// Timer class;
// adapted from code written by Dave Musser.

/*

Defines class timer for measuring computing times. Implemented
using the standard clock function from time.h.

*/

/*
 * Copyright (c) 1997 Rensselaer Polytechnic Institute
 *
 * Permission to use, copy, modify, distribute and sell this software
 * and its documentation for any purpose is hereby granted without fee,
 * provided that the above copyright notice appear in all copies and
 * that both that copyright notice and this permission notice appear
 * in supporting documentation.  Rensselaer Polytechnic Institute makes no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied warranty.
 *
 */

#ifndef TIMER_H
#define TIMER_H

#include <time.h>

class timer {
protected:
  double last_start, acc;
public:
  void reset() { acc = 0.0; }
  void start() { last_start = clock(); }
  void stop() { acc += clock() - last_start; }
  double time() const { return acc/CLOCKS_PER_SEC; }
};

#endif