percent.hpp

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/*
Copyright© 2014 Akihiro Nishimura

This software is released under the MIT License.
http://opensource.org/licenses/mit-license.php
*/

#ifndef SIG_UTIL_PERCENT_HPP
#define SIG_UTIL_PERCENT_HPP

#include "../sigutil.hpp"

#if SIG_ENABLE_BOOST
#include <boost/serialization/serialization.hpp>
#endif


namespace sig
{


class Percent
{
    int percent_;

public:
    explicit Percent(int percent) : percent_(percent){}

    int get_percent() const{ return percent_; }
    double get_double() const{ return percent_ * 0.01; }

    static Percent const& unit(){ static const Percent unit(100); return unit; }

    Percent operator=(Percent src){ percent_ = src.percent_; return *this; }
    Percent operator=(int src){ percent_ = src; return *this; }

    bool operator==(Percent obj) const{ return percent_ == obj.percent_; }

    bool operator!=(Percent obj) const{ return percent_ != obj.percent_; }

#if SIG_ENABLE_BOOST
private:
    friend class boost::serialization::access;

    template <class Archive>
    void serialize(Archive& ar, unsigned int version)
    {
        ar & percent_;
    }

    template <class Archive>
    friend void save_construct_data(Archive & ar, Percent const* p, unsigned int version){};

    template <class Archive>
    friend void load_construct_data(Archive & ar, Percent* p, unsigned int version){
        ::new(p) Percent(0);
    }
#endif
};

}
#endif