BesEvtGen-00-04-08/src/EvtGen/EvtGenBase/EvtPointPred.hh

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/*******************************************************************************
 * Project: BaBar detector at the SLAC PEP-II B-factory
 * Package: EvtGenBase
 *    File: $Id: EvtPointPred.hh,v 1.1.1.2 2007/10/26 05:03:14 pingrg Exp $
 *  Author: Alexei Dvoretskii, [email protected], 2001-2002
 *
 * Copyright (C) 2002 Caltech
 *******************************************************************************/
 
// Predicate testing validity of a point. The point class must provide
// bool isValid() method
 
#ifndef EVT_POINT_PRED_HH
#define EVT_POINT_PRED_HH
 
template <class Point> class EvtPointPred {
public:
  
  typedef Point argument_type;
  typedef bool result_type;
  
  EvtPointPred() {}
  EvtPointPred(const EvtPointPred&) {}
  ~EvtPointPred() {}
  
  result_type operator()(argument_type x) 
  {
    return x.isValid();
  }
};