-- C45532H.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 OPERATOR "/" PRODUCES CORRECT RESULTS -- FOR FIXED POINT TYPES USING 3 SUBTESTS. -- THIS TEST REQUIRES MIN_WORD_LENGTH = 16. -- THIS TEST USES VALUES OF DELTA WHICH ARE GREATER THAN OR -- EQUAL TO 0.5. -- -- TEST CASES ARE: -- A) THE OPERATOR /, A, B, AND A / B ALL MODEL NUMBERS. -- B) THE OPERATOR /, A, B MODEL NUMBERS A / B NOT. -- C) THE OPERATOR /, USING NO MODEL NUMBERS. -- -- REPEAT FOR MINIMUM REQUIRED WORD LENGTHS OF 12, 16, 32 AND 48, -- WITH RANGE <, =, AND > THAN 1.0 AND -- WITH DELTA <, =, AND > THAN 1.0. -- HISTORY: -- NTW 09/08/86 CREATED ORIGINAL TEST. -- RJW 11/05/86 REVISED COMMENTS. -- DHH 01/13/88 ADDED APPLICABILITY CRITERIA AND STANDARD HEADER. -- RDH 04/27/90 REVISED APPLICABILITY CRITERIA. -- BCB 10/03/90 REMOVED APPLICABILITY CRITERIA AND N/A => ERROR -- LINE. CHANGED EXTENSION FROM '.DEP' TO '.ADA'. WITH REPORT; PROCEDURE C45532H IS USE REPORT; MIN_WORD_LENGTH : CONSTANT := 16; FULL_SCALE : CONSTANT := 2 ** (MIN_WORD_LENGTH - 1); A_THIRD : CONSTANT := FULL_SCALE / 3; RNG1 : CONSTANT := FULL_SCALE * 0.5; TYPE FX_0P5 IS DELTA 0.5 RANGE -RNG1 * 1 .. RNG1 * 1 - 0.5; TYPE FX_1 IS DELTA 1.0 RANGE -RNG1 * 2 .. RNG1 * 2 - 1.0; TYPE FX_RNG1 IS DELTA RNG1 RANGE -RNG1 * FULL_SCALE .. RNG1 * (FULL_SCALE - 1); BEGIN TEST ("C45532H", "FIXED POINT OPERATOR ""/""" ); -------------------------------------------------- -- CASE A) THE OPERATOR /, A, B, AND A / B ALL MODEL NUMBERS. A: DECLARE A : FX_RNG1 := 0.0; B : FX_0P5 := 0.0; RESULT_VALUE : FX_0P5 := 0.0; LOWEST_ACCEPTABLE_VALUE : FX_0P5 := FX_0P5 (RNG1 / 2); HIGHEST_ACCEPTABLE_VALUE : FX_0P5 := FX_0P5 (RNG1 / 2); BEGIN IF EQUAL (3, 3) THEN A := FX_RNG1 (RNG1 * RNG1 / 4); -- A MODEL NUMBER B := FX_0P5 (RNG1 / 2); -- A MODEL NUMBER END IF; RESULT_VALUE := FX_0P5 (A / B); IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE) OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN FAILED ("RESULT OF ""/"" OUTSIDE RESULT MODEL INTERVAL " & "WHEN A, B, AND A / B ARE ALL MODEL NUMBERS"); END IF; END A; -------------------------------------------------- -- CASE B) THE OPERATOR /, A, B MODEL NUMBERS A / B NOT. B: DECLARE A : FX_RNG1 := 0.0; B : FX_1 := 0.0; RESULT_VALUE : FX_0P5 := 0.0; LOWEST_ACCEPTABLE_VALUE : FX_0P5 := FX_0P5 (0.5 * A_THIRD); HIGHEST_ACCEPTABLE_VALUE : FX_0P5 := FX_0P5 (0.5 * (A_THIRD + 1) ); BEGIN IF EQUAL (3, 3) THEN A := FX_RNG1 (RNG1); -- A MODEL NUMBER B := FX_1 (3.0); -- A MODEL NUMBER END IF; RESULT_VALUE := FX_0P5 (A / B); IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE) OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN FAILED ("RESULT OF ""/"" OUTSIDE RESULT MODEL INTERVAL " & "WHEN A, B MODEL NUMBERS A / B NOT"); END IF; END B; -------------------------------------------------- -- CASE C) THE OPERATOR /, USING NO MODEL NUMBERS C: DECLARE A : FX_RNG1 := 0.0; B : FX_1 := 0.0; RESULT_VALUE : FX_1 := 0.0; LOWEST_ACCEPTABLE_VALUE : FX_1 := FX_1 ( RNG1 - 3.0); HIGHEST_ACCEPTABLE_VALUE : FX_1 := FX_1 ( RNG1 + 4.0); BEGIN IF EQUAL (3, 3) THEN A := FX_RNG1 (RNG1 * RNG1 / 3); -- NOT A MODEL NUMBER B := FX_1 (RNG1 / 3); -- NOT A MODEL NUMBER END IF; RESULT_VALUE := FX_1 (A / B); IF (RESULT_VALUE < LOWEST_ACCEPTABLE_VALUE) OR (RESULT_VALUE > HIGHEST_ACCEPTABLE_VALUE) THEN FAILED ("RESULT OF ""/"" OUTSIDE RESULT MODEL INTERVAL " & "WHEN USING NO MODEL NUMBERS"); END IF; END C; -------------------------------------------------- RESULT; END C45532H;