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jeremybenn |
-- CXG2003.A
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--
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-- Grant of Unlimited Rights
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--
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-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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-- unlimited rights in the software and documentation contained herein.
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-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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-- this public release, the Government intends to confer upon all
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-- recipients unlimited rights equal to those held by the Government.
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-- These rights include rights to use, duplicate, release or disclose the
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-- released technical data and computer software in whole or in part, in
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-- any manner and for any purpose whatsoever, and to have or permit others
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-- to do so.
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--
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-- DISCLAIMER
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--
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--
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-- OBJECTIVE:
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-- Check that the sqrt function returns
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-- results that are within the error bound allowed.
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--
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-- TEST DESCRIPTION:
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-- This test contains three test packages that are almost
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-- identical. The first two packages differ only in the
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-- floating point type that is being tested. The first
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-- and third package differ only in whether the generic
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-- elementary functions package or the pre-instantiated
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-- package is used.
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-- The test package is not generic so that the arguments
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-- and expected results for some of the test values
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-- can be expressed as universal real instead of being
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-- computed at runtime.
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--
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-- SPECIAL REQUIREMENTS
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-- The Strict Mode for the numerical accuracy must be
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-- selected. The method by which this mode is selected
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-- is implementation dependent.
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--
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-- APPLICABILITY CRITERIA:
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-- This test applies only to implementations supporting the
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-- Numerics Annex.
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-- This test only applies to the Strict Mode for numerical
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-- accuracy.
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--
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--
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-- CHANGE HISTORY:
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-- 2 FEB 96 SAIC Initial release for 2.1
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-- 18 AUG 96 SAIC Made Check consistent with other tests.
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--
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--!
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with System;
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with Report;
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with Ada.Numerics.Generic_Elementary_Functions;
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with Ada.Numerics.Elementary_Functions;
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procedure CXG2003 is
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Verbose : constant Boolean := False;
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package Float_Check is
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subtype Real is Float;
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procedure Do_Test;
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end Float_Check;
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package body Float_Check is
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package Elementary_Functions is new
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Ada.Numerics.Generic_Elementary_Functions (Real);
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function Sqrt (X : Real) return Real renames
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Elementary_Functions.Sqrt;
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function Log (X : Real) return Real renames
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Elementary_Functions.Log;
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function Exp (X : Real) return Real renames
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Elementary_Functions.Exp;
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-- The default Maximum Relative Error is the value specified
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-- in the LRM.
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Default_MRE : constant Real := 2.0;
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procedure Check (Actual, Expected : Real;
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Test_Name : String;
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MRE : Real := Default_MRE) is
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Rel_Error : Real;
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Abs_Error : Real;
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Max_Error : Real;
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begin
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-- In the case where the expected result is very small or 0
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-- we compute the maximum error as a multiple of Model_Epsilon instead
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-- of Model_Epsilon and Expected.
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Rel_Error := MRE * abs Expected * Real'Model_Epsilon;
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Abs_Error := MRE * Real'Model_Epsilon;
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if Rel_Error > Abs_Error then
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Max_Error := Rel_Error;
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else
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Max_Error := Abs_Error;
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end if;
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if abs (Actual - Expected) > Max_Error then
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Report.Failed (Test_Name &
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" actual: " & Real'Image (Actual) &
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" expected: " & Real'Image (Expected) &
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" difference: " &
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Real'Image (Actual - Expected) &
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" mre:" & Real'Image (Max_Error) );
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elsif Verbose then
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if Actual = Expected then
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Report.Comment (Test_Name & " exact result");
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else
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Report.Comment (Test_Name & " passed");
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end if;
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end if;
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end Check;
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procedure Argument_Range_Check (A, B : Real;
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Test : String) is
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-- test a logarithmically distributed selection of
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-- arguments selected from the range A to B.
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X : Real;
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Expected : Real;
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Y : Real;
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C : Real := Log(B/A);
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Max_Samples : constant := 1000;
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begin
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for I in 1..Max_Samples loop
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Expected := A * Exp(C * Real (I) / Real (Max_Samples));
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X := Expected * Expected;
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Y := Sqrt (X);
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-- note that since the expected value is computed, we
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-- must take the error in that computation into account.
