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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/ada/acats/tests/cxf/cxf2002.a
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+-- CXF2002.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 the operand and result types are the same.
+--
+-- Check that if the mathematical result is between multiples of the
+-- small of the result type, the result is truncated toward zero.
+-- Check that if the attribute 'Round is applied to the mathematical
+-- result, however, the result is rounded to the nearest multiple of
+-- the small (away from zero if the result is midway between two
+-- multiples of the small).
+--
+-- TEST DESCRIPTION:
+-- Two decimal fixed point types are declared, one with a Machine_Radix
+-- value of 2, and one with a value of 10. For each type, checks are
+-- performed on the following operations, where the operand and result
+-- types are the same:
+--
+-- - Multiplication.
+-- - Multiplication, where the attribute 'Round is applied to the
+-- result.
+-- - Division.
+-- - Division, where the attribute 'Round is applied to the result.
+--
+-- Each operation is performed within a loop, where one operand is
+-- always the same variable. After the loop completes, the cumulative
+-- total contained in this variable is compared with the expected
+-- result.
+--
+-- APPLICABILITY CRITERIA:
+-- This test is only applicable for a compiler attempting validation
+-- for the Information Systems Annex.
+--
+--
+-- CHANGE HISTORY:
+-- 27 Mar 96 SAIC Prerelease version for ACVC 2.1.
+--
+--!
+
+generic
+ type Decimal_Fixed is delta <> digits <>;
+package CXF2002_0 is
+
+ procedure Multiply_And_Truncate (Balance : in out Decimal_Fixed;
+ Factor : in Decimal_Fixed);
+
+ procedure Divide_And_Truncate (Balance : in out Decimal_Fixed;
+ Divisor : in Decimal_Fixed);
+
+ procedure Multiply_And_Round (Balance : in out Decimal_Fixed;
+ Factor : in Decimal_Fixed);
+
+ procedure Divide_And_Round (Balance : in out Decimal_Fixed;
+ Divisor : in Decimal_Fixed);
+
+end CXF2002_0;
+
+
+ --==================================================================--
+
+
+package body CXF2002_0 is
+
+ procedure Multiply_And_Truncate (Balance : in out Decimal_Fixed;
+ Factor : in Decimal_Fixed) is
+ Interest : Decimal_Fixed;
+ begin
+ Interest := Factor * Balance; -- Fixed-fixed multiplication.
+ Balance := Balance + Interest;
+ end Multiply_And_Truncate;
+
+
+ procedure Divide_And_Truncate (Balance : in out Decimal_Fixed;
+ Divisor : in Decimal_Fixed) is
+ Interest : Decimal_Fixed;
+ begin
+ Interest := Balance / Divisor; -- Fixed-fixed division.
+ Balance := Balance + Interest;
+ end Divide_And_Truncate;
+
+
+ procedure Multiply_And_Round (Balance : in out Decimal_Fixed;
+ Factor : in Decimal_Fixed) is
+ Interest : Decimal_Fixed;
+ begin
+ -- Fixed-fixed multiplication.
+ Interest := Decimal_Fixed'Round ( Factor * Balance );
+ Balance := Balance + Interest;
+ end Multiply_And_Round;
+
+
+ procedure Divide_And_Round (Balance : in out Decimal_Fixed;
+ Divisor : in Decimal_Fixed) is
+ Interest : Decimal_Fixed;
+ begin
+ -- Fixed-fixed division.
+ Interest := Decimal_Fixed'Round ( Balance / Divisor );
+ Balance := Balance + Interest;
+ end Divide_And_Round;
+
+end CXF2002_0;
+
+
+ --==================================================================--
+
+
+package CXF2002_1 is
+
+ 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
+
+
+ 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
+
+end CXF2002_1;
+
+
+ --==================================================================--
+
+
+with CXF2002_0;
+with CXF2002_1;
+
+with Report;
+procedure CXF2002 is
+
+ Loop_Count : constant := 300;
+ type Loop_Range is range 1 .. Loop_Count;
+
+begin
+
+ Report.Test ("CXF2002", "Check decimal multiplication and division, and " &
+ "'Round, where the operand and result types are " &
+ "the same");
+
+
+ ---=---=---=---=---=---=---=---=---=---=---
+
+
+ RADIX_2_SUBTESTS:
+ declare
+ package Radix_2 is new CXF2002_0 (CXF2002_1.Money_Radix2);
+ use type CXF2002_1.Money_Radix2;
+ begin
+
+ RADIX_2_MULTIPLICATION:
+ declare
+ Rate : constant CXF2002_1.Money_Radix2 := 0.12;
+ Period : constant Integer := 12;
+ Factor : CXF2002_1.Money_Radix2 := Rate / Period;
