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Erlang.hpp

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 * This file is part of openWNS (open Wireless Network Simulator)
 * _____________________________________________________________________________
 *
 * Copyright (C) 2004-2007
 * Chair of Communication Networks (ComNets)
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 * openWNS is free software; you can redistribute it and/or modify it under the
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 * Free Software Foundation;
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 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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#ifndef WNS_DISTRIBUTION_ERLANG_HPP
#define WNS_DISTRIBUTION_ERLANG_HPP

#include <WNS/distribution/Distribution.hpp>
#include <WNS/distribution/Uniform.hpp>

namespace wns { namespace distribution {
    class Erlang :
        public Distribution,
        public IHasMean
    {
    public:
        explicit
        Erlang(const double mean, const int k, 
            wns::rng::RNGen* rng = wns::simulator::getRNG());

        explicit
        Erlang(const pyconfig::View& config);

        explicit
        Erlang(wns::rng::RNGen* rng, const pyconfig::View& config);

        virtual
        ~Erlang();

        virtual double
        operator()();

        virtual double
        getMean() const;

        virtual std::string
        paramString() const;

    private:
        double rate_;
        unsigned long int shape_;
        StandardUniform dis_;
    }; // Erlang
} // distribution
} // wns

#endif // NOT defined WNS_DISTRIBUTION_ERLANG_HPP

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