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Check (Y, Expected,
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"test " & Test & " -" &
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Integer'Image (I) &
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" of argument range",
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3.0);
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end loop;
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exception
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when Constraint_Error =>
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Report.Failed
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("Constraint_Error raised in argument range check");
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when others =>
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Report.Failed ("exception in argument range check");
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end Argument_Range_Check;
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procedure Do_Test is
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begin
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--- test 1 ---
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declare
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T : constant := (Real'Machine_EMax - 1) / 2;
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X : constant := (1.0 * Real'Machine_Radix) ** (2 * T);
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Expected : constant := (1.0 * Real'Machine_Radix) ** T;
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Y : Real;
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begin
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Y := Sqrt (X);
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Check (Y, Expected, "test 1 -- sqrt(radix**((emax-1)/2))");
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exception
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when Constraint_Error =>
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Report.Failed ("Constraint_Error raised in test 1");
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when others =>
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Report.Failed ("exception in test 1");
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end;
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--- test 2 ---
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declare
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T : constant := (Real'Model_EMin + 1) / 2;
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X : constant := (1.0 * Real'Machine_Radix) ** (2 * T);
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Expected : constant := (1.0 * Real'Machine_Radix) ** T;
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Y : Real;
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begin
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Y := Sqrt (X);
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Check (Y, Expected, "test 2 -- sqrt(radix**((emin+1)/2))");
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exception
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when Constraint_Error =>
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Report.Failed ("Constraint_Error raised in test 2");
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when others =>
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Report.Failed ("exception in test 2");
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end;
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--- test 3 ---
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declare
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X : constant := 1.0;
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Expected : constant := 1.0;
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Y : Real;
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begin
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Y := Sqrt(X);
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Check (Y, Expected, "test 3 -- sqrt(1.0)",
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0.0); -- no error allowed
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exception
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when Constraint_Error =>
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Report.Failed ("Constraint_Error raised in test 3");
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when others =>
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Report.Failed ("exception in test 3");
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end;
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--- test 4 ---
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declare
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X : constant := 0.0;
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Expected : constant := 0.0;
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Y : Real;
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begin
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Y := Sqrt(X);
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Check (Y, Expected, "test 4 -- sqrt(0.0)",
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0.0); -- no error allowed
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exception
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when Constraint_Error =>
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Report.Failed ("Constraint_Error raised in test 4");
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when others =>
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Report.Failed ("exception in test 4");
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end;
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--- test 5 ---
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declare
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X : constant := -1.0;
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Y : Real;
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begin
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Y := Sqrt(X);
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-- the following code should not be executed.
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-- The call to Check is to keep the call to Sqrt from
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-- appearing to be dead code.
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Check (Y, -1.0, "test 5 -- sqrt(-1)" );
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Report.Failed ("test 5 - argument_error expected");
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exception
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when Constraint_Error =>
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Report.Failed ("Constraint_Error raised in test 5");
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when Ada.Numerics.Argument_Error =>
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if Verbose then
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Report.Comment ("test 5 correctly got argument_error");
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end if;
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when others =>
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Report.Failed ("exception in test 5");
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end;
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--- test 6 ---
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declare
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X : constant := Ada.Numerics.Pi ** 2;
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Expected : constant := Ada.Numerics.Pi;
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Y : Real;
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begin
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Y := Sqrt (X);
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Check (Y, Expected, "test 6 -- sqrt(pi**2)");
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exception
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when Constraint_Error =>
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Report.Failed ("Constraint_Error raised in test 6");
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when others =>
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Report.Failed ("exception in test 6");
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end;
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--- test 7 & 8 ---
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Argument_Range_Check (1.0/Sqrt(Real(Real'Machine_Radix)),
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1.0,
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"7");
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Argument_Range_Check (1.0,
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Sqrt(Real(Real'Machine_Radix)),
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"8");
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end Do_Test;
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end Float_Check;
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-----------------------------------------------------------------------
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-----------------------------------------------------------------------
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-- check the floating point type with the most digits
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type A_Long_Float is digits System.Max_Digits;
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package A_Long_Float_Check is
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subtype Real is A_Long_Float;
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procedure Do_Test;
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end A_Long_Float_Check;
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package body A_Long_Float_Check is
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package Elementary_Functions is new
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Ada.Numerics.Generic_Elementary_Functions (Real);
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function Sqrt (X : Real) return Real renames
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| 282 |
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Elementary_Functions.Sqrt;
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| 283 |
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function Log (X : Real) return Real renames
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| 284 |
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Elementary_Functions.Log;
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| 285 |
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function Exp (X : Real) return Real renames
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| 286 |
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Elementary_Functions.Exp;
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| 287 |
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| 288 |
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-- The default Maximum Relative Error is the value specified
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| 289 |
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-- in the LRM.
