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-- CXA5A01.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 the functions Sin and Sinh provide correct results.
--
-- TEST DESCRIPTION:
-- This test examines both the version of Sin and Sinh resulting from
-- the instantiation of the Ada.Numerics.Generic_Elementary_Functions
-- with a type derived from type Float, as well as the preinstantiated
-- version of this package for type Float.
-- Prescribed results, as well as instances prescribed to raise
-- exceptions, are examined in the test cases. In addition,
-- certain evaluations are performed where the actual function result
-- is compared with the expected result (within an epsilon range of
-- accuracy).
--
-- TEST FILES:
-- The following files comprise this test:
--
-- FXA5A00.A (foundation code)
-- CXA5A01.A
--
--
-- CHANGE HISTORY:
-- 06 Mar 95 SAIC Initial prerelease version.
-- 13 Jun 95 SAIC Incorporated use of Dont_Optimize procedure, and
-- use of Result_Within_Range function overloaded for
-- FXA5A00.New_Float_Type.
-- 26 Jun 98 EDS Protected exception tests by first testing
-- for 'Machine_Overflows
--!
with Ada.Numerics.Elementary_Functions;
with Ada.Numerics.Generic_Elementary_Functions;
with FXA5A00;
with Report;
procedure CXA5A01 is
begin
Report.Test ("CXA5A01", "Check that the functions Sin and Sinh provide " &
"correct results");
Test_Block:
declare
use Ada.Numerics;
use FXA5A00;
package GEF is new Ada.Numerics.Generic_Elementary_Functions(New_Float);
package EF renames Ada.Numerics.Elementary_Functions;
The_Result : Float;
New_Float_Result : New_Float;
procedure Dont_Optimize_Float is new Dont_Optimize(Float);
procedure Dont_Optimize_New_Float is new Dont_Optimize(New_Float);
begin
-- Testing of Sin Function, both instantiated and pre-instantiated
-- version.
-- Check that no exception occurs on computing the Sin with very
-- large (positive and negative) input values.
begin
New_Float_Result := GEF.Sin (New_Float(FXA5A00.Large));
Dont_Optimize_New_Float(New_Float_Result, 1);
exception
when others =>
Report.Failed("Unexpected exception on GEF.Sin with large " &
"positive value");
end;
begin
The_Result := EF.Sin (FXA5A00.Minus_Large);
Dont_Optimize_Float(The_Result, 2);
exception
when others =>
Report.Failed("Unexpected exception on GEF.Sin with large " &
"negative value");
end;
-- Test of Sin for prescribed result at zero.
if GEF.Sin (0.0) /= 0.0 or
EF.Sin (0.0) /= 0.0
then
Report.Failed("Incorrect value returned from Sin(0.0)");
end if;
-- Test of Sin with expected result value between 0.0 and 1.0.
if not (GEF.Sin (Ada.Numerics.Pi/4.0) < 1.0) or
not ( EF.Sin (Ada.Numerics.Pi/4.0) < 1.0) or
not FXA5A00.Result_Within_Range(GEF.Sin(0.35), 0.343, 0.001) or
not FXA5A00.Result_Within_Range( EF.Sin(1.18), 0.924, 0.001)
then
Report.Failed("Incorrect value returned from Sin function when " &
"the expected result is between 0.0 and 1.0");
end if;
-- Test of Sin with expected result value between -1.0 and 0.0.
if not (GEF.Sin (-Ada.Numerics.Pi/4.0) > -1.0) or
not ( EF.Sin (-Ada.Numerics.Pi/4.0) > -1.0) or
not FXA5A00.Result_Within_Range(GEF.Sin(-0.24), -0.238, 0.001) or
not FXA5A00.Result_Within_Range( EF.Sin(-1.00), -0.841, 0.001)
then
Report.Failed("Incorrect value returned from Sin function when " &
"the expected result is between -1.0 and 0.0");
end if;
-- Testing of the Sin function with Cycle parameter.
-- Check that Argument_Error is raised when the value of the Cycle
-- parameter is zero.
begin
New_Float_Result := GEF.Sin (X => 1.0, Cycle => 0.0);
Report.Failed("Argument_Error not raised by GEF.Sin function " &
"when the Cycle parameter is zero");
Dont_Optimize_New_Float(New_Float_Result, 3);
exception
when Ada.Numerics.Argument_Error => null; -- OK, expected exception.
when others =>
Report.Failed("Unexpected exception raised by GEF.Sin function " &
"when the Cycle parameter is zero");
end;
begin
The_Result := EF.Sin (X => 0.34, Cycle => 0.0);
Report.Failed("Argument_Error not raised by EF.Sin function when " &
"the Cycle parameter is zero");
Dont_Optimize_Float(The_Result, 4);
exception
when Ada.Numerics.Argument_Error => null; -- OK, expected exception.
when others =>
Report.Failed("Unexpected exception raised by EF.Sin function " &
"when the Cycle parameter is zero");
end;
-- Check that Argument_Error is raised when the value of the Cycle
-- parameter is negative.
