#pragma once

#include "./numerics/interpolation1d/interpolation1d_base.h"


namespace numerics{
	
	template <typename T>
	struct interp_linear : Base_interp<T> {
		using Base   = Base_interp<T>;
	  	// bring base data members into scope (or use this->xx / this->yy below)
	  	using Base::xx;
	  	using Base::yy;


		interp_linear(const utils::Vector<T> &xv, const utils::Vector<T> &yv): Base_interp<T>(xv, &yv[0], 2){}

		T rawinterp(int64_t j, T x) override{
			if (xx[j]==xx[j+1]){
				return yy[j]; 			// Table is defective, but we can recover.
			}else {
				return (yy[j] + ((x-xx[j])/(xx[j+1]-xx[j]))*(yy[j+1]-yy[j]));
			}
		}

	};

} // namespace numerics