-- 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;