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-- CXF2005.A
--
-- 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 multiplying operators for a decimal fixed point type
-- return values that are integral multiples of the small of the type.
-- Check the case where one operand is of the predefined type Integer.
--
-- TEST DESCRIPTION:
-- Two decimal fixed point types A and B are declared, one with a
-- Machine_Radix value of 2, and one with a value of 10. A variable of
-- each type is multiplied repeatedly by a series of different Integer
-- values. A cumulative result is kept and compared to an expected
-- final result. Similar checks are performed for division.
--
-- APPLICABILITY CRITERIA:
-- This test is only applicable for a compiler attempting validation
-- for the Information Systems Annex.
--
--
-- CHANGE HISTORY:
-- 28 Mar 96 SAIC Prerelease version for ACVC 2.1.
--
--!
generic
type Decimal_Fixed is delta <> digits <>;
package CXF2005_0 is
function Multiply (Operand : Decimal_Fixed;
Interval : Integer) return Decimal_Fixed;
function Divide (Operand : Decimal_Fixed;
Interval : Integer) return Decimal_Fixed;
end CXF2005_0;
--==================================================================--
package body CXF2005_0 is
function Multiply (Operand : Decimal_Fixed;
Interval : Integer) return Decimal_Fixed is
begin
return Operand * Interval; -- Fixed-Integer multiplication.
end Multiply;
function Divide (Operand : Decimal_Fixed;
Interval : Integer) return Decimal_Fixed is
begin
return Operand / Interval; -- Fixed-Integer division.
end Divide;
end CXF2005_0;
--==================================================================--
package CXF2005_1 is
---=---=---=---=---=---=---=---=---=---=---
type Interest_Rate is delta 0.001 range 0.0 .. 1_000.0;
for Interest_Rate'Small use 0.001; -- Power of 10.
---=---=---=---=---=---=---=---=---=---=---
type Money_Radix2 is delta 0.01 digits 11; -- range -999,999,999.99 ..
for Money_Radix2'Machine_Radix use 2; -- +999,999,999.99
function Factor (Rate : Interest_Rate;
Interval : Integer) return Money_Radix2;
---=---=---=---=---=---=---=---=---=---=---
type Money_Radix10 is delta 0.01 digits 11; -- range -999,999,999.99 ..
for Money_Radix10'Machine_Radix use 10; -- +999,999,999.99
function Factor (Rate : Interest_Rate;
Interval : Integer) return Money_Radix10;
---=---=---=---=---=---=---=---=---=---=---
end CXF2005_1;
--==================================================================--
package body CXF2005_1 is
---=---=---=---=---=---=---=---=---=---=---
function Factor (Rate : Interest_Rate;
Interval : Integer) return Money_Radix2 is
begin
return Money_Radix2( Rate / Interval );
end Factor;
---=---=---=---=---=---=---=---=---=---=---
function Factor (Rate : Interest_Rate;
Interval : Integer) return Money_Radix10 is
begin
return Money_Radix10( Rate / Interval );
end Factor;
---=---=---=---=---=---=---=---=---=---=---
end CXF2005_1;
--==================================================================--
with CXF2005_0;
with CXF2005_1;
with Report;
procedure CXF2005 is
Loop_Count : constant := 25_000;
type Loop_Range is range 1 .. Loop_Count;
begin
Report.Test ("CXF2005", "Check decimal multiplication and division, " &
"where one operand type is Integer");
---=---=---=---=---=---=---=---=---=---=---
RADIX_2_SUBTESTS:
declare
package Radix_2 is new CXF2005_0 (CXF2005_1.Money_Radix2);
use type CXF2005_1.Money_Radix2;
begin
RADIX_2_MULTIPLICATION:
declare
Rate : constant CXF2005_1.Interest_Rate := 0.127;
Period : constant Integer := 12;
Expected : constant CXF2005_1.Money_Radix2 := 2_624.88;
Balance : CXF2005_1.Money_Radix2 := 1_000.00;
Operand : CXF2005_1.Money_Radix2;
Increment : CXF2005_1.Money_Radix2;
Interval : Integer;
begin
for I in Loop_Range loop
Interval := (Integer(I) mod Period) + 1; -- Range from 1 to 12.
Operand := CXF2005_1.Factor (Rate, Period);
Increment := Radix_2.Multiply (Operand, Interval);
Balance := Balance + Increment;
end loop;
if Balance /= Expected then
Report.Failed ("Error: Radix 2 multiply");
end if;
end RADIX_2_MULTIPLICATION;
RADIX_2_DIVISION:
declare
Rate : constant CXF2005_1.Interest_Rate := 0.377;
Period : constant Integer := 12;
Expected : constant CXF2005_1.Money_Radix2 := 36_215.58;
Balance : CXF2005_1.Money_Radix2 := 456_985.01;
Operand : CXF2005_1.Money_Radix2;
Increment : CXF2005_1.Money_Radix2;
Interval : Integer;
begin
for I in Loop_Range loop
Interval := (Integer(I+1000) mod (200*Period)) + 1; -- 1 .. 2400.
Operand := CXF2005_1.Factor (Rate, Period);
Increment := Radix_2.Divide (Balance, Interval);
Balance := Balance - (Operand * Increment);
end loop;
if Balance /= Expected then
Report.Failed ("Error: Radix 2 divide");
end if;
end RADIX_2_DIVISION;
end RADIX_2_SUBTESTS;
---=---=---=---=---=---=---=---=---=---=---
RADIX_10_SUBTESTS:
declare
package Radix_10 is new CXF2005_0 (CXF2005_1.Money_Radix10);
use type CXF2005_1.Money_Radix10;
begin
RADIX_10_MULTIPLICATION:
declare
Rate : constant CXF2005_1.Interest_Rate := 0.721;
Period : constant Integer := 12;
Expected : constant CXF2005_1.Money_Radix10 := 9_875.62;
Balance : CXF2005_1.Money_Radix10 := 126.34;
Operand : CXF2005_1.Money_Radix10;
Increment : CXF2005_1.Money_Radix10;
Interval : Integer;
begin
for I in Loop_Range loop
Interval := (Integer(I) mod Period) + 1; -- Range from 1 to 12.
Operand := CXF2005_1.Factor (Rate, Period);
Increment := Radix_10.Multiply (Operand, Interval);
Balance := Balance + Increment;
end loop;
if Balance /= Expected then
Report.Failed ("Error: Radix 10 multiply");
end if;
end RADIX_10_MULTIPLICATION;
RADIX_10_DIVISION:
declare
Rate : constant CXF2005_1.Interest_Rate := 0.547;
Period : constant Integer := 12;
Expected : constant CXF2005_1.Money_Radix10 := 26_116.37;
Balance : CXF2005_1.Money_Radix10 := 770_082.46;
Operand : CXF2005_1.Money_Radix10;
Increment : CXF2005_1.Money_Radix10;
Interval : Integer;
begin
for I in Loop_Range loop
Interval := (Integer(I+1000) mod (200*Period)) + 1; -- 1 .. 2400.
Operand := CXF2005_1.Factor (Rate, Period);
Increment := Radix_10.Divide (Balance, Interval);
Balance := Balance - (Operand * Increment);
end loop;
if Balance /= Expected then
Report.Failed ("Error: Radix 10 divide");
end if;
end RADIX_10_DIVISION;
end RADIX_10_SUBTESTS;
---=---=---=---=---=---=---=---=---=---=---
Report.Result;
end CXF2005;
|
