1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
-- C45323A.ADA
-- Grant of Unlimited Rights
--
-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
-- unlimited rights in the software and documentation contained herein.
-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
-- this public release, the Government intends to confer upon all
-- recipients unlimited rights equal to those held by the Government.
-- These rights include rights to use, duplicate, release or disclose the
-- released technical data and computer software in whole or in part, in
-- any manner and for any purpose whatsoever, and to have or permit others
-- to do so.
--
-- DISCLAIMER
--
-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
-- PARTICULAR PURPOSE OF SAID MATERIAL.
--*
-- OBJECTIVE:
-- CHECK THAT THE NONASSOCIATIVITY OF REAL ARITHMETIC IS PRESERVED
-- FOR FLOATING POINT PRECISION 5, EVEN WHEN OPTIMIZATION WOULD
-- BENEFIT IF FLOATING POINT ADDITION WERE ASSOCIATIVE.
-- HISTORY:
-- JET 08/10/88 CREATED ORIGINAL TEST.
WITH REPORT; USE REPORT;
PROCEDURE C45323A IS
TYPE FLOAT5 IS DIGITS 5;
A, B, C, D, E : FLOAT5;
FUNCTION IDENT(F : FLOAT5) RETURN FLOAT5 IS
BEGIN
RETURN F * FLOAT5(IDENT_INT(1));
END IDENT;
BEGIN
TEST ("C45323A", "CHECK THAT THE NONASSOCIATIVITY OF REAL " &
"ARITHMETIC IS PRESERVED FOR FLOATING POINT " &
"PRECISION 5, EVEN WHEN OPTIMIZATION WOULD " &
"BENEFIT IF FLOATING POINT ADDITION WERE " &
"ASSOCIATIVE");
B := 2#0.1010_1010_1010_1010_10#E3;
A := -B;
C := 2#0.1000_0000_0000_0000_00#E-18;
D := B + C;
E := A + B + C;
IF IDENT(A) + IDENT(B) /= 0.0 THEN
FAILED("INCORRECT VALUE OF A + B");
END IF;
IF IDENT(E) /= IDENT(C) THEN
FAILED("C DOES NOT EQUAL E");
END IF;
RESULT;
END C45323A;
|
