00001 /* @HEADER@ */ 00002 // ************************************************************************ 00003 // 00004 // Sundance 00005 // Copyright (2005) Sandia Corporation 00006 // 00007 // Copyright (year first published) Sandia Corporation. Under the terms 00008 // of Contract DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government 00009 // retains certain rights in this software. 00010 // 00011 // This library is free software; you can redistribute it and/or modify 00012 // it under the terms of the GNU Lesser General Public License as 00013 // published by the Free Software Foundation; either version 2.1 of the 00014 // License, or (at your option) any later version. 00015 // 00016 // This library is distributed in the hope that it will be useful, but 00017 // WITHOUT ANY WARRANTY; without even the implied warranty of 00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00019 // Lesser General Public License for more details. 00020 // 00021 // You should have received a copy of the GNU Lesser General Public 00022 // License along with this library; if not, write to the Free Software 00023 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00024 // USA 00025 // Questions? Contact Kevin Long (krlong@sandia.gov), 00026 // Sandia National Laboratories, Livermore, California, USA 00027 // 00028 // ************************************************************************ 00029 /* @HEADER@ */ 00030 /* 00031 * FunctionalEvaluatorBase.hpp 00032 * 00033 * Created on: Jun 20, 2011 00034 * Author: benk 00035 */ 00036 00037 #ifndef FUNCTIONALEVALUATORBASE_HPP_ 00038 #define FUNCTIONALEVALUATORBASE_HPP_ 00039 00040 #include "SundanceExpr.hpp" 00041 00042 namespace Sundance 00043 { 00044 00045 /** Abstract interface for the FunctionalEvaluator class 00046 * it contains only empty functions */ 00047 class FunctionalEvaluatorBase 00048 { 00049 public: 00050 /** */ 00051 FunctionalEvaluatorBase() {;} 00052 00053 /** */ 00054 virtual double evaluate() const { return 0.0; } 00055 00056 /** */ 00057 virtual Expr evalGradient(double& value) const { return Expr(0.0); } 00058 00059 /** */ 00060 virtual double fdGradientCheck(double h) const { return 0.0; } 00061 }; 00062 } 00063 #endif /* FUNCTIONALEVALUATORBASE_HPP_ */