IFilterUtils.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
// IFilterUtils.h 
// Header file for class IFilterUtils
// Author: S.Binet<binet@cern.ch>
#ifndef ANALYSISUTILS_IFILTERUTILS_H 
#define ANALYSISUTILS_IFILTERUTILS_H 
 
namespace AnalysisUtils {
 
template<class In, class Out, class Pred>
Out copy_if(In first, const In& last, Out res, const Pred& p)
{
  for ( ; first != last; ++first ) {
    if ( p(*first) ) {
      *res++ = *first;
    }
  }
  return res;
}
 
}//> end AnalysisUtils namespace
 
#endif //> ANALYSISUTILS_IFILTERUTILSS_H