1-- C87B18A.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-- CHECK THAT OVERLOADING RESOLUTION USES THE RULE THAT:
26--
27-- THE TYPES OF THE EXPRESSIONS IN A DISCRIMINANT CONSTRAINT IN
28-- A SUBTYPE INDICATION MUST MATCH THE DISCRIMINANT'S EXPLICIT
29-- TYPEMARK.
30
31-- TRH  1 JULY 82
32
33WITH REPORT; USE REPORT;
34
35PROCEDURE C87B18A IS
36
37     ERR : BOOLEAN := FALSE;
38
39     FUNCTION F1 RETURN INTEGER IS
40     BEGIN
41          RETURN 1;
42     END F1;
43
44     FUNCTION F1 RETURN FLOAT IS
45     BEGIN
46          ERR := TRUE;
47          RETURN 0.0;
48     END F1;
49
50     FUNCTION F2 RETURN BOOLEAN IS
51     BEGIN
52          RETURN TRUE;
53     END F2;
54
55     FUNCTION F2 RETURN STRING IS
56     BEGIN
57          ERR := TRUE;
58          RETURN "STRING";
59     END F2;
60
61BEGIN
62     TEST ("C87B18A","OVERLOADED EXPRESSIONS IN DISCRIMINANT " &
63           "CONSTRAINTS");
64
65     DECLARE
66          TYPE REC (X : INTEGER := 0; Y : BOOLEAN := TRUE) IS
67               RECORD
68                    NULL;
69               END RECORD;
70
71          R1 : REC (F1, F2);
72          R2 : REC (Y => F2, X => F1);
73
74     BEGIN
75          IF ERR THEN
76               FAILED ("RESOLUTION INCORRECT - DISCRIMINANT " &
77                       "CONSTRAINT MUST MATCH DISCRIMINANT TYPE");
78          END IF;
79     END;
80
81     RESULT;
82END C87B18A;
83