tria_orientation.h

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// ------------------------------------------------------------------------
//
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2023 by the deal.II authors
//
// This file is part of the deal.II library.
//
// Part of the source code is dual licensed under Apache-2.0 WITH
// LLVM-exception OR LGPL-2.1-or-later. Detailed license information
// governing the source code and code contributions can be found in
// LICENSE.md and CONTRIBUTING.md at the top level directory of deal.II.
//
// ------------------------------------------------------------------------
 
#ifndef dealii_tria_orientation_h
#define dealii_tria_orientation_h
 
#include <deal.II/base/config.h>
 
#include <deal.II/base/utilities.h>
 
#include <tuple>
 
DEAL_II_NAMESPACE_OPEN
 
namespace internal
{
  inline unsigned char
  combined_face_orientation(const bool face_orientation,
                            const bool face_rotation,
                            const bool face_flip)
  {
    return (face_orientation ? 1 : 0) + (face_rotation ? 2 : 0) +
           (face_flip ? 4 : 0);
  }
 
  inline std::tuple<bool, bool, bool>
  split_face_orientation(const unsigned char combined_face_orientation)
  {
    return {Utilities::get_bit(combined_face_orientation, 0),
            Utilities::get_bit(combined_face_orientation, 1),
            Utilities::get_bit(combined_face_orientation, 2)};
  }
 
 
} // namespace internal
 
 
 
DEAL_II_NAMESPACE_CLOSE
 
#endif