
/*
 Copyright (C) 2003 Ferdinando Ametrano

 This file is part of QuantLib, a free-software/open-source library
 for financial quantitative analysts and developers - http://quantlib.org/

 QuantLib is free software: you can redistribute it and/or modify it under the
 terms of the QuantLib license.  You should have received a copy of the
 license along with this program; if not, please email quantlib-dev@lists.sf.net
 The license is also available online at http://quantlib.org/html/license.html

 This program is distributed in the hope that it will be useful, but WITHOUT
 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 FOR A PARTICULAR PURPOSE.  See the license for more details.
*/

// ===========================================================================
// NOTE: The following copyright notice applies to the original code,
// which was taken from "Monte Carlo Methods in Finance",
// by Peter Jäckel
//
// Copyright (C) 2002 "Monte Carlo Methods in Finance". All rights reserved.
//
// Permission to use, copy, modify, and distribute this software is freely
// granted, provided that this notice is preserved.
// ===========================================================================

/*! \file primenumbers.hpp
    \brief Prime numbers calculator
*/

#ifndef quantlib_primenumbers_h
#define quantlib_primenumbers_h

#include <ql/types.hpp>
#include <vector>

namespace QuantLib {

    //! Prime numbers calculator
    /*! Taken from "Monte Carlo Methods in Finance", by Peter Jäckel
     */
    class PrimeNumbers {
      public:
        //! Get and store one after another.
        static unsigned long get(Size absoluteIndex);
      private:
        PrimeNumbers() {}
        static unsigned long nextPrimeNumber();
        static std::vector<unsigned long> primeNumbers_;
    };

}

#endif
