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 at
// the top level of the deal.II distribution.
//
// ---------------------------------------------------------------------

#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;
  }

}
DEAL_II_NAMESPACE_CLOSE

#endif