1-- C43104A.ADA
2
3--                             Grant of Unlimited Rights
4--
5--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
6--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
7--     unlimited rights in the software and documentation contained herein.
8--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making
9--     this public release, the Government intends to confer upon all
10--     recipients unlimited rights  equal to those held by the Government.
11--     These rights include rights to use, duplicate, release or disclose the
12--     released technical data and computer software in whole or in part, in
13--     any manner and for any purpose whatsoever, and to have or permit others
14--     to do so.
15--
16--                                    DISCLAIMER
17--
18--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
19--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
20--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
21--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
22--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
23--     PARTICULAR PURPOSE OF SAID MATERIAL.
24--*
25-- OBJECTIVE:
26--     CHECK THAT WITH THE TYPE OF THE AGGREGATE RESOLVED, THE
27--     DISCRIMINANT MAY BE USED TO DECIDE TO WHICH OF THE VARIANT'S
28--     SUBTYPES THE AGGREGATE BELONGS.
29
30-- HISTORY:
31--     DHH 08/08/88 CREATED ORIGINAL TEST.
32
33WITH REPORT; USE REPORT;
34PROCEDURE C43104A IS
35
36     TYPE INT IS RANGE 0 .. 10;
37
38     TYPE VAR_REC(BOOL : BOOLEAN := TRUE) IS
39          RECORD
40               CASE BOOL IS
41                    WHEN TRUE =>
42                         X : INTEGER;
43                    WHEN FALSE =>
44                         Y : INT;
45               END CASE;
46          END RECORD;
47
48     SUBTYPE S_TRUE IS VAR_REC(TRUE);
49     SUBTYPE S_FALSE IS VAR_REC(FALSE);
50
51     PROCEDURE CHECK(P : IN S_TRUE) IS
52     BEGIN
53          IF P.BOOL = FALSE THEN
54               FAILED("WRONG PROCEDURE ENTERED");
55          END IF;
56
57     EXCEPTION
58          WHEN OTHERS =>
59               FAILED("EXCEPTION RAISED INSIDE PROCEDURE");
60
61     END CHECK;
62
63BEGIN
64     TEST("C43104A", "CHECK THAT WITH THE TYPE OF THE AGGREGATE " &
65                     "RESOLVED, THE DISCRIMINANT MAY BE USED TO " &
66                     "DECIDE TO WHICH OF THE VARIANT'S SUBTYPES " &
67                     "THE AGGREGATE BELONGS");
68
69     CHECK((TRUE, 1));
70
71     BEGIN
72
73          CHECK((FALSE, 2));
74          FAILED("PROCEDURE CALL USING '(FALSE, 2)' DID NOT RAISE " &
75                 "EXCEPTION");
76
77     EXCEPTION
78          WHEN CONSTRAINT_ERROR =>
79               NULL;
80          WHEN OTHERS =>
81               FAILED("INCORRECT EXCEPTION RAISED ON PROCEDURE CALL " &
82                      "USING '(FALSE,2)'");
83     END;
84
85     RESULT;
86END C43104A;
87