permutationcomputation.h

// Copyright (C) 2020 Matthew Scroggs
// Copyright (C) 2020-2026 Matthew Scroggs and Jørgen S. Dokken
//
// This file is part of DOLFINx (https://www.fenicsproject.org)
//
// SPDX-License-Identifier:    LGPL-3.0-or-later
 
#pragma once
 
#include <cstdint>
#include <vector>
 
namespace dolfinx::mesh
{
class Topology;

constexpr std::uint32_t reversed_cell_bit = std::uint32_t(1) << 31;


std::vector<std::uint8_t> compute_entity_permutations(const Topology& topology,
                                                      int dim, int num_threads);

std::vector<std::uint32_t> compute_cell_permutations(const Topology& topology,
                                                     int num_threads);

std::vector<std::int8_t> compute_cell_orientations(const Topology& topology);
 
} // namespace dolfinx::mesh