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| 290 |
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Default_MRE : constant Real := 2.0;
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| 292 |
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procedure Check (Actual, Expected : Real;
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Test_Name : String;
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MRE : Real := Default_MRE) is
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Rel_Error : Real;
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Abs_Error : Real;
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| 297 |
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Max_Error : Real;
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| 298 |
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begin
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-- In the case where the expected result is very small or 0
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| 300 |
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-- we compute the maximum error as a multiple of Model_Epsilon instead
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| 301 |
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-- of Model_Epsilon and Expected.
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| 302 |
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Rel_Error := MRE * abs Expected * Real'Model_Epsilon;
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| 303 |
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Abs_Error := MRE * Real'Model_Epsilon;
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| 304 |
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if Rel_Error > Abs_Error then
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Max_Error := Rel_Error;
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else
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Max_Error := Abs_Error;
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end if;
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| 309 |
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| 310 |
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if abs (Actual - Expected) > Max_Error then
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Report.Failed (Test_Name &
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" actual: " & Real'Image (Actual) &
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" expected: " & Real'Image (Expected) &
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" difference: " &
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Real'Image (Actual - Expected) &
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| 316 |
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" mre:" & Real'Image (Max_Error) );
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| 317 |
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elsif Verbose then
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| 318 |
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if Actual = Expected then
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| 319 |
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Report.Comment (Test_Name & " exact result");
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else
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Report.Comment (Test_Name & " passed");
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end if;
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end if;
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end Check;
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| 326 |
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| 327 |
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procedure Argument_Range_Check (A, B : Real;
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| 328 |
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Test : String) is
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| 329 |
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-- test a logarithmically distributed selection of
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| 330 |
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-- arguments selected from the range A to B.
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| 331 |
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X : Real;
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| 332 |
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Expected : Real;
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| 333 |
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Y : Real;
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| 334 |
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C : Real := Log(B/A);
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| 335 |
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Max_Samples : constant := 1000;
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| 336 |
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| 337 |
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begin
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| 338 |
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for I in 1..Max_Samples loop
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| 339 |
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Expected := A * Exp(C * Real (I) / Real (Max_Samples));
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| 340 |
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X := Expected * Expected;
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| 341 |
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Y := Sqrt (X);
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| 342 |
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|
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| 343 |
|
|
-- note that since the expected value is computed, we
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| 344 |
|
|
-- must take the error in that computation into account.
