TestAccuracy.h Example File | Qt Multimedia 5.9

Qt 5.9 | Qt Multimedia | Spectrum Example | TestAccuracy.h Example File

Qt 5.9.2 Reference Documentation

# 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 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/