EIncDec.h

/**************************************************************************
 * BASF2 (Belle Analysis Framework 2)                                     *
 * Copyright(C) 2015 - Belle II Collaboration                             *
 *                                                                        *
 * Author: The Belle II Collaboration                                     *
 * Contributors: Oliver Frost                                             *
 *                                                                        *
 * This software is provided "as is" without any warranty.                *
 **************************************************************************/
#pragma once
 
#include <cstdlib> // for abs
#include <climits>
 
namespace Belle2 {
  namespace TrackFindingCDC {
 
    namespace NIncDec {
 
      enum EIncDec : signed short {
 
        c_Increasing = 1,
 
        c_Constant = 0,
 
        c_Decreasing = -1,
 
        c_Invalid = SHRT_MIN,
      };
 
      inline EIncDec reversed(EIncDec eIncDec)
      { return EIncDec(-eIncDec); }
 
      inline bool isValid(EIncDec eIncDec)
      { return std::abs(eIncDec) <= 1; }
    }
 
    using EIncDec = NIncDec::EIncDec;
 
  }
}