|
| 345 |
|
|
Check (Y, Expected,
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| 346 |
|
|
"test " & Test & " -" &
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| 347 |
|
|
Integer'Image (I) &
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| 348 |
|
|
" of argument range",
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| 349 |
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3.0);
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| 350 |
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end loop;
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| 351 |
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exception
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| 352 |
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when Constraint_Error =>
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| 353 |
|
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Report.Failed
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| 354 |
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("Constraint_Error raised in argument range check");
|
| 355 |
|
|
when others =>
|
| 356 |
|
|
Report.Failed ("exception in argument range check");
|
| 357 |
|
|
end Argument_Range_Check;
|
| 358 |
|
|
|
| 359 |
|
|
|
| 360 |
|
|
procedure Do_Test is
|
| 361 |
|
|
begin
|
| 362 |
|
|
|
| 363 |
|
|
--- test 1 ---
|
| 364 |
|
|
declare
|
| 365 |
|
|
T : constant := (Real'Machine_EMax - 1) / 2;
|
| 366 |
|
|
X : constant := (1.0 * Real'Machine_Radix) ** (2 * T);
|
| 367 |
|
|
Expected : constant := (1.0 * Real'Machine_Radix) ** T;
|
| 368 |
|
|
Y : Real;
|
| 369 |
|
|
begin
|
| 370 |
|
|
Y := Sqrt (X);
|
| 371 |
|
|
Check (Y, Expected, "test 1 -- sqrt(radix**((emax-1)/2))");
|
| 372 |
|
|
exception
|
| 373 |
|
|
when Constraint_Error =>
|
| 374 |
|
|
Report.Failed ("Constraint_Error raised in test 1");
|
| 375 |
|
|
when others =>
|
| 376 |
|
|
Report.Failed ("exception in test 1");
|
| 377 |
|
|
end;
|
| 378 |
|
|
|
| 379 |
|
|
--- test 2 ---
|
| 380 |
|
|
declare
|
| 381 |
|
|
T : constant := (Real'Model_EMin + 1) / 2;
|
| 382 |
|
|
X : constant := (1.0 * Real'Machine_Radix) ** (2 * T);
|
| 383 |
|
|
Expected : constant := (1.0 * Real'Machine_Radix) ** T;
|
| 384 |
|
|
Y : Real;
|
| 385 |
|
|
begin
|
| 386 |
|
|
Y := Sqrt (X);
|
| 387 |
|
|
Check (Y, Expected, "test 2 -- sqrt(radix**((emin+1)/2))");
|
| 388 |
|
|
exception
|
| 389 |
|
|
when Constraint_Error =>
|
| 390 |
|
|
Report.Failed ("Constraint_Error raised in test 2");
|
| 391 |
|
|
when others =>
|
| 392 |
|
|
Report.Failed ("exception in test 2");
|
| 393 |
|
|
end;
|
| 394 |
|
|
|
| 395 |
|
|
--- test 3 ---
|
| 396 |
|
|
declare
|
| 397 |
|
|
X : constant := 1.0;
|
| 398 |
|
|
Expected : constant := 1.0;
|
| 399 |
|
|
Y : Real;
|
| 400 |
|
|
begin
|
| 401 |
|
|
Y := Sqrt(X);
|
| 402 |
|
|
Check (Y, Expected, "test 3 -- sqrt(1.0)",
|
| 403 |
|
|
0.0); -- no error allowed
|
| 404 |
|
|
exception
|
| 405 |
|
|
when Constraint_Error =>
|
| 406 |
|
|
Report.Failed ("Constraint_Error raised in test 3");
|
| 407 |
|
|
when others =>
|
| 408 |
|
|
Report.Failed ("exception in test 3");
|
| 409 |
|
|
end;
|
| 410 |
|
|
|
| 411 |
|
|
--- test 4 ---
|
| 412 |
|
|
declare
|
| 413 |
|
|
X : constant := 0.0;
|
| 414 |
|
|
Expected : constant := 0.0;
|
| 415 |
|
|
Y : Real;
|
| 416 |
|
|
begin
|
| 417 |
|
|
Y := Sqrt(X);
|
| 418 |
|
|
Check (Y, Expected, "test 4 -- sqrt(0.0)",
|
| 419 |
|
|
0.0); -- no error allowed
|
| 420 |
|
|
exception
|
| 421 |
|
|
when Constraint_Error =>
|
| 422 |
|
|
Report.Failed ("Constraint_Error raised in test 4");
|
| 423 |
|
|
when others =>
|
| 424 |
|
|
Report.Failed ("exception in test 4");
|
| 425 |
|
|
end;
|
| 426 |
|
|
|
| 427 |
|
|
--- test 5 ---
|
| 428 |
|
|
declare
|
| 429 |
|
|
X : constant := -1.0;
|
| 430 |
|
|
Y : Real;
|
| 431 |
|
|
begin
|
| 432 |
|
|
Y := Sqrt(X);
|
| 433 |
|
|
-- the following code should not be executed.
