICE:      BEGIN

               -- SLICE ASSIGNMENT:

                    ARRX52( IDENT_INT(-1)..IDENT_INT(INTEGER'LAST  )) :=

                         ARRX51(

                            IDENT_INT(-4)..IDENT_INT(INTEGER'LAST-4) ) ;

                    FAILED( "EXCEPTION NOT RAISED  (12)" );

               EXCEPTION

                    WHEN CONSTRAINT_ERROR =>

                         COMMENT ("CONSTRAINT_ERROR RAISED DURING " &

                                  "CHECK FOR SLICE ASSIGNMENT");

                         -- CHECKING THE VALUES AFTER THE SLICE

                         -- ASSIGNMENT:

                         FOR  I  IN  IDENT_INT(-2)..IDENT_INT(9)  LOOP

                              IF  ARRX52( I )  /=  FALSE

                              THEN

                                   FAILED( "LHS ARRAY ALTERED  (12A)");

                              END IF;

                         END LOOP;

                    WHEN STORAGE_ERROR =>

                         COMMENT ("STORAGE_ERROR RAISED DURING CHECK " &

                                  "FOR SLICE ASSIGNMENT");

                    WHEN OTHERS =>

                         FAILED ("SOME EXCEPTION RAISED DURING SLICE");

               END DO_SLICE;

          END OBJ_DCL;

          EXCEPTION

               WHEN STORAGE_ERROR =>

                    COMMENT ("STORAGE_ERROR RAISED WHEN DECLARING " &

                             "TWO PACKED BOOLEAN ARRAYS WITH " &

                             "INTEGER'LAST + 3 COMPONENTS");

               WHEN CONSTRAINT_ERROR =>

                    COMMENT ("CONSTRAINT_ERROR RAISED WHEN DECLARING " &

                             "TWO PACKED BOOLEAN ARRAYS WITH " &

                             "INTEGER'LAST + 3 COMPONENTS");

               WHEN OTHERS =>

                    FAILED ("SOME EXCEPTION RAISED - 3");

          END DCL_ARR;

     EXCEPTION

          WHEN CONSTRAINT_ERROR =>

               COMMENT ("CONSTRAINT_ERROR RAISED WHEN DECLARING AN " &

                        "ARRAY SUBTYPE WITH INTEGER'LAST + 3 " &

                        "COMPONENTS");

          WHEN STORAGE_ERROR =>

               FAILED ("STORAGE_ERROR RAISED FOR TYPE DECLARATION");

          WHEN OTHERS =>

               FAILED ("OTHER EXCEPTION RAISED - 4");

     END CONSTR_ERR;

     RESULT ;

END C52104X;