1-- C45323A.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 THE NONASSOCIATIVITY OF REAL ARITHMETIC IS PRESERVED 27-- FOR FLOATING POINT PRECISION 5, EVEN WHEN OPTIMIZATION WOULD 28-- BENEFIT IF FLOATING POINT ADDITION WERE ASSOCIATIVE. 29 30-- HISTORY: 31-- JET 08/10/88 CREATED ORIGINAL TEST. 32 33WITH REPORT; USE REPORT; 34PROCEDURE C45323A IS 35 36 TYPE FLOAT5 IS DIGITS 5; 37 38 A, B, C, D, E : FLOAT5; 39 40 FUNCTION IDENT(F : FLOAT5) RETURN FLOAT5 IS 41 BEGIN 42 RETURN F * FLOAT5(IDENT_INT(1)); 43 END IDENT; 44 45BEGIN 46 TEST ("C45323A", "CHECK THAT THE NONASSOCIATIVITY OF REAL " & 47 "ARITHMETIC IS PRESERVED FOR FLOATING POINT " & 48 "PRECISION 5, EVEN WHEN OPTIMIZATION WOULD " & 49 "BENEFIT IF FLOATING POINT ADDITION WERE " & 50 "ASSOCIATIVE"); 51 52 B := 2#0.1010_1010_1010_1010_10#E3; 53 A := -B; 54 C := 2#0.1000_0000_0000_0000_00#E-18; 55 D := B + C; 56 E := A + B + C; 57 58 IF IDENT(A) + IDENT(B) /= 0.0 THEN 59 FAILED("INCORRECT VALUE OF A + B"); 60 END IF; 61 62 IF IDENT(E) /= IDENT(C) THEN 63 FAILED("C DOES NOT EQUAL E"); 64 END IF; 65 66 RESULT; 67END C45323A; 68