|
| 434 |
|
|
-- The call to Check is to keep the call to Sqrt from
|
| 435 |
|
|
-- appearing to be dead code.
|
| 436 |
|
|
Check (Y, -1.0, "test 5 -- sqrt(-1)" );
|
| 437 |
|
|
Report.Failed ("test 5 - argument_error expected");
|
| 438 |
|
|
exception
|
| 439 |
|
|
when Constraint_Error =>
|
| 440 |
|
|
Report.Failed ("Constraint_Error raised in test 5");
|
| 441 |
|
|
when Ada.Numerics.Argument_Error =>
|
| 442 |
|
|
if Verbose then
|
| 443 |
|
|
Report.Comment ("test 5 correctly got argument_error");
|
| 444 |
|
|
end if;
|
| 445 |
|
|
when others =>
|
| 446 |
|
|
Report.Failed ("exception in test 5");
|
| 447 |
|
|
end;
|
| 448 |
|
|
|
| 449 |
|
|
--- test 6 ---
|
| 450 |
|
|
declare
|
| 451 |
|
|
X : constant := Ada.Numerics.Pi ** 2;
|
| 452 |
|
|
Expected : constant := Ada.Numerics.Pi;
|
| 453 |
|
|
Y : Real;
|
| 454 |
|
|
begin
|
| 455 |
|
|
Y := Sqrt (X);
|
| 456 |
|
|
Check (Y, Expected, "test 6 -- sqrt(pi**2)");
|
| 457 |
|
|
exception
|
| 458 |
|
|
when Constraint_Error =>
|
| 459 |
|
|
Report.Failed ("Constraint_Error raised in test 6");
|
| 460 |
|
|
when others =>
|
| 461 |
|
|
Report.Failed ("exception in test 6");
|
| 462 |
|
|
end;
|
| 463 |
|
|
|
| 464 |
|
|
--- test 7 & 8 ---
|
| 465 |
|
|
Argument_Range_Check (1.0/Sqrt(Real(Real'Machine_Radix)),
|
| 466 |
|
|
1.0,
|
| 467 |
|
|
"7");
|
| 468 |
|
|
Argument_Range_Check (1.0,
|
| 469 |
|
|
Sqrt(Real(Real'Machine_Radix)),
|
| 470 |
|
|
"8");
|
| 471 |
|
|
end Do_Test;
|
| 472 |
|
|
end A_Long_Float_Check;
|
| 473 |
|
|
|
| 474 |
|
|
-----------------------------------------------------------------------
|
| 475 |
|
|
-----------------------------------------------------------------------
|
| 476 |
|
|
|
| 477 |
|
|
package Non_Generic_Check is
|
| 478 |
|
|
procedure Do_Test;
|
| 479 |
|
|
end Non_Generic_Check;
|
| 480 |
|
|
|
| 481 |
|
|
package body Non_Generic_Check is
|
| 482 |
|
|
package EF renames
|
| 483 |
|
|
Ada.Numerics.Elementary_Functions;
|
| 484 |
|
|
subtype Real is Float;
|
| 485 |
|
|
|
| 486 |
|
|
-- The default Maximum Relative Error is the value specified
|
| 487 |
|
|
-- in the LRM.
|
| 488 |
|
|
Default_MRE : constant Real := 2.0;
|
| 489 |
|
|
|
| 490 |
|
|
procedure Check (Actual, Expected : Real;
|
| 491 |
|
|
Test_Name : String;
|
| 492 |
|
|
MRE : Real := Default_MRE) is
|
| 493 |
|
|
Rel_Error : Real;
|
| 494 |
|
|
Abs_Error : Real;
|
| 495 |
|
|
Max_Error : Real;
|
| 496 |
|
|
begin
|
| 497 |
|
|
-- In the case where the expected result is very small or 0
|
| 498 |
|
|
-- we compute the maximum error as a multiple of Model_Epsilon instead
|
| 499 |
|
|
-- of Model_Epsilon and Expected.