begin
New_Float_Result := GEF.Sin (X => 0.45, Cycle => -1.0);
Report.Failed("Argument_Error not raised by GEF.Sin function " &
"when the Cycle parameter is negative");
Dont_Optimize_New_Float(New_Float_Result, 5);
exception
when Ada.Numerics.Argument_Error => null; -- OK, expected exception.
when others =>
Report.Failed("Unexpected exception raised by GEF.Sin function " &
"when the Cycle parameter is negative");
end;
begin
The_Result := EF.Sin (X => 0.10, Cycle => -4.0);
Report.Failed("Argument_Error not raised by EF.Sin function when " &
"the Cycle parameter is negative");
Dont_Optimize_Float(The_Result, 6);
exception
when Ada.Numerics.Argument_Error => null; -- OK, expected exception.
when others =>
Report.Failed("Unexpected exception raised by EF.Sin function " &
"when the Cycle parameter is negative");
end;
-- Check that no exception occurs on computing the Sin with very
-- large (positive and negative) input values and Cycle parameter.
begin
New_Float_Result := GEF.Sin (New_Float(FXA5A00.Large), 360.0);
Dont_Optimize_New_Float(New_Float_Result, 7);
exception
when others =>
Report.Failed("Unexpected exception on GEF.Sin with large " &
"positive value and Cycle parameter");
end;
begin
The_Result := EF.Sin (FXA5A00.Minus_Large, 720.0);
Dont_Optimize_Float(The_Result, 8);
exception
when others =>
Report.Failed("Unexpected exception on EF.Sin with large " &
"negative value and Cycle parameter");
end;
-- Test of Sin with Cycle parameter for prescribed result at zero.
if GEF.Sin (0.0, 360.0) /= 0.0 or
EF.Sin (0.0, 180.0) /= 0.0
then
Report.Failed("Incorrect value returned from Sin function with " &
"cycle parameter for a zero input parameter value");
end if;
-- Tests of Sin function with Cycle parameter for prescribed results.
if GEF.Sin(0.0, 360.0) /= 0.0 or
EF.Sin(180.0, 360.0) /= 0.0 or
GEF.Sin(90.0, 360.0) /= 1.0 or
EF.Sin(450.0, 360.0) /= 1.0 or
GEF.Sin(270.0, 360.0) /= -1.0 or
EF.Sin(630.0, 360.0) /= -1.0
then
Report.Failed("Incorrect result from the Sin function with " &
"various cycle values for prescribed results");
end if;
-- Testing of Sinh Function, both instantiated and pre-instantiated
-- version.
-- Test for Constraint_Error on parameter with large positive magnitude.
begin
if New_Float'Machine_Overflows then
New_Float_Result := GEF.Sinh (New_Float(FXA5A00.Large));
Report.Failed("Constraint_Error not raised when the GEF.Sinh " &
"function is provided a parameter with a large " &
"positive value");
Dont_Optimize_New_Float(New_Float_Result, 9);
end if;
exception
when Constraint_Error => null; -- OK, expected exception.
when others =>
Report.Failed("Constraint_Error not raised when the GEF.Sinh " &
"function is provided a parameter with a large " &
"positive value");
end;
-- Test for Constraint_Error on parameter with large negative magnitude.
begin
if Float'Machine_Overflows then
The_Result := EF.Sinh (FXA5A00.Minus_Large);
Report.Failed("Constraint_Error not raised when the EF.Sinh " &
"function is provided a parameter with a " &
"large negative value");
Dont_Optimize_Float(The_Result, 10);
end if;
exception
when Constraint_Error => null; -- OK, expected exception.
when others =>
Report.Failed("Constraint_Error not raised when the EF.Sinh " &
"function is provided a parameter with a " &
"large negative value");
end;
-- Test that no exception occurs when the Sinh function is provided a
-- very small positive or negative value.
begin
New_Float_Result := GEF.Sinh (New_Float(FXA5A00.Small));
Dont_Optimize_New_Float(New_Float_Result, 11);
exception
when others =>
Report.Failed("Unexpected exception on GEF.Sinh with a very" &
"small positive value");
end;
begin
The_Result := EF.Sinh (-FXA5A00.Small);
Dont_Optimize_Float(The_Result, 12);
exception
when others =>
Report.Failed("Unexpected exception on EF.Sinh with a very" &
"small negative value");
end;
-- Test for prescribed 0.0 result of Function Sinh with 0.0 parameter.
if GEF.Sinh (0.0) /= 0.0 or
EF.Sinh (0.0) /= 0.0
then
Report.Failed("Incorrect value returned from Sinh(0.0)");
end if;
-- Test of Sinh function with various input parameters.
if not FXA5A00.Result_Within_Range(GEF.Sinh(0.01), 0.010, 0.001) or
not FXA5A00.Result_Within_Range( EF.Sinh(0.61), 0.649, 0.001) or
not FXA5A00.Result_Within_Range(GEF.Sinh(1.70), 2.65, 0.01) or
not FXA5A00.Result_Within_Range( EF.Sinh(3.15), 11.65, 0.01)
then
Report.Failed("Incorrect result returned from Sinh function " &
"with various input parameters");
end if;
exception
when others => Report.Failed ("Exception raised in Test_Block");
end Test_Block;
Report.Result;
end CXA5A01;