1 /* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ 2 3 /* 4 Copyright (C) 2006 Joseph Wang 5 6 This file is part of QuantLib, a free-software/open-source library 7 for financial quantitative analysts and developers - http://quantlib.org/ 8 9 QuantLib is free software: you can redistribute it and/or modify it 10 under the terms of the QuantLib license. You should have received a 11 copy of the license along with this program; if not, please email 12 <quantlib-dev@lists.sf.net>. The license is also available online at 13 <http://quantlib.org/license.shtml>. 14 15 This program is distributed in the hope that it will be useful, but WITHOUT 16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 17 FOR A PARTICULAR PURPOSE. See the license for more details. 18 */ 19 20 /*! \file curve.hpp 21 \brief Curve 22 */ 23 24 #ifndef quantlib_curve_hpp 25 #define quantlib_curve_hpp 26 27 #include <ql/types.hpp> 28 #include <functional> 29 30 namespace QuantLib { 31 32 //! abstract curve class 33 class Curve { 34 public: 35 typedef Real argument_type; 36 typedef Real result_type; ~Curve()37 virtual ~Curve() {} 38 virtual Real operator()(Real x) const = 0; 39 }; 40 41 } 42 43 44 #endif 45