|
| 500 |
|
|
Rel_Error := MRE * abs Expected * Real'Model_Epsilon;
|
| 501 |
|
|
Abs_Error := MRE * Real'Model_Epsilon;
|
| 502 |
|
|
if Rel_Error > Abs_Error then
|
| 503 |
|
|
Max_Error := Rel_Error;
|
| 504 |
|
|
else
|
| 505 |
|
|
Max_Error := Abs_Error;
|
| 506 |
|
|
end if;
|
| 507 |
|
|
|
| 508 |
|
|
if abs (Actual - Expected) > Max_Error then
|
| 509 |
|
|
Report.Failed (Test_Name &
|
| 510 |
|
|
" actual: " & Real'Image (Actual) &
|
| 511 |
|
|
" expected: " & Real'Image (Expected) &
|
| 512 |
|
|
" difference: " &
|
| 513 |
|
|
Real'Image (Actual - Expected) &
|
| 514 |
|
|
" mre:" & Real'Image (Max_Error) );
|
| 515 |
|
|
elsif Verbose then
|
| 516 |
|
|
if Actual = Expected then
|
| 517 |
|
|
Report.Comment (Test_Name & " exact result");
|
| 518 |
|
|
else
|
| 519 |
|
|
Report.Comment (Test_Name & " passed");
|
| 520 |
|
|
end if;
|
| 521 |
|
|
end if;
|
| 522 |
|
|
end Check;
|
| 523 |
|
|
|
| 524 |
|
|
|
| 525 |
|
|
|
| 526 |
|
|
procedure Argument_Range_Check (A, B : Float;
|
| 527 |
|
|
Test : String) is
|
| 528 |
|
|
-- test a logarithmically distributed selection of
|
| 529 |
|
|
-- arguments selected from the range A to B.
|
| 530 |
|
|
X : Float;
|
| 531 |
|
|
Expected : Float;
|
| 532 |
|
|
Y : Float;
|
| 533 |
|
|
C : Float := EF.Log(B/A);
|
| 534 |
|
|
Max_Samples : constant := 1000;
|
| 535 |
|
|
|
| 536 |
|
|
begin
|
| 537 |
|
|
for I in 1..Max_Samples loop
|
| 538 |
|
|
Expected := A * EF.Exp(C * Float (I) / Float (Max_Samples));
|
| 539 |
|
|
X := Expected * Expected;
|
| 540 |
|
|
Y := EF.Sqrt (X);
|
| 541 |
|
|
|
| 542 |
|
|
-- note that since the expected value is computed, we
|
| 543 |
|
|
-- must take the error in that computation into account.
