-- CXG2024.A
|
-- CXG2024.A
|
--
|
--
|
-- Grant of Unlimited Rights
|
-- Grant of Unlimited Rights
|
--
|
--
|
-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
|
-- 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
|
-- 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 in the software and documentation contained herein.
|
-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
|
-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
|
-- this public release, the Government intends to confer upon all
|
-- this public release, the Government intends to confer upon all
|
-- recipients unlimited rights equal to those held by the Government.
|
-- recipients unlimited rights equal to those held by the Government.
|
-- These rights include rights to use, duplicate, release or disclose the
|
-- These rights include rights to use, duplicate, release or disclose the
|
-- released technical data and computer software in whole or in part, in
|
-- 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
|
-- any manner and for any purpose whatsoever, and to have or permit others
|
-- to do so.
|
-- to do so.
|
--
|
--
|
-- DISCLAIMER
|
-- DISCLAIMER
|
--
|
--
|
-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
|
-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
|
-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
|
-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
|
-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
|
-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
|
-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
|
-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
|
-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
|
-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
|
-- PARTICULAR PURPOSE OF SAID MATERIAL.
|
-- PARTICULAR PURPOSE OF SAID MATERIAL.
|
--*
|
--*
|
--
|
--
|
-- OBJECTIVE:
|
-- OBJECTIVE:
|
-- Check that multiplication and division of decimal
|
-- Check that multiplication and division of decimal
|
-- and binary fixed point numbers that result in a
|
-- and binary fixed point numbers that result in a
|
-- decimal fixed point type produce acceptable results.
|
-- decimal fixed point type produce acceptable results.
|
--
|
--
|
-- TEST DESCRIPTION:
|
-- TEST DESCRIPTION:
|
-- Multiplication and division of mixed binary and decimal
|
-- Multiplication and division of mixed binary and decimal
|
-- values are performed. Identity functions are used so
|
-- values are performed. Identity functions are used so
|
-- that the operands of the expressions will not be seen
|
-- that the operands of the expressions will not be seen
|
-- as static by the compiler.
|
-- as static by the compiler.
|
--
|
--
|
-- SPECIAL REQUIREMENTS
|
-- SPECIAL REQUIREMENTS
|
-- The Strict Mode for the numerical accuracy must be
|
-- The Strict Mode for the numerical accuracy must be
|
-- selected. The method by which this mode is selected
|
-- selected. The method by which this mode is selected
|
-- is implementation dependent.
|
-- is implementation dependent.
|
--
|
--
|
-- APPLICABILITY CRITERIA:
|
-- APPLICABILITY CRITERIA:
|
-- This test applies only to implementations supporting the
|
-- This test applies only to implementations supporting the
|
-- Numerics Annex.
|
-- Numerics Annex.
|
-- This test only applies to the Strict Mode for numerical
|
-- This test only applies to the Strict Mode for numerical
|
-- accuracy.
|
-- accuracy.
|
-- This test applies only to implementations supporting
|
-- This test applies only to implementations supporting
|
-- decimal fixed point types of at least 9 digits.
|
-- decimal fixed point types of at least 9 digits.
|
--
|
--
|
--
|
--
|
-- CHANGE HISTORY:
|
-- CHANGE HISTORY:
|
-- 4 Apr 96 SAIC Initial release for 2.1
|
-- 4 Apr 96 SAIC Initial release for 2.1
|
-- 17 Aug 96 SAIC Removed checks for close results
|
-- 17 Aug 96 SAIC Removed checks for close results
|
--
|
--
|
--!
|
--!
|
|
|
with System;
|
with System;
|
with Report;
|
with Report;
|
procedure CXG2024 is
|
procedure CXG2024 is
|
|
|
procedure Do_Check is
|
procedure Do_Check is
|
Num_Digits : constant := 9;
|
Num_Digits : constant := 9;
|
type Pennies is delta 0.01 digits Num_Digits;
|
type Pennies is delta 0.01 digits Num_Digits;
|
type Dollars is delta 1.0 digits Num_Digits;
|
type Dollars is delta 1.0 digits Num_Digits;
|
|
|
type Signed_Sixteenths is delta 0.0625
|
type Signed_Sixteenths is delta 0.0625
|
range -2.0 ** (System.Max_Mantissa-5) ..
