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--- CXG2023.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 multiplication and division of decimal fixed point
--- numbers produce exact results.
---
--- TEST DESCRIPTION:
--- Check that multiplication and division of decimal fixed point
--- numbers produce exact results.
---
--- SPECIAL REQUIREMENTS
--- The Strict Mode for the numerical accuracy must be
--- selected. The method by which this mode is selected
--- is implementation dependent.
---
--- APPLICABILITY CRITERIA:
--- This test applies only to implementations supporting the
--- Numerics Annex.
--- This test only applies to the Strict Mode for numerical
--- accuracy.
--- This test applies only to implementations supporting
--- decimal fixed point types of at least 9 digits.
---
---
--- CHANGE HISTORY:
--- 3 Apr 96 SAIC Initial release for 2.1
---
---!
-
-with System;
-with Report;
-procedure CXG2023 is
- Verbose : constant Boolean := False;
-
-procedure Check_1 is
- Num_Digits : constant := 6;
- type Pennies is delta 0.01 digits Num_Digits;
- type Franklins is delta 100.0 digits Num_Digits;
- type Dollars is delta 1.0 digits Num_Digits;
-
- P1 : Pennies;
- F1 : Franklins;
- D1 : Dollars;
-
- -- optimization thwarting functions
-
- function P (X : Pennies) return Pennies is
- begin
- if Report.Ident_Bool (True) then
- return X;
- else
- return 3.21; -- never executed
- end if;
- end P;
-
-
- function F (X : Franklins) return Franklins is
- begin
- if Report.Ident_Bool (True) then
- return X;
- else
- return 32100.0; -- never executed
- end if;
- end F;
-
-
- function D (X : Dollars) return Dollars is
- begin
- if Report.Ident_Bool (True) then
- return X;
- else
- return 321.0; -- never executed
- end if;
- end D;
-
-
-begin
- -- multiplication where one operand is universal real
-
- P1 := P(0.05) * 200.0;
- if P1 /= 10.00 then
- Report.Failed ("1 - expected 10.00 got " & Pennies'Image (P1));
- end if;
-
- D1 := P(0.05) * 100.0;
- if D1 /= 5.00 then
- Report.Failed ("2 - expected 5.00 got " & Dollars'Image (D1));
- end if;
-
- F1 := P(0.05) * 50_000.0;
- if F1 /= 2500.00 then
- Report.Failed ("3 - expected 2500.0 got " & Franklins'Image (F1));
- end if;
-
- -- multiplication where both operands are decimal fixed
-
- P1 := P(0.05) * D(-200.0);
- if P1 /= -10.00 then
- Report.Failed ("4 - expected -10.00 got " & Pennies'Image (P1));
- end if;
-
- D1 := P(0.05) * P(-100.0);
- if D1 /= -5.00 then
- Report.Failed ("5 - expected -5.00 got " & Dollars'Image (D1));
- end if;
-
- F1 := P(-0.05) * F(50_000.0);
- if F1 /= -2500.00 then
- Report.Failed ("6 - expected -2500.0 got " & Franklins'Image (F1));
- end if;
-
- -- division where one operand is universal real
-
- P1 := P(0.05) / 0.001;
- if P1 /= 50.00 then
- Report.Failed ("7 - expected 50.00 got " & Pennies'Image (P1));
- end if;
-
- D1 := D(1000.0) / 3.0;
- if D1 /= 333.00 then
- Report.Failed ("8 - expected 333.00 got " & Dollars'Image (D1));
- end if;
-
- F1 := P(1234.56) / 0.0001;
- if F1 /= 12345600.00 then
- Report.Failed ("9 - expected 12345600.0 got " & Franklins'Image (F1));
- end if;
-
-
- -- division where both operands are decimal fixed
-
- P1 := P(0.05) / D(1.0);
- if P1 /= 0.05 then
- Report.Failed ("10 - expected 0.05 got " & Pennies'Image (P1));
- end if;
-
- -- check for truncation toward 0
- D1 := P(-101.00) / P(2.0);
- if D1 /= -50.00 then
- Report.Failed ("11 - expected -50.00 got " & Dollars'Image (D1));
- end if;
-
- P1 := P(-102.03) / P(-0.5);
- if P1 /= 204.06 then
- Report.Failed ("12 - expected 204.06 got " & Pennies'Image (P1));
- end if;
-
- F1 := P(876.54) / P(0.03);
- if F1 /= 29200.00 then
- Report.Failed ("13 - expected 29200.0 got " & Franklins'Image (F1));
- end if;
-
-exception
- when others =>
- Report.Failed ("unexpected exception in Check_1");
-end Check_1;
-
-generic
- type Pennies is delta<> digits<>;
