Fper.h

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#ifndef FPER_H
#define FPER_H
#include<utility>
#include<vector>
#include<string>
namespace etvo
{

class Fper
{
    public:       
        Fper();  
        Fper(int dP,int codP,const std::vector<int> & seq);

        void setSeq(const std::vector<int> & seq);

        void setPeriodicity(int dP,int codP);

        std::pair<int, int> getPeriodicity() const;
        
        int getValue(int arg) const;     

        int operator()(int arg) const;

        int getDomPer() const;
        int getCodomPer() const;

        bool operator==(const Fper & f) const;
        bool operator!=(const Fper & f) const;
        bool operator<=(const Fper & f) const;
        bool operator>=(const Fper & f) const;
              
      
        Fper extendBy(unsigned mul) const;

        Fper composeWith(const Fper & f) const;

        Fper sum(const Fper & f) const;

        void reduce();

        void canon();

        double getyMax0() const;
        double getyMin0() const;

        virtual std::string toString() const;
                
       static void setAutoReduction(bool on);
       static bool getAutoReductionState();

    protected:
        bool reduceBy(unsigned div);
        static bool _autoreduction;

        void updateYMinMax();
        bool isNodecreasing(const std::vector<int> & v);

        int _domP;  
        int _codomP;  
        std::vector<int> _seq;   

        double _yMax0;
        double _yMin0;      
};

    std::ostream & operator<<(std::ostream & f,const Fper & );
}
#endif // FPER_H