grid_tools_cache_update_flags.h

// ---------------------------------------------------------------------
//
// Copyright (C) 2017 by the deal.II authors
//
// This file is part of the deal.II library.
//
// The deal.II library is free software; you can use it, redistribute
// it, and/or modify it under the terms of the GNU Lesser General
// Public License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// The full text of the license can be found in the file LICENSE.md at
// the top level directory of deal.II.
//
// ---------------------------------------------------------------------

#ifndef dealii_grid_tria_info_cache_update_flags_h
#define dealii_grid_tria_info_cache_update_flags_h


#include <deal.II/base/config.h>

DEAL_II_NAMESPACE_OPEN

namespace GridTools
{
  enum CacheUpdateFlags
  {
    update_nothing = 0x00,

    update_vertex_to_cell_map = 0x01,

    update_vertex_to_cell_centers_directions =
      update_vertex_to_cell_map | 0x0002,

    update_vertex_kdtree = 0x04,

    update_used_vertices = 0x08,

    update_all = 0xFF,
  };


  template <class StreamType>
  inline StreamType &
  operator<<(StreamType &s, const CacheUpdateFlags u)
  {
    s << " CacheUpdateFlags";
    if (u & update_vertex_to_cell_map)
      s << "|vertex_to_cell_map";
    if (u & update_vertex_to_cell_centers_directions)
      s << "|vertex_to_cells_centers_directions";
#ifdef DEAL_II_WITH_NANOFLANN
    if (u & update_vertex_kdtree)
      s << "|vertex_kdtree";
#endif
    return s;
  }


  inline CacheUpdateFlags
  operator|(const CacheUpdateFlags f1, const CacheUpdateFlags f2)
  {
    return static_cast<CacheUpdateFlags>(static_cast<unsigned int>(f1) |
                                         static_cast<unsigned int>(f2));
  }

  inline CacheUpdateFlags
  operator~(const CacheUpdateFlags f1)
  {
    return static_cast<CacheUpdateFlags>(static_cast<unsigned int>(f1) ^
                                         static_cast<unsigned int>(update_all));
  }



  inline CacheUpdateFlags &
  operator|=(CacheUpdateFlags &f1, const CacheUpdateFlags f2)
  {
    f1 = f1 | f2;
    return f1;
  }


  inline CacheUpdateFlags operator&(const CacheUpdateFlags f1,
                                    const CacheUpdateFlags f2)
  {
    return static_cast<CacheUpdateFlags>(static_cast<unsigned int>(f1) &
                                         static_cast<unsigned int>(f2));
  }


  inline CacheUpdateFlags &
  operator&=(CacheUpdateFlags &f1, const CacheUpdateFlags f2)
  {
    f1 = f1 & f2;
    return f1;
  }

} // namespace GridTools
DEAL_II_NAMESPACE_CLOSE

#endif