robust.h

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#ifndef PAGMO_PROBLEM_ROBUST_H
#define PAGMO_PROBLEM_ROBUST_H

#include <string>
#include <boost/functional/hash.hpp>
#include <boost/random/normal_distribution.hpp>
#include <boost/random/uniform_real_distribution.hpp>

#include "../serialization.h"
#include "ackley.h"
#include "../types.h"
#include "base_stochastic.h"

namespace pagmo{ namespace problem {


class __PAGMO_VISIBLE robust : public base_stochastic
{
        public:

                //constructors
                robust(const base & = ackley(1),
                           unsigned int trials = 1,
                           const double param_rho = 0.1,
                           unsigned int seed = 0u);
                
                //copy constructor
                robust(const robust &);
                base_ptr clone() const;
                std::string get_name() const;

                void set_rho(double);
                double get_rho() const;

        protected:
                std::string human_readable_extra() const;
                void objfun_impl(fitness_vector &, const decision_vector &) const;
                void compute_constraints_impl(constraint_vector &, const decision_vector &) const;

        private:
                void inject_noise_x(decision_vector &) const;

                friend class boost::serialization::access;
                template <class Archive>
                void serialize(Archive &ar, const unsigned int)
                {
                        ar & boost::serialization::base_object<base_stochastic>(*this);
                        ar & m_original_problem;
                        ar & m_normal_dist;
                        ar & m_uniform_dist;
                        ar & m_trials;
                        ar & m_rho;
                }

                base_ptr m_original_problem;
                mutable boost::normal_distribution<double> m_normal_dist;
                mutable boost::random::uniform_real_distribution<double> m_uniform_dist;
                unsigned int m_trials;
                double m_rho;
};

}} //namespaces

BOOST_CLASS_EXPORT_KEY(pagmo::problem::robust)

#endif // PAGMO_PROBLEM_ROBUST_H