struct CHANNEL_UNIT
{
public:
  double High;
  double Low;

  CHANNEL_UNIT( void ) : High(0), Low(0)
  {
  }

  void operator +=( const double Value )
  {
    this.High += Value;
    this.Low -= Value;

    return;
  }

  void operator *=( const double Value )
  {
    const double Size = Value * (this.High - this.Low) / 2;
    const double Avg = (this.High + this.Low) / 2;

    this.High = Avg + Size;
    this.Low = Avg - Size;

    return;
  }

  bool Check( void ) const
  {
    return(this.High > this.Low);
  }

  void Normalize( void )
  {
    this.High = ::NormalizeDouble(this.High, _Digits);
    this.Low = ::NormalizeDouble(this.Low, _Digits);

    return;
  }

  string ToString( void ) const
  {
    return("High = " + ::DoubleToString(this.High, _Digits) +
           "\nLow = " + ::DoubleToString(this.Low, _Digits));
  }
};