- Qt 5.5
- Qt Multimedia
- Spectrum Example
- TestAccuracy.h Example File
- Qt 5.5.1 Reference Documentation

# TestAccuracy.h Example File

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 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/