1-- C4A013A.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 CONSTRAINT_ERROR IS RAISED FOR A NONSTATIC
26-- UNIVERSAL_REAL EXPRESSION IF THE VALUE WOULD LIE OUTSIDE THE RANGE OF
27-- THE BASE TYPE OF THE MOST ACCURATE PREDEFINED FLOATING POINT TYPE AND
28-- MACHINE_OVERFLOWS IS TRUE FOR THAT TYPE.
29
30-- *** NOTE: This test has been modified since ACVC version 1.11 to    -- 9X
31-- ***       remove incompatibilities associated with the transition   -- 9X
32-- ***       to Ada 9X.                                                -- 9X
33-- ***                                                                 -- 9X
34
35-- BAW 29 SEPT 80
36-- TBN 10/30/85     RENAMED FROM C4A013A.ADA.
37-- JRK 1/13/86      COMPLETELY REVISED TO CHECK NONSTATIC UNIVERSAL_REAL
38--                  EXPRESSIONS WHOSE RESULTS OVERFLOW.  REVISED
39--                  NUMERIC_ERROR/CONSTRAINT_ERROR ACCORDING TO
40--                  AI-00387.
41-- MRM 03/30/93     REMOVED NUMERIC_ERROR FOR 9X COMPATIBILITY
42
43WITH SYSTEM, REPORT;
44USE SYSTEM, REPORT;
45
46PROCEDURE C4A013A IS
47
48     TYPE F IS DIGITS MAX_DIGITS;
49
50     B : BOOLEAN;
51
52BEGIN
53     TEST ("C4A013A", "CHECK NONSTATIC UNIVERSAL_REAL EXPRESSIONS " &
54                      "WHOSE RESULTS OVERFLOW");
55
56     BEGIN
57          B := 1.0 < 1.0 / (1.0 * INTEGER'POS (IDENT_INT (0)));
58
59          IF F'MACHINE_OVERFLOWS THEN
60               FAILED ("MACHINE_OVERFLOWS IS TRUE, BUT NO EXCEPTION " &
61                       "WAS RAISED");
62          ELSE COMMENT ("MACHINE_OVERFLOWS IS FALSE AND NO EXCEPTION " &
63                        "WAS RAISED");
64          END IF;
65
66          IF NOT B THEN  -- USE B TO PREVENT DEAD VARIABLE OPTIMIZATION.
67               COMMENT ("1.0 < 1.0 / 0.0 YIELDS FALSE");
68          END IF;
69     EXCEPTION
70          WHEN CONSTRAINT_ERROR =>
71               COMMENT ("CONSTRAINT_ERROR RAISED");
72          WHEN OTHERS =>
73               FAILED ("WRONG EXCEPTION RAISED");
74     END;
75
76     RESULT;
77END C4A013A;
78