Measurer.h

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// -*- C++ -*-

// PLearn (A C++ Machine Learning Library)
// Copyright (C) 1998 Pascal Vincent
// Copyright (C) 1999,2000 Pascal Vincent, Yoshua Bengio and University of Montreal
//

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/* *******************************************************      
   * $Id: Measurer.h,v 1.3 2004/07/21 16:30:53 chrish42 Exp $
   * AUTHORS: Pascal Vincent & Yoshua Bengio
   * This file is part of the PLearn library.
   ******************************************************* */


#ifndef MEASURER_INC
#define MEASURER_INC

#include <plearn/math/TMat.h>

namespace PLearn {
using namespace std;


class Measurer
{
public:
  virtual bool measure(int t, const Vec& costs) { return false; }

  virtual void measure(int t)
    {
      Vec c;
      measure(t,c);
    }
  virtual ~Measurer();
};

typedef bool (*MeasurerCallbackFunction)(int t, const Vec& costs);

class CallbackMeasurer: public Measurer
{
public:
  MeasurerCallbackFunction callback;
  
  CallbackMeasurer(MeasurerCallbackFunction the_callback)
    :callback(the_callback) 
    {}

  virtual bool measure(int t, const Vec& costs);

};

} // end of namespace PLearn

#endif

---