|
| 544 |
|
|
Check (Y, Expected,
|
| 545 |
|
|
"test " & Test & " -" &
|
| 546 |
|
|
Integer'Image (I) &
|
| 547 |
|
|
" of argument range",
|
| 548 |
|
|
3.0);
|
| 549 |
|
|
end loop;
|
| 550 |
|
|
exception
|
| 551 |
|
|
when Constraint_Error =>
|
| 552 |
|
|
Report.Failed
|
| 553 |
|
|
("Constraint_Error raised in argument range check");
|
| 554 |
|
|
when others =>
|
| 555 |
|
|
Report.Failed ("exception in argument range check");
|
| 556 |
|
|
end Argument_Range_Check;
|
| 557 |
|
|
|
| 558 |
|
|
|
| 559 |
|
|
procedure Do_Test is
|
| 560 |
|
|
begin
|
| 561 |
|
|
|
| 562 |
|
|
--- test 1 ---
|
| 563 |
|
|
declare
|
| 564 |
|
|
T : constant := (Float'Machine_EMax - 1) / 2;
|
| 565 |
|
|
X : constant := (1.0 * Float'Machine_Radix) ** (2 * T);
|
| 566 |
|
|
Expected : constant := (1.0 * Float'Machine_Radix) ** T;
|
| 567 |
|
|
Y : Float;
|
| 568 |
|
|
begin
|
| 569 |
|
|
Y := EF.Sqrt (X);
|
| 570 |
|
|
Check (Y, Expected, "test 1 -- sqrt(radix**((emax-1)/2))");
|
| 571 |
|
|
exception
|
| 572 |
|
|
when Constraint_Error =>
|
| 573 |
|
|
Report.Failed ("Constraint_Error raised in test 1");
|
| 574 |
|
|
when others =>
|
| 575 |
|
|
Report.Failed ("exception in test 1");
|
| 576 |
|
|
end;
|
| 577 |
|
|
|
| 578 |
|
|
--- test 2 ---
|
| 579 |
|
|
declare
|
| 580 |
|
|
T : constant := (Float'Model_EMin + 1) / 2;
|
| 581 |
|
|
X : constant := (1.0 * Float'Machine_Radix) ** (2 * T);
|
| 582 |
|
|
Expected : constant := (1.0 * Float'Machine_Radix) ** T;
|
| 583 |
|
|
Y : Float;
|
| 584 |
|
|
begin
|
| 585 |
|
|
Y := EF.Sqrt (X);
|
| 586 |
|
|
Check (Y, Expected, "test 2 -- sqrt(radix**((emin+1)/2))");
|
| 587 |
|
|
exception
|
| 588 |
|
|
when Constraint_Error =>
|
| 589 |
|
|
Report.Failed ("Constraint_Error raised in test 2");
|
| 590 |
|
|
when others =>
|
| 591 |
|
|
Report.Failed ("exception in test 2");
|
| 592 |
|
|
end;
|
| 593 |
|
|
|
| 594 |
|
|
--- test 3 ---
|
| 595 |
|
|
declare
|
| 596 |
|
|
X : constant := 1.0;
|
| 597 |
|
|
Expected : constant := 1.0;
|
| 598 |
|
|
Y : Float;
|
| 599 |
|
|
begin
|
| 600 |
|
|
Y := EF.Sqrt(X);
|
| 601 |
|
|
Check (Y, Expected, "test 3 -- sqrt(1.0)",
|
| 602 |
|
|
0.0); -- no error allowed
|
| 603 |
|
|
exception
|
| 604 |
|
|
when Constraint_Error =>
|
| 605 |
|
|
Report.Failed ("Constraint_Error raised in test 3");
|
| 606 |
|
|
when others =>
|
| 607 |
|
|
Report.Failed ("exception in test 3");
|
| 608 |
|
|
end;
|
| 609 |
|
|
|
| 610 |
|
|
--- test 4 ---
|
| 611 |
|
|
declare
|
| 612 |
|
|
X : constant := 0.0;
|
| 613 |
|
|
Expected : constant := 0.0;
|
| 614 |
|
|
Y : Float;
|
| 615 |
|
|
begin
|
| 616 |
|
|
Y := EF.Sqrt(X);
|
| 617 |
|
|
Check (Y, Expected, "test 4 -- sqrt(0.0)",
|
| 618 |
|
|
0.0); -- no error allowed
|
| 619 |
|
|
exception
|
| 620 |
|
|
when Constraint_Error =>
|
| 621 |
|
|
Report.Failed ("Constraint_Error raised in test 4");
|
| 622 |
|
|
when others =>
|
| 623 |
|
|
Report.Failed ("exception in test 4");
|
| 624 |
|
|
end;
|
| 625 |
|
|
|
| 626 |
|
|
--- test 5 ---
|
| 627 |
|
|
declare
|
| 628 |
|
|
X : constant := -1.0;
|
| 629 |
|
|
Y : Float;
|
| 630 |
|
|
begin
|
| 631 |
|
|
Y := EF.Sqrt(X);
|
| 632 |
|
|
-- the following code should not be executed.
