Parity.cxx

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/*
  Copyright (C) 2002-2018 CERN for the benefit of the ATLAS collaboration
*/
/***************************************************************************
                          Parity.cpp  -  description
                             -------------------
    begin                : Fri Jun 28 2002
    email                : moyse@zanzibar
 ***************************************************************************/
 
 
#include "TrigT1CaloUtils/Parity.h"
 
Parity::Parity(){
}
Parity::~Parity(){
}

unsigned int Parity::even(unsigned int word) const {
  unsigned int numOfBits=0;
  for (unsigned int bit=0; bit<sizeof(word); bit++){
    if (word&(1<<bit)) numOfBits++;
  }
  return (numOfBits%2);
}

unsigned int Parity::odd(unsigned int word) const{
  return (1-even(word) );
}