hashGenerator.h

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/**
 * PANDA 3D SOFTWARE
 * Copyright (c) Carnegie Mellon University.  All rights reserved.
 *
 * All use of this software is subject to the terms of the revised BSD
 * license.  You should have received a copy of this license along
 * with this source code in a file named "LICENSE."
 *
 * @file hashGenerator.h
 * @author drose
 * @date 2001-03-22
 */
 
#ifndef DCHASHGENERATOR_H
#define DCHASHGENERATOR_H
 
#include "dcbase.h"
#include "primeNumberGenerator.h"
 
/**
 * This class generates an arbitrary hash number from a sequence of ints.
 */
class EXPCL_DIRECT_DCPARSER HashGenerator {
public:
  HashGenerator();
 
  void add_int(int num);
  void add_string(const std::string &str);
  void add_blob(const vector_uchar &bytes);
 
  unsigned long get_hash() const;
 
private:
  long _hash;
  int _index;
  PrimeNumberGenerator _primes;
};
 
#endif