#ifndef UTIL_MATH_2020_08_05_H_
  #define UTIL_MATH_2020_08_05_H_

  //*****************************************************************************
  // (C) Automotive Lighting Reutlingen GmbH
  //     Tuebinger Strasse 123, 72762 Reutlingen, Germany
  //
  // Automotive Lighting Reutlingen GmbH owns all the rights to this work.
  // This work shall not be copied, reproduced, used, modified, transferred
  // or its information shall not be disclosed without the prior written
  // authorization of Automotive Lighting Reutlingen GmbH.
  //*****************************************************************************

  //-----------------------------------------------------------------------------
  /// \file  UtilMath.h
  ///
  /// \brief
  ///
  /// \descr
  ///
  ///         Additional information can be found in the design description (Link:
  ///         <a href="file:///\\Dereu1nquest1\XXX_Docu\Gen\03_MDRD\MDDD_XXX.doc">MDDD</a>)
  ///
  /// \author Wuesteney, Ulrich ALRT/EEG-PM2 * (wu82rt)
  ///         mailTo:ulrich.wuesteney[A]al-lighting.com
  //-----------------------------------------------------------------------------

  #include <Std_Types.h>

  //=============================================================================
  // defines
  //=============================================================================

  //=============================================================================
  //
  //=============================================================================

  typedef sint32 ORDER1_Filter;

  //=============================================================================
  // prototypes
  //=============================================================================

  uint16 UtilMath_LinearInterpolateU16(const uint16* punX, const uint16* punY, sint32 lLinPairs, uint16 unX);
  uint16 UtilMath_FastInterpolateU16_N17(const uint16* punY, uint16 unX);

  void   Order1Filter       (      ORDER1_Filter* const pFilter, const sint16 nValue, const uint16 unBeta);
  void   Order1FilterInit   (      ORDER1_Filter* const pFilter, const sint16 nValue                     );
  sint16 Order1FilterValue  (const ORDER1_Filter* const pFilter                                          );

  uint16 Order1FilterGetCoef(const uint16 unSamplimgTime, const uint16 unFilterTime);

  INLINE boolean Util_SameSign(const sint32 a, const sint32 b)
  {
    return (boolean) ((int) (a < (sint32) 0) == (int) (b < (sint32) 0));
  }

#endif // UTIL_MATH_2020_08_05_H_