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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
Copyright (C) 2004 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/license.shtml>.
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.
*/
/*! \file seedgenerator.hpp
\brief Random seed generator
*/
#ifndef quantlib_seed_generator_hpp
#define quantlib_seed_generator_hpp
#include <ql/math/randomnumbers/mt19937uniformrng.hpp>
#include <ql/patterns/singleton.hpp>
namespace QuantLib {
//! Random seed generator
/*! Random number generator used for automatic generation of
initialization seeds.
\test correct initialization of the single instance is tested.
*/
class SeedGenerator : public Singleton<SeedGenerator> {
friend class Singleton<SeedGenerator>;
public:
unsigned long get();
private:
SeedGenerator();
void initialize();
MersenneTwisterUniformRng rng_;
};
}
#endif
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