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+-- C45532F.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 LESS THAN 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 10/19/87 SHORTENED LINES CONTAINING MORE THAN 72 CHARACTERS.
+-- 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 C45532F IS
+
+ USE REPORT;
+
+ MIN_WORD_LENGTH : CONSTANT := 16; -- MUST BE EVEN & >= 6
+ FULL_SCALE : CONSTANT := 2 ** (MIN_WORD_LENGTH - 1);
+ FORTH : CONSTANT := FULL_SCALE / 4;
+ A_THIRD : CONSTANT := FULL_SCALE / 3;
+ DEL1 : CONSTANT := 0.5 / FULL_SCALE;
+ TYPE FX_0P5 IS DELTA DEL1 * 1 RANGE -0.5 ..
+ 0.5 - DEL1 * 1;
+ TYPE FX_1 IS DELTA DEL1 * 2 RANGE -1.0 ..
+ 1.0 - DEL1 * 2;
+ TYPE FX_2 IS DELTA DEL1 * 4 RANGE -2.0 ..
+ 2.0 - DEL1 * 4;
+
+BEGIN TEST ("C45532F", "FIXED POINT OPERATOR ""/""" );
+
+ --------------------------------------------------
+
+ -- CASE A) THE OPERATOR /, A, B, AND A / B ALL MODEL NUMBERS.
+
+A: DECLARE
+ A : FX_0P5 := 0.0;
+ B : FX_1 := 0.0;
+ RESULT_VALUE : FX_2 := 0.0;
+ LOWEST_ACCEPTABLE_VALUE : FX_2 := FX_2 (0.5);
+ HIGHEST_ACCEPTABLE_VALUE : FX_2 := FX_2 (0.5);
+ BEGIN
+ IF EQUAL (3, 3) THEN
+ A := FX_0P5 (0.125); -- A MODEL NUMBER
+ B := FX_1 (0.25); -- A MODEL NUMBER
+ END IF;
+
+ RESULT_VALUE := FX_2 (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_0P5 := 0.0;
+ B : FX_0P5 := 0.0;
+ RESULT_VALUE : FX_1 := 0.0;
+ LOWEST_ACCEPTABLE_VALUE : FX_1
+ := FX_1 (2 * DEL1 * A_THIRD);
+ HIGHEST_ACCEPTABLE_VALUE : FX_1
+ := FX_1 (2 * DEL1 * (A_THIRD + 1) );
+ BEGIN
+ IF EQUAL (3, 3) THEN
+ A := FX_0P5 (DEL1 * 1); -- A MODEL NUMBER
+ B := FX_0P5 (DEL1 * 3); -- 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 A, B MODEL NUMBERS A / B NOT");
+ END IF;
+ END B;
+
+ --------------------------------------------------
+
+ -- CASE C) THE OPERATOR /, USING NO MODEL NUMBERS
+
+C: DECLARE
+ A : FX_1 := 0.0;
+ B : FX_1 := 0.0;
+ RESULT_VALUE : FX_0P5 := 0.0;
+ LOW_COUNT : CONSTANT := 2 * A_THIRD;
+ -- := (2 * FULL_SCALE * (2 * FORTH + 0))
+ -- / (6 * FORTH + 2);
+ HIGH_COUNT : CONSTANT := 2 * A_THIRD + 4;
+ -- := (2 * FULL_SCALE * (2 * FORTH + 2))
+ -- / (6 * FORTH + 0);
+ LOWEST_ACCEPTABLE_VALUE : FX_0P5
+ := FX_0P5 (DEL1 * LOW_COUNT );
+ HIGHEST_ACCEPTABLE_VALUE : FX_0P5
+ := FX_0P5 (DEL1 * HIGH_COUNT );
+ BEGIN
+ IF EQUAL (3, 3) THEN -- A AND B NOT MODEL NUMBERS
+ A := FX_1 (DEL1 * (2 * FORTH + 1));
+ B := FX_1 (DEL1 * (6 * FORTH + 1));
+ 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 USING NO MODEL NUMBERS");
+ END IF;
+ END C;
+
+ --------------------------------------------------
+
+
+ RESULT;
+
+END C45532F;