00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // INCL++ intra-nuclear cascade model 00027 // Pekka Kaitaniemi, CEA and Helsinki Institute of Physics 00028 // Davide Mancusi, CEA 00029 // Alain Boudard, CEA 00030 // Sylvie Leray, CEA 00031 // Joseph Cugnon, University of Liege 00032 // 00033 #define INCLXX_IN_GEANT4_MODE 1 00034 00035 #include "globals.hh" 00036 00046 #ifndef G4INCLROOTFINDER_HH_ 00047 #define G4INCLROOTFINDER_HH_ 00048 00049 #include <utility> 00050 #include "G4INCLIFunction1D.hh" 00051 00052 namespace G4INCL { 00053 00054 class RootFunctor : public IFunction1D { 00055 public: 00056 virtual void cleanUp(const G4bool success) const = 0; 00057 virtual ~RootFunctor() {}; 00058 protected: 00059 RootFunctor(const G4double x0, const G4double x1) : 00060 IFunction1D(x0, x1) 00061 {}; 00062 }; 00063 00064 class RootFinder { 00065 public: 00077 static G4bool solve(RootFunctor const * const f, const G4double x0); 00078 00083 static std::pair<G4double,G4double> const &getSolution() { return RootFinder::solution; } 00084 00085 private: 00087 static std::pair<G4double,G4double> solution; 00088 00099 static std::pair<G4double,G4double> bracketRoot(RootFunctor const * const f, const G4double x0); 00100 00102 static const G4int maxIterations=50; 00103 00105 static const G4double toleranceY; 00106 00107 protected: 00108 RootFinder() {}; 00109 ~RootFinder() {}; 00110 00111 }; 00112 } 00113 #endif /* G4INCLROOTFINDER_HH_ */