TestAccuracy.h Example File

multimedia/spectrum/3rdparty/fftreal/TestAccuracy.h
/*****************************************************************************

        TestAccuracy.h
        Copyright (c) 2005 Laurent de Soras

--- Legal stuff ---

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*Tab=3***********************************************************************/

#if ! defined (TestAccuracy_HEADER_INCLUDED)
#define TestAccuracy_HEADER_INCLUDED

#if defined (_MSC_VER)
        #pragma once
        #pragma warning (4 : 4250) // "Inherits via dominance."
#endif

/*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

template <class FO>
class TestAccuracy
{

/*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

public:

        typedef typename FO::DataType   DataType;
        typedef long double     BigFloat;       // To get maximum accuracy during intermediate calculations

   static int           perform_test_single_object (FO &fft);
   static int           perform_test_d (FO &fft, const char *class_name_0);
   static int           perform_test_i (FO &fft, const char *class_name_0);
   static int           perform_test_di (FO &fft, const char *class_name_0);

/*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

protected:

/*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

private:

        enum {                  NBR_ACC_TESTS   = 10 * 1000 * 1000      };
   enum {         MAX_NBR_TESTS  = 10000  };

   static void          compute_tf (DataType s [], const DataType x [], long length);
        static void             compute_itf (DataType x [], const DataType s [], long length);
        static int              compare_vect_display (const DataType x_ptr [], const DataType y_ptr [], long len, BigFloat &max_err_rel);
        static BigFloat
                                                compute_power (const DataType x_ptr [], long len);
        static BigFloat
                                                compute_power (const DataType x_ptr [], const DataType y_ptr [], long len);
        static void             compare_vect (const DataType x_ptr [], const DataType y_ptr [], BigFloat &power, long &max_err_pos, long len);

/*\\\ FORBIDDEN MEMBER FUNCTIONS \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

private:

                                                TestAccuracy ();
                                                ~TestAccuracy ();
                                                TestAccuracy (const TestAccuracy &other);
        TestAccuracy &  operator = (const TestAccuracy &other);
        bool                            operator == (const TestAccuracy &other);
        bool                            operator != (const TestAccuracy &other);

};      // class TestAccuracy

#include        "TestAccuracy.hpp"

#endif  // TestAccuracy_HEADER_INCLUDED

/*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

© 2017 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.