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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/cxg/cxg2024.a
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+-- CXG2024.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
+-- and binary fixed point numbers that result in a
+-- decimal fixed point type produce acceptable results.
+--
+-- TEST DESCRIPTION:
+-- Multiplication and division of mixed binary and decimal
+-- values are performed. Identity functions are used so
+-- that the operands of the expressions will not be seen
+-- as static by the compiler.
+--
+-- 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:
+-- 4 Apr 96 SAIC Initial release for 2.1
+-- 17 Aug 96 SAIC Removed checks for close results
+--
+--!
+
+with System;
+with Report;
+procedure CXG2024 is
+
+procedure Do_Check is
+ Num_Digits : constant := 9;
+ type Pennies is delta 0.01 digits Num_Digits;
+ type Dollars is delta 1.0 digits Num_Digits;
+
+ type Signed_Sixteenths is delta 0.0625
+ range -2.0 ** (System.Max_Mantissa-5) ..
+ 2.0 ** (System.Max_Mantissa-5) - 1.0;
+ type Unsigned_Sixteenths is delta 0.0625
+ range 0.0 .. 2.0 ** (System.Max_Mantissa-4) - 1.0;
+
+ P1 : Pennies;
+ 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 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;
+
+
+ function US (X : Unsigned_Sixteenths) return Unsigned_Sixteenths is
+ begin
+ if Report.Ident_Bool (True) then
+ return X;
+ else
+ return 321.0; -- never executed
+ end if;
+ end US;
+
+
+ function SS (X : Signed_Sixteenths) return Signed_Sixteenths is
+ begin
+ if Report.Ident_Bool (True) then
+ return X;
+ else
+ return 321.0; -- never executed
+ end if;
+ end SS;
+
+
+begin
+
+ P1 := P(0.05) * SS(-200.0);
+ if P1 /= -10.00 then
+ Report.Failed ("1 - expected -10.00 got " & Pennies'Image (P1));
+ end if;
+
+ D1 := P(0.05) * SS(-100.0);
+ if D1 /= -5.00 then
+ Report.Failed ("2 - expected -5.00 got " & Dollars'Image (D1));
+ end if;
+
+ P1 := P(0.05) * US(200.0);
+ if P1 /= 10.00 then
+ Report.Failed ("3 - expected 10.00 got " & Pennies'Image (P1));
+ end if;
+
+ D1 := P(-0.05) * US(100.0);
+ if D1 /= -5.00 then
+ Report.Failed ("4 - expected -5.00 got " & Dollars'Image (D1));
+ end if;
+
+
+
+ P1 := P(0.05) / US(1.0);
+ if P1 /= 0.05 then
+ Report.Failed ("6 - expected 0.05 got " & Pennies'Image (P1));
+ end if;
+
+
+ -- check rounding
+
+ D1 := Dollars'Round (Pennies (P(-101.00) / US(2.0)));
+ if D1 /= -51.00 then
+ Report.Failed ("11 - expected -51.00 got " & Dollars'Image (D1));
+ end if;
+
+ D1 := Dollars'Round (Pennies (P(101.00) / US(2.0)));
+ if D1 /= 51.00 then
+ Report.Failed ("12 - expected 51.00 got " & Dollars'Image (D1));
+ end if;
+
+ D1 := Dollars'Round (Pennies (SS(-101.00) / P(2.0)));
+ if D1 /= -51.00 then
+ Report.Failed ("13 - expected -51.00 got " & Dollars'Image (D1));
+ end if;
+
+ D1 := Dollars'Round (Pennies (US(101.00) / P(2.0)));
+ if D1 /= 51.00 then
+ Report.Failed ("14 - expected 51.00 got " & Dollars'Image (D1));
+ end if;
+
+
+
+ P1 := P(-102.03) / SS(-0.5);
+ if P1 /= 204.06 then
+ Report.Failed ("15 - expected 204.06 got " & Pennies'Image (P1));
+ end if;
+
+
+exception
+ when others =>
+ Report.Failed ("unexpected exception in Do_Check");
+end Do_Check;
+
+
+begin -- main
+ Report.Test ("CXG2024",
+ "Check the accuracy of multiplication and division" &
+ " of mixed decimal and binary fixed point numbers");
+
+ Do_Check;
+
+ Report.Result;
+end CXG2024;