1-- C35904A.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 INCOMPATIBLE FIXED POINT CONSTRAINTS RAISE
27--     APPROPRIATE EXCEPTIONS.
28
29
30-- HISTORY:
31--     RJK 05/17/83  CREATED ORIGINAL TEST.
32--     PWB 02/03/86  CORRECTED TEST ERROR:
33--                   ADDED POSSIBLITY OF NUMERIC_ERROR
34--                   IN DECLARATIONS OF SFX3 AND SFX4.
35--     BCB 10/21/87  CHANGED HEADER TO STANDARD FORMAT.  CHANGED RANGE
36--                   CONSTRAINTS OF SUBTYPE SFX1.  CHANGED UPPER BOUND
37--                   OF THE CONSTRAINT OF SFX4.  CHANGED RANGE
38--                   CONSTRAINTS OF FIX.
39--     JRL 03/30/93  REMOVED NUMERIC_ERROR FROM TEST.
40--     PWN 10/27/95  REMOVED OUT OF RANGE STATIC VALUE CHECKS.
41--     EDS 07/16/98  AVOID OPTIMIZATION
42
43WITH REPORT; USE REPORT;
44PROCEDURE C35904A IS
45
46     TYPE FIX IS DELTA 0.5 RANGE -3.0 .. 3.0;
47
48BEGIN
49
50     TEST ("C35904A", "CHECK THAT INCOMPATIBLE FIXED POINT " &
51                      "CONSTRAINTS RAISE APPROPRIATE EXCEPTION");
52
53-- TEST FOR CORRECT SUBTYPE DEFINITION FOR COMPATIBILITY BETWEEN TYPE
54-- AND SUBTYPE CONSTRAINTS.
55
56     BEGIN
57
58          DECLARE
59
60               SUBTYPE SFX1 IS FIX DELTA 1.0 RANGE 0.0 .. 2.0;   -- OK.
61               SFX1_VAR : SFX1;
62
63          BEGIN
64               SFX1_VAR := 1.0;
65          END;
66
67     EXCEPTION
68          WHEN CONSTRAINT_ERROR =>
69                FAILED ("FIXED POINT CONSTRAINTS ARE NOT IN ERROR");
70          WHEN OTHERS =>
71                FAILED ("EXCEPTION SHOULD NOT BE RAISED WHILE " &
72                        "CHECKING DELTA CONSTRAINT");
73     END;
74
75-- TEST FOR INCORRECT SUBTYPE DEFINITION ON ACCURACY BETWEEN TYPE AND
76-- SUBTYPE DEFINITIONS.
77
78     BEGIN
79
80          DECLARE
81
82               SUBTYPE SFX IS FIX DELTA 0.1;  -- DELTA IS SMALLER FOR
83                                              -- SUBTYPE THAN FOR TYPE.
84               -- DEFINE AN OBJECT OF SUBTYPE SFX AND USE IT TO AVOID
85               -- OPTIMIZATION OF SUBTYPE
86               SFX_VAR : SFX := FIX(IDENT_INT(1));
87
88          BEGIN
89               FAILED ("NO EXCEPTION RAISED FOR INCOMPATABLE DELTA " &
90                       FIX'IMAGE(SFX_VAR) );  --USE SFX_VAR
91          END;
92
93     EXCEPTION
94          WHEN CONSTRAINT_ERROR =>
95               NULL;
96          WHEN OTHERS =>
97               FAILED ("INCORRECT EXCEPTION RAISED WHILE CHECKING " &
98                       "DELTA CONSTRAINT");
99     END;
100
101     RESULT;
102
103END C35904A;
104