-- 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;