File: to_underlying.hpp

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// Copyright Contributors to the DNF5 project.
// Copyright (C) 2022 Red Hat, Inc.
// SPDX-License-Identifier: LGPL-2.0-or-later
//
// This file is part of libdnf: https://github.com/rpm-software-management/libdnf/
//
// Libdnf is free software: you can 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 of the License, or
// (at your option) any later version.
//
// Libdnf is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with libdnf.  If not, see <https://www.gnu.org/licenses/>.

#ifndef LIBDNF5_UTILS_TO_UNDERLYING_HPP
#define LIBDNF5_UTILS_TO_UNDERLYING_HPP

#include <fmt/format.h>

#include <type_traits>

namespace libdnf5::utils {

/// Converts an enumeration to its underlying type.
/// `std::to_underlying` is planned for C++23.
template <class Enum>
constexpr std::underlying_type_t<Enum> to_underlying(Enum e) noexcept {
    return static_cast<std::underlying_type_t<Enum>>(e);
}

}  // namespace libdnf5::utils

#endif  // LIBDNF5_UTILS_TO_UNDERLYING_HPP