|
| 633 |
|
|
-- The call to Check is to keep the call to Sqrt from
|
| 634 |
|
|
-- appearing to be dead code.
|
| 635 |
|
|
Check (Y, -1.0, "test 5 -- sqrt(-1)" );
|
| 636 |
|
|
Report.Failed ("test 5 - argument_error expected");
|
| 637 |
|
|
exception
|
| 638 |
|
|
when Constraint_Error =>
|
| 639 |
|
|
Report.Failed ("Constraint_Error raised in test 5");
|
| 640 |
|
|
when Ada.Numerics.Argument_Error =>
|
| 641 |
|
|
if Verbose then
|
| 642 |
|
|
Report.Comment ("test 5 correctly got argument_error");
|
| 643 |
|
|
end if;
|
| 644 |
|
|
when others =>
|
| 645 |
|
|
Report.Failed ("exception in test 5");
|
| 646 |
|
|
end;
|
| 647 |
|
|
|
| 648 |
|
|
--- test 6 ---
|
| 649 |
|
|
declare
|
| 650 |
|
|
X : constant := Ada.Numerics.Pi ** 2;
|
| 651 |
|
|
Expected : constant := Ada.Numerics.Pi;
|
| 652 |
|
|
Y : Float;
|
| 653 |
|
|
begin
|
| 654 |
|
|
Y := EF.Sqrt (X);
|
| 655 |
|
|
Check (Y, Expected, "test 6 -- sqrt(pi**2)");
|
| 656 |
|
|
exception
|
| 657 |
|
|
when Constraint_Error =>
|
| 658 |
|
|
Report.Failed ("Constraint_Error raised in test 6");
|
| 659 |
|
|
when others =>
|
| 660 |
|
|
Report.Failed ("exception in test 6");
|
| 661 |
|
|
end;
|
| 662 |
|
|
|
| 663 |
|
|
--- test 7 & 8 ---
|
| 664 |
|
|
Argument_Range_Check (1.0/EF.Sqrt(Float(Float'Machine_Radix)),
|
| 665 |
|
|
1.0,
|
| 666 |
|
|
"7");
|
| 667 |
|
|
Argument_Range_Check (1.0,
|
| 668 |
|
|
EF.Sqrt(Float(Float'Machine_Radix)),
|
| 669 |
|
|
"8");
|
| 670 |
|
|
end Do_Test;
|
| 671 |
|
|
end Non_Generic_Check;
|
| 672 |
|
|
|
| 673 |
|
|
-----------------------------------------------------------------------
|
| 674 |
|
|
-----------------------------------------------------------------------
|
| 675 |
|
|
|
| 676 |
|
|
begin
|
| 677 |
|
|
Report.Test ("CXG2003",
|
| 678 |
|
|
"Check the accuracy of the sqrt function");
|
| 679 |
|
|
|
| 680 |
|
|
if Verbose then
|
| 681 |
|
|
Report.Comment ("checking Standard.Float");
|
| 682 |
|
|
end if;
|
| 683 |
|
|
|
| 684 |
|
|
Float_Check.Do_Test;
|
| 685 |
|
|
|
| 686 |
|
|
if Verbose then
|
| 687 |
|
|
Report.Comment ("checking a digits" &
|
| 688 |
|
|
Integer'Image (System.Max_Digits) &
|
| 689 |
|
|
" floating point type");
|
| 690 |
|
|
end if;
|
| 691 |
|
|
|
| 692 |
|
|
A_Long_Float_Check.Do_Test;
|
| 693 |
|
|
|
| 694 |
|
|
if Verbose then
|
| 695 |
|
|
Report.Comment ("checking non-generic package");
|
| 696 |
|
|
end if;
|
| 697 |
|
|
|
| 698 |
|
|
Non_Generic_Check.Do_Test;
|
| 699 |
|
|
|
| 700 |
|
|
Report.Result;
|
| 701 |
|
|
end CXG2003;
|
