mersenne-twister.h

/*
** Copyright 2007-2024, RTE (https://www.rte-france.com)
** See AUTHORS.txt
** SPDX-License-Identifier: MPL-2.0
** This file is part of Antares-Simulator,
** Adequacy and Performance assessment for interconnected energy networks.
**
** Antares_Simulator is free software: you can redistribute it and/or modify
** it under the terms of the Mozilla Public Licence 2.0 as published by
** the Mozilla Foundation, either version 2 of the License, or
** (at your option) any later version.
**
** Antares_Simulator 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
** Mozilla Public Licence 2.0 for more details.
**
** You should have received a copy of the Mozilla Public Licence 2.0
** along with Antares_Simulator. If not, see <https://opensource.org/license/mpl-2-0/>.
*/
#ifndef __LIB_ANTARES_RANDOM_MERSENNE_H__
#define __LIB_ANTARES_RANDOM_MERSENNE_H__
 
#include <yuni/yuni.h>
#include <yuni/core/math/random/distribution.h>
 
namespace Antares
{
class MersenneTwister final
{
public:
    // Name of the distribution
    static const char* Name()
    {
        return "Mersenne Twister random numbers";
    }
 
    using Value = double;
 
    enum
    {
        defaultSeed = 5489,
    };
 
public:
 
 
    MersenneTwister();
    ~MersenneTwister();
 
 
 
    void reset();
    void reset(uint seed);
 
 
 
    Value next() const;
 
 
 
    static Value min();
    static Value max();
 
    Value operator()();
 
private:
    enum
    {
        periodN = 624,
        periodM = 397,
    };
 
    mutable uint32_t mt[periodN];
    //
    mutable int32_t mti;
 
}; // class MersenneTwister
 
} // namespace Antares
 
#endif // __LIB_ANTARES_RANDOM_MERSENNE_H__