// %flair:license{
// This file is part of the Flair framework distributed under the
// CECILL-C License, Version 1.0.
// %flair:license}
//  created:    2014/03/30
//  filename:   DiscreteTimeVariable.cpp
//
//  author:     Guillaume Sanahuja
//              Copyright Heudiasyc UMR UTC/CNRS 7253
//
//  version:    $Id: $
//
//  purpose:    base class for discrete time variable
//
/*********************************************************************/

#ifndef DISCRETETIMEVARIABLE_H
#define DISCRETETIMEVARIABLE_H

#include <stdlib.h>

namespace flair
{
namespace simulator
{
    template <typename T,size_t size>
    class DiscreteTimeVariable
    {
        public:
            DiscreteTimeVariable(){};
            ~DiscreteTimeVariable(){};
            T& operator[](ssize_t idx)
            {
                if(idx>0) idx=0;
                if(idx<(ssize_t)(-size+1)) idx=-size+1;
                return array[-idx];
            }
            const T&operator[](ssize_t idx) const
            {
                return const_cast<T&>(*this)[idx];
            };
            void Update(void)
            {
                for(int i=size-1;i>0;i--)
                {
                    array[i]=array[i-1];
                }
            }

        private:
            T array[size];

    };
} // end namespace simulator
} // end namespace flair
#endif // DISCRETETIMEVARIABLE_H