+
+ Initial : constant CXF2002_1.Money_Radix2 := 100_000.00;
+ Trunc_Expected : constant CXF2002_1.Money_Radix2 := 1_978_837.50;
+ Round_Expected : constant CXF2002_1.Money_Radix2 := 1_978_846.75;
+
+ Balance : CXF2002_1.Money_Radix2;
+ begin
+ ---=---=---=---=---=---=---
+
+ Balance := Initial;
+
+ for I in Loop_Range loop
+ Radix_2.Multiply_And_Truncate (Balance, Factor);
+ end loop;
+
+ if Balance /= Trunc_Expected then
+ Report.Failed ("Wrong result: Radix 2 multiply and truncate");
+ end if;
+
+ ---=---=---=---=---=---=---
+
+ Balance := Initial;
+
+ for I in Loop_Range loop
+ Radix_2.Multiply_And_Round (Balance, Factor);
+ end loop;
+
+ if Balance /= Round_Expected then
+ Report.Failed ("Wrong result: Radix 2 multiply and round");
+ end if;
+
+ ---=---=---=---=---=---=---
+ end RADIX_2_MULTIPLICATION;
+
+
+ RADIX_2_DIVISION:
+ declare
+ Rate : constant CXF2002_1.Money_Radix2 := 0.25;
+ Period : constant Integer := 12;
+ Factor : CXF2002_1.Money_Radix2 := Rate / Period;
+ Divisor : constant CXF2002_1.Money_Radix2 := 1.0 / Factor;
+
+ Initial : constant CXF2002_1.Money_Radix2 := 5_500.36;
+ Trunc_Expected : constant CXF2002_1.Money_Radix2 := 2_091_332.87;
+ Round_Expected : constant CXF2002_1.Money_Radix2 := 2_091_436.88;
+
+ Balance : CXF2002_1.Money_Radix2;
+ begin
+ ---=---=---=---=---=---=---
+
+ Balance := Initial;
+
+ for I in Loop_Range loop
+ Radix_2.Divide_And_Truncate (Balance, Divisor);
+ end loop;
+
+ if Balance /= Trunc_Expected then
+ Report.Failed ("Wrong result: Radix 2 divide and truncate");
+ end if;
+
+ ---=---=---=---=---=---=---
+
+ Balance := Initial;
+
+ for I in Loop_Range loop
+ Radix_2.Divide_And_Round (Balance, Divisor);
+ end loop;
+
+ if Balance /= Round_Expected then
+ Report.Failed ("Wrong result: Radix 2 divide and round");
+ end if;
+
+ ---=---=---=---=---=---=---
+ end RADIX_2_DIVISION;
+
+ end RADIX_2_SUBTESTS;
+
+
+ ---=---=---=---=---=---=---=---=---=---=---
+
+
+ RADIX_10_SUBTESTS:
+ declare
+ package Radix_10 is new CXF2002_0 (CXF2002_1.Money_Radix10);
+ use type CXF2002_1.Money_Radix10;
+ begin
+
+ RADIX_10_MULTIPLICATION:
+ declare
+ Rate : constant CXF2002_1.Money_Radix10 := 0.37;
+ Period : constant Integer := 12;
+ Factor : CXF2002_1.Money_Radix10 := Rate / Period;
+
+ Initial : constant CXF2002_1.Money_Radix10 := 459.33;
+ Trunc_Expected : constant CXF2002_1.Money_Radix10 := 3_259_305.54;
+ Round_Expected : constant CXF2002_1.Money_Radix10 := 3_260_544.11;
+
+ Balance : CXF2002_1.Money_Radix10;
+ begin
+ ---=---=---=---=---=---=---
+
+ Balance := Initial;
+
+ for I in Loop_Range loop
+ Radix_10.Multiply_And_Truncate (Balance, Factor);
+ end loop;
+
+ if Balance /= Trunc_Expected then
+ Report.Failed ("Wrong result: Radix 10 multiply and truncate");
+ end if;
+
+ ---=---=---=---=---=---=---
+
+ Balance := Initial;
+
+ for I in Loop_Range loop
+ Radix_10.Multiply_And_Round (Balance, Factor);
+ end loop;
+
+ if Balance /= Round_Expected then
+ Report.Failed ("Wrong result: Radix 10 multiply and round");
+ end if;
+
+ ---=---=---=---=---=---=---
+ end RADIX_10_MULTIPLICATION;
+
+
+ RADIX_10_DIVISION:
+ declare
+ Rate : constant CXF2002_1.Money_Radix10 := 0.15;
+ Period : constant Integer := 12;
+ Factor : CXF2002_1.Money_Radix10 := Rate / Period;
+ Divisor : constant CXF2002_1.Money_Radix10 := 1.0 / Factor;
+
+ Initial : constant CXF2002_1.Money_Radix10 := 29_842.08;
+ Trunc_Expected : constant CXF2002_1.Money_Radix10 := 590_519.47;
+ Round_Expected : constant CXF2002_1.Money_Radix10 := 590_528.98;
+
+ Balance : CXF2002_1.Money_Radix10;
+ begin
+ ---=---=---=---=---=---=---
+
+ Balance := Initial;
+
+ for I in Loop_Range loop
+ Radix_10.Divide_And_Truncate (Balance, Divisor);
+ end loop;
+
+ if Balance /= Trunc_Expected then
+ Report.Failed ("Wrong result: Radix 10 divide and truncate");
+ end if;
+
+ ---=---=---=---=---=---=---
+
+ Balance := Initial;
+
+ for I in Loop_Range loop
+ Radix_10.Divide_And_Round (Balance, Divisor);
+ end loop;
+
+ if Balance /= Round_Expected then
+ Report.Failed ("Wrong result: Radix 10 divide and round");
+ end if;
+
+ ---=---=---=---=---=---=---
+ end RADIX_10_DIVISION;
+
+ end RADIX_10_SUBTESTS;
+
+
+ ---=---=---=---=---=---=---=---=---=---=---
+
+
+ Report.Result;
+
+end CXF2002;