/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*

 Copyright (C) 2008 Andreas Gaida

 Copyright (C) 2008 Ralph Schreyer

 Copyright (C) 2008 Klaus Spanderen

 This file is part of QuantLib, a free-software/open-source library

 for financial quantitative analysts and developers - http://quantlib.org/

 QuantLib is free software: you can redistribute it and/or modify it

 under the terms of the QuantLib license.  You should have received a

 copy of the license along with this program; if not, please email

 <quantlib-dev@lists.sf.net>. The license is also available online at

 <https://www.quantlib.org/license.shtml>.

 This program is distributed in the hope that it will be useful, but WITHOUT

 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

 FOR A PARTICULAR PURPOSE.  See the license for more details.

*/

/*! \file fdm1dmesher.hpp

    \brief One-dimensional simple FDM mesher object working on an index

*/

#ifndef quantlib_fdm_1d_mesher_hpp

#define quantlib_fdm_1d_mesher_hpp

#include <ql/types.hpp>

#include <vector>

namespace QuantLib {

    class Fdm1dMesher {

      public:

        explicit Fdm1dMesher(Size size)

        : locations_(size), dplus_(size), dminus_(size) {}

        virtual ~Fdm1dMesher() = default;

        Size size() const { return locations_.size(); }

        Real dplus(Size index) const {return dplus_[index];}

        Real dminus(Size index) const {return dminus_[index];}

        Real location(Size index) const {return locations_[index];}

        const std::vector<Real>& locations() const {return locations_;}

      protected:

        std::vector<Real> locations_;

        std::vector<Real> dplus_, dminus_;

    };

}

#endif