jacobianInterface.hpp

/*
 * CoDiPack, a Code Differentiation Package
 *
 * Copyright (C) 2015-2024 Chair for Scientific Computing (SciComp), University of Kaiserslautern-Landau
 * Homepage: http://scicomp.rptu.de
 * Contact:  Prof. Nicolas R. Gauger (codi@scicomp.uni-kl.de)
 *
 * Lead developers: Max Sagebaum, Johannes Blühdorn (SciComp, University of Kaiserslautern-Landau)
 *
 * This file is part of CoDiPack (http://scicomp.rptu.de/software/codi).
 *
 * CoDiPack is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * CoDiPack 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 GNU General Public License for more details.
 * You should have received a copy of the GNU
 * General Public License along with CoDiPack.
 * If not, see <http://www.gnu.org/licenses/>.
 *
 * For other licensing options please contact us.
 *
 * Authors:
 *  - SciComp, University of Kaiserslautern-Landau:
 *    - Max Sagebaum
 *    - Johannes Blühdorn
 *    - Former members:
 *      - Tim Albring
 */
#pragma once
 
#include "../../config.h"
#include "../../misc/macros.hpp"
#include "../../traits/misc/enableIfHelpers.hpp"
 
namespace codi {
 
  template<typename T_T>
  struct JacobianInterface {
    public:
 
      using T = CODI_DD(T_T, double);  
 
      size_t getM() const;  
      size_t getN() const;  
 
      T operator()(size_t const i, size_t const j) const;
 
      T& operator()(size_t const i, size_t const j);
 
      void resize(size_t const m, size_t const n);  
      size_t size() const;                          
 
      void setLogic(size_t const i, size_t const j, T const& v);
  };
 
  template<typename Stream, typename Jac, typename = enable_if_base_of<Jac, JacobianInterface<typename Jac::T>>>
  Stream& operator<<(Stream& out, CODI_DD(Jac, CODI_T(JacobianInterface<double>)) const& jacobian) {
    out << "[";
    for (size_t i = 0; i < jacobian.getM(); ++i) {
      if (i != 0) {
        out << " ";  // Padding for the '['.
      }
 
      for (size_t j = 0; j < jacobian.getN(); ++j) {
        if (j != 0) {
          out << ", ";
        }
        out << jacobian(i, j);
      }
 
      if (i + 1 < jacobian.getM()) {
        out << ";\n";
      } else {
        out << "]";
      }
    }
 
    return out;
  }
}