1-- C87B10A.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-- IN A RANGE CONSTRAINT OF A FIXED POINT OR FLOATING POINT TYPE
28-- DEFINITION, BOTH BOUNDS MUST BE OF SOME REAL TYPE, ALTHOUGH
29-- THE TWO BOUNDS DO NOT HAVE TO BE OF THE SAME TYPE.
30
31-- TRH 7/28/82
32-- DSJ 6/10/83
33-- JBG 9/19/84
34
35WITH REPORT; USE REPORT;
36
37PROCEDURE C87B10A IS
38
39     SUBTYPE DUR IS DURATION;
40
41     FUNCTION "+" (X : FLOAT) RETURN INTEGER IS
42     BEGIN
43          FAILED ("RANGE CONSTRAINT FOR REAL TYPE DEFINITIONS " &
44                  "MUST HAVE REAL BOUNDS");
45          RETURN -10;
46     END "+";
47
48     FUNCTION "+" (X, Y : FLOAT) RETURN INTEGER IS
49     BEGIN
50          FAILED ("RANGE CONSTRAINT FOR REAL TYPE DEFINITIONS " &
51                  "MUST HAVE REAL BOUNDS");
52          RETURN -10;
53     END "+";
54
55BEGIN
56     TEST ("C87B10A","RANGE BOUNDS IN REAL TYPE DEFINITIONS MUST BE" &
57           " OF SOME (NOT NECESSARILY THE SAME) REAL TYPE");
58
59     DECLARE
60          TYPE R1 IS DIGITS  2 RANGE 0.0 .. 1.0 + FLOAT'(1.0);
61          TYPE R2 IS DELTA 0.1 RANGE FLOAT'(1.0) + 1.0 .. DUR'(2.0);
62          TYPE R3 IS DIGITS  2 RANGE +1.0 .. "+" (FLOAT'(2.0), 2.0);
63          TYPE R4 IS DELTA 0.1 RANGE 0.0 + FLOAT'(0.0) .. +1.0;
64
65
66     BEGIN
67          IF 2.0 NOT IN R1 OR -1.0 IN R2 OR
68               -1.0 IN R3 OR -0.9 IN R4 THEN
69               FAILED ("RANGE BOUNDS IN REAL TYPE DEFINITIONS DO NOT "
70                    & "HAVE TO BE OF THE SAME REAL TYPE");
71          END IF;
72     END;
73
74     RESULT;
75END C87B10A;
76