alphaformconcrete.hpp

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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
 
/*
 Copyright (C) 2007 Mark Joshi
 
 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
 <http://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.
*/
 
#ifndef quantlib_alpha_form_concrete_hpp
#define quantlib_alpha_form_concrete_hpp
 
#include <ql/models/marketmodels/models/alphaform.hpp>
#include <vector>
 
namespace QuantLib {
 
    class AlphaFormInverseLinear : public AlphaForm {
      public:
        AlphaFormInverseLinear(std::vector<Time> times, Real alpha = 0.0);
        ~AlphaFormInverseLinear() override = default;
        Real operator()(Integer i) const override;
        void setAlpha(Real alpha_) override;
 
      private:
        std::vector<Time> times_;
        Real alpha_;
    };
 
    class AlphaFormLinearHyperbolic : public AlphaForm {
      public:
        AlphaFormLinearHyperbolic(std::vector<Time> times, Real alpha = 0.0);
        ~AlphaFormLinearHyperbolic() override = default;
        Real operator()(Integer i) const override;
        void setAlpha(Real alpha_) override;
 
      private:
        std::vector<Time> times_;
        Real alpha_;
    };
 
}
 
#endif