|
range -2.0 ** (System.Max_Mantissa-5) ..
|
2.0 ** (System.Max_Mantissa-5) - 1.0;
|
2.0 ** (System.Max_Mantissa-5) - 1.0;
|
type Unsigned_Sixteenths is delta 0.0625
|
type Unsigned_Sixteenths is delta 0.0625
|
range 0.0 .. 2.0 ** (System.Max_Mantissa-4) - 1.0;
|
range 0.0 .. 2.0 ** (System.Max_Mantissa-4) - 1.0;
|
|
|
P1 : Pennies;
|
P1 : Pennies;
|
D1 : Dollars;
|
D1 : Dollars;
|
|
|
-- optimization thwarting functions
|
-- optimization thwarting functions
|
|
|
function P (X : Pennies) return Pennies is
|
function P (X : Pennies) return Pennies is
|
begin
|
begin
|
if Report.Ident_Bool (True) then
|
if Report.Ident_Bool (True) then
|
return X;
|
return X;
|
else
|
else
|
return 3.21; -- never executed
|
return 3.21; -- never executed
|
end if;
|
end if;
|
end P;
|
end P;
|
|
|
|
|
function D (X : Dollars) return Dollars is
|
function D (X : Dollars) return Dollars is
|
begin
|
begin
|
if Report.Ident_Bool (True) then
|
if Report.Ident_Bool (True) then
|
return X;
|
return X;
|
else
|
else
|
return 321.0; -- never executed
|
return 321.0; -- never executed
|
end if;
|
end if;
|
end D;
|
end D;
|
|
|
|
|
function US (X : Unsigned_Sixteenths) return Unsigned_Sixteenths is
|
function US (X : Unsigned_Sixteenths) return Unsigned_Sixteenths is
|
begin
|
begin
|
if Report.Ident_Bool (True) then
|
if Report.Ident_Bool (True) then
|
return X;
|
return X;
|
else
|
else
|
return 321.0; -- never executed
|
return 321.0; -- never executed
|
end if;
|
end if;
|
end US;
|
end US;
|
|
|
|
|
function SS (X : Signed_Sixteenths) return Signed_Sixteenths is
|
function SS (X : Signed_Sixteenths) return Signed_Sixteenths is
|
begin
|
begin
|
if Report.Ident_Bool (True) then
|
if Report.Ident_Bool (True) then
|
return X;
|
return X;
|
else
|
else
|
return 321.0; -- never executed
|
return 321.0; -- never executed
|
end if;
|
end if;
|
end SS;
|
end SS;
|
|
|
|
|
begin
|
begin
|
|
|
P1 := P(0.05) * SS(-200.0);
|
P1 := P(0.05) * SS(-200.0);
|
if P1 /= -10.00 then
|
if P1 /= -10.00 then
|
Report.Failed ("1 - expected -10.00 got " & Pennies'Image (P1));
|
Report.Failed ("1 - expected -10.00 got " & Pennies'Image (P1));
|
end if;
|
end if;
|
|
|
D1 := P(0.05) * SS(-100.0);
|
D1 := P(0.05) * SS(-100.0);
|
if D1 /= -5.00 then
|
if D1 /= -5.00 then
|
Report.Failed ("2 - expected -5.00 got " & Dollars'Image (D1));
|
Report.Failed ("2 - expected -5.00 got " & Dollars'Image (D1));
|
end if;
|
end if;
|
|
|
P1 := P(0.05) * US(200.0);
|
P1 := P(0.05) * US(200.0);
|
if P1 /= 10.00 then
|
if P1 /= 10.00 then
|
Report.Failed ("3 - expected 10.00 got " & Pennies'Image (P1));
|
Report.Failed ("3 - expected 10.00 got " & Pennies'Image (P1));
|
end if;
|
end if;
|
|
|
D1 := P(-0.05) * US(100.0);
