TestAccuracy.h Example File
demos/spectrum/3rdparty/fftreal/TestAccuracy.h
 
 
 #if ! defined (TestAccuracy_HEADER_INCLUDED)
 #define TestAccuracy_HEADER_INCLUDED
 #if defined (_MSC_VER)
         #pragma once
         #pragma warning (4 : 4250) // "Inherits via dominance."
 #endif
 
 template <class FO>
 class TestAccuracy
 {
 
 public:
         typedef typename FO::DataType   DataType;
         typedef long double     BigFloat;       
    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:
 
 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);
 
 private:
                                                 TestAccuracy ();
                                                 ~TestAccuracy ();
                                                 TestAccuracy (const TestAccuracy &other);
         TestAccuracy &  operator = (const TestAccuracy &other);
         bool                            operator == (const TestAccuracy &other);
         bool                            operator != (const TestAccuracy &other);
 };      
 #include        "TestAccuracy.hpp"
 #endif  // TestAccuracy_HEADER_INCLUDED