- type Dollars is delta<> digits<>;
- type Franklins is delta<> digits<>;
-procedure Generic_Check;
-procedure Generic_Check is
-
- -- the following code is copied directly from the
- -- above procedure Check_1
-
- P1 : Pennies;
- F1 : Franklins;
- D1 : Dollars;
-
- -- optimization thwarting functions
-
- function P (X : Pennies) return Pennies is
- begin
- if Report.Ident_Bool (True) then
- return X;
- else
- return 3.21; -- never executed
- end if;
- end P;
-
-
- function F (X : Franklins) return Franklins is
- begin
- if Report.Ident_Bool (True) then
- return X;
- else
- return 32100.0; -- never executed
- end if;
- end F;
-
-
- function D (X : Dollars) return Dollars is
- begin
- if Report.Ident_Bool (True) then
- return X;
- else
- return 321.0; -- never executed
- end if;
- end D;
-
-
-begin
- -- multiplication where one operand is universal real
-
- P1 := P(0.05) * 200.0;
- if P1 /= 10.00 then
- Report.Failed ("1 - expected 10.00 got " & Pennies'Image (P1));
- end if;
-
- D1 := P(0.05) * 100.0;
- if D1 /= 5.00 then
- Report.Failed ("2 - expected 5.00 got " & Dollars'Image (D1));
- end if;
-
- F1 := P(0.05) * 50_000.0;
- if F1 /= 2500.00 then
- Report.Failed ("3 - expected 2500.0 got " & Franklins'Image (F1));
- end if;
-
- -- multiplication where both operands are decimal fixed
-
- P1 := P(0.05) * D(-200.0);
- if P1 /= -10.00 then
- Report.Failed ("4 - expected -10.00 got " & Pennies'Image (P1));
- end if;
-
- D1 := P(0.05) * P(-100.0);
- if D1 /= -5.00 then
- Report.Failed ("5 - expected -5.00 got " & Dollars'Image (D1));
- end if;
-
- F1 := P(-0.05) * F(50_000.0);
- if F1 /= -2500.00 then
- Report.Failed ("6 - expected -2500.0 got " & Franklins'Image (F1));
- end if;
-
- -- division where one operand is universal real
-
- P1 := P(0.05) / 0.001;
- if P1 /= 50.00 then
- Report.Failed ("7 - expected 50.00 got " & Pennies'Image (P1));
- end if;
-
- D1 := D(1000.0) / 3.0;
- if D1 /= 333.00 then
- Report.Failed ("8 - expected 333.00 got " & Dollars'Image (D1));
- end if;
-
- F1 := P(1234.56) / 0.0001;
- if F1 /= 12345600.00 then
- Report.Failed ("9 - expected 12345600.0 got " & Franklins'Image (F1));
- end if;
-
-
- -- division where both operands are decimal fixed
-
- P1 := P(0.05) / D(1.0);
- if P1 /= 0.05 then
- Report.Failed ("10 - expected 0.05 got " & Pennies'Image (P1));
- end if;
-
- -- check for truncation toward 0
- D1 := P(-101.00) / P(2.0);
- if D1 /= -50.00 then
- Report.Failed ("11 - expected -50.00 got " & Dollars'Image (D1));
- end if;
-
- P1 := P(-102.03) / P(-0.5);
- if P1 /= 204.06 then
- Report.Failed ("12 - expected 204.06 got " & Pennies'Image (P1));
- end if;
-
- F1 := P(876.54) / P(0.03);
- if F1 /= 29200.00 then
- Report.Failed ("13 - expected 29200.0 got " & Franklins'Image (F1));
- end if;
-
-end Generic_Check;
-
-
-procedure Check_G6 is
- Num_Digits : constant := 6;
- type Pennies is delta 0.01 digits Num_Digits;
- type Franklins is delta 100.0 digits Num_Digits;
- type Dollars is delta 1.0 digits Num_Digits;
-
- procedure G is new Generic_Check (Pennies, Dollars, Franklins);
-begin
- G;
-end Check_G6;
-
-
-procedure Check_G9 is
- Num_Digits : constant := 9;
- type Pennies is delta 0.01 digits Num_Digits;
- type Franklins is delta 100.0 digits Num_Digits;
- type Dollars is delta 1.0 digits Num_Digits;
-
- procedure G is new Generic_Check (Pennies, Dollars, Franklins);
-begin
- G;
-end Check_G9;
-
-
-begin -- main
- Report.Test ("CXG2023",
- "Check the accuracy of multiplication and division" &
- " of decimal fixed point numbers");
-
- if Verbose then
- Report.Comment ("starting Check_1");
- end if;
- Check_1;
-
- if Verbose then
- Report.Comment ("starting Check_G6");
- end if;
- Check_G6;
-
- if Verbose then
- Report.Comment ("starting Check_G9");
- end if;
- Check_G9;
-
- Report.Result;
-end CXG2023;
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