|
D1 := P(-0.05) * US(100.0);
|
if D1 /= -5.00 then
|
if D1 /= -5.00 then
|
Report.Failed ("4 - expected -5.00 got " & Dollars'Image (D1));
|
Report.Failed ("4 - expected -5.00 got " & Dollars'Image (D1));
|
end if;
|
end if;
|
|
|
|
|
|
|
P1 := P(0.05) / US(1.0);
|
P1 := P(0.05) / US(1.0);
|
if P1 /= 0.05 then
|
if P1 /= 0.05 then
|
Report.Failed ("6 - expected 0.05 got " & Pennies'Image (P1));
|
Report.Failed ("6 - expected 0.05 got " & Pennies'Image (P1));
|
end if;
|
end if;
|
|
|
|
|
-- check rounding
|
-- check rounding
|
|
|
D1 := Dollars'Round (Pennies (P(-101.00) / US(2.0)));
|
D1 := Dollars'Round (Pennies (P(-101.00) / US(2.0)));
|
if D1 /= -51.00 then
|
if D1 /= -51.00 then
|
Report.Failed ("11 - expected -51.00 got " & Dollars'Image (D1));
|
Report.Failed ("11 - expected -51.00 got " & Dollars'Image (D1));
|
end if;
|
end if;
|
|
|
D1 := Dollars'Round (Pennies (P(101.00) / US(2.0)));
|
D1 := Dollars'Round (Pennies (P(101.00) / US(2.0)));
|
if D1 /= 51.00 then
|
if D1 /= 51.00 then
|
Report.Failed ("12 - expected 51.00 got " & Dollars'Image (D1));
|
Report.Failed ("12 - expected 51.00 got " & Dollars'Image (D1));
|
end if;
|
end if;
|
|
|
D1 := Dollars'Round (Pennies (SS(-101.00) / P(2.0)));
|
D1 := Dollars'Round (Pennies (SS(-101.00) / P(2.0)));
|
if D1 /= -51.00 then
|
if D1 /= -51.00 then
|
Report.Failed ("13 - expected -51.00 got " & Dollars'Image (D1));
|
Report.Failed ("13 - expected -51.00 got " & Dollars'Image (D1));
|
end if;
|
end if;
|
|
|
D1 := Dollars'Round (Pennies (US(101.00) / P(2.0)));
|
D1 := Dollars'Round (Pennies (US(101.00) / P(2.0)));
|
if D1 /= 51.00 then
|
if D1 /= 51.00 then
|
Report.Failed ("14 - expected 51.00 got " & Dollars'Image (D1));
|
Report.Failed ("14 - expected 51.00 got " & Dollars'Image (D1));
|
end if;
|
end if;
|
|
|
|
|
|
|
P1 := P(-102.03) / SS(-0.5);
|
P1 := P(-102.03) / SS(-0.5);
|
if P1 /= 204.06 then
|
if P1 /= 204.06 then
|
Report.Failed ("15 - expected 204.06 got " & Pennies'Image (P1));
|
Report.Failed ("15 - expected 204.06 got " & Pennies'Image (P1));
|
end if;
|
end if;
|
|
|
|
|
exception
|
exception
|
when others =>
|
when others =>
|
Report.Failed ("unexpected exception in Do_Check");
|
Report.Failed ("unexpected exception in Do_Check");
|
end Do_Check;
|
end Do_Check;
|
|
|
|
|
begin -- main
|
begin -- main
|
Report.Test ("CXG2024",
|
Report.Test ("CXG2024",
|
"Check the accuracy of multiplication and division" &
|
"Check the accuracy of multiplication and division" &
|
" of mixed decimal and binary fixed point numbers");
|
" of mixed decimal and binary fixed point numbers");
|
|
|
Do_Check;
|
Do_Check;
|
|
|
Report.Result;
|
Report.Result;
|
end CXG2024;
|
end CXG2024;
|
|
|
