| -- 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; |