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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
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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;