1-- C37217C.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 WHETHER THE OPTIONAL COMPATIBILITY CHECK IS
27--     PERFORMED WHEN A DISCRIMINANT CONSTRAINT IS GIVEN FOR AN ACCESS
28--     TYPE - WHEN THERE IS A "LOOP" IN THE DESIGNATED TYPE'S FULL
29--     DECLARATION.
30
31-- HISTORY:
32--     DHH 08/04/88 CREATED ORIGINAL TEST.
33
34WITH REPORT; USE REPORT;
35PROCEDURE C37217C IS
36
37BEGIN  --C37217C BODY
38     TEST ("C37217C", "CHECK WHETHER THE OPTIONAL COMPATIBILITY " &
39                      "CHECK IS PERFORMED WHEN A DISCRIMINANT " &
40                      "CONSTRAINT IS GIVEN FOR AN ACCESS TYPE " &
41                      "- WHEN THERE IS A ""LOOP"" IN THE DESIGNATED " &
42                      "TYPE'S FULL DECLARATION");
43
44     BEGIN
45          DECLARE
46               TYPE R1(D1 : INTEGER);
47               TYPE R2(D2 : INTEGER);
48               TYPE R3(D3 : POSITIVE);
49
50               TYPE ACC_R1 IS ACCESS R1;
51               TYPE ACC_R2 IS ACCESS R2;
52               TYPE ACC_R3 IS ACCESS R3;
53
54               TYPE R1(D1 : INTEGER) IS
55                    RECORD
56                         C1 : ACC_R2(D1);
57                    END RECORD;
58
59               TYPE R2(D2 : INTEGER) IS
60                    RECORD
61                         C2 : ACC_R3(D2);
62                    END RECORD;
63
64               TYPE R3(D3 : POSITIVE) IS
65                    RECORD
66                         C3 : ACC_R1(D3);
67                    END RECORD;
68
69                X1 : ACC_R1(IDENT_INT(0));
70
71          BEGIN
72               COMMENT("OPTIONAL COMPATIBILITY CHECK NOT PERFORMED");
73
74               X1 := NEW R1'(D1 =>IDENT_INT(0),
75                             C1 => NEW R2'(D2 => IDENT_INT(0),
76                                           C2 => NEW R3(IDENT_INT(0))));
77
78               FAILED("CONSTRAINT_ERROR NOT RAISED");
79
80               IF IDENT_INT(X1.C1.C2.D3) /= IDENT_INT(0) THEN
81                    COMMENT("THIS LINE SHOULD NOT PRINT OUT");
82               END IF;
83          EXCEPTION
84               WHEN CONSTRAINT_ERROR =>
85                    NULL;
86               WHEN OTHERS =>
87                    FAILED("UNEXPECTED EXCEPTION RAISED IN " &
88                           "VARIABLE USE - LOOPED");
89          END;
90     EXCEPTION
91          WHEN CONSTRAINT_ERROR =>
92               COMMENT("OPTIONAL COMPATIBILITY CHECK PERFORMED");
93          WHEN OTHERS =>
94               FAILED("UNEXPECTED EXCEPTION RAISED IN " &
95                      "VARIABLE DECLARATION - LOOPED");
96     END;
97
98     RESULT;
99
100END C37217C;  -- BODY
101