text: // Copyright (c) 2013-2019 Simon Frasch, Anton Kozhevnikov, Thomas Schulthess
  // All rights reserved.
  //
  // Redistribution and use in source and binary forms, with or without modification, are permitted provided that
  // the following conditions are met:
  //
  // 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
  //    following disclaimer.
  // 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions
  //    and the following disclaimer in the documentation and/or other materials provided with the distribution.
  //
  // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
  // WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  // PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
  // ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  /** \file mixer_functions.hpp
   *
   *  \brief Contains declarations of functions required for mixing.
   */
  
  #ifndef __MIXER_FUNCTIONS_HPP__
  #define __MIXER_FUNCTIONS_HPP__
  
  #include "function3d/periodic_function.hpp"
  #include "SDDK/memory.hpp"
  #include "mixer/mixer.hpp"
  #include "density/paw_density.hpp"
  #include "hubbard/hubbard_matrix.hpp"
  
  namespace sirius {
  
  namespace mixer {
  
  FunctionProperties<Periodic_function<double>> periodic_function_property();
  
  FunctionProperties<Periodic_function<double>> periodic_function_property_modified(bool use_coarse_gvec__);
  
  FunctionProperties<sddk::mdarray<double_complex, 4>> density_function_property();
  
  FunctionProperties<paw_density> paw_density_function_property();
  
  FunctionProperties<Hubbard_matrix> hubbard_matrix_function_property();
  
  } // namespace mixer
  
  } // namespace sirius
  
  #endif
  