/*******************************************************************************
 * RetroShare C++23 backwards compatibility utilities                          *
 *                                                                             *
 * libretroshare: retroshare core library                                      *
 *                                                                             *
 * Copyright (C) 2021-2022  Gioacchino Mazzurco <gio@eigenlab.org>             *
 * Copyright (C) 2021-2022  Asociación Civil Altermundi <info@altermundi.net>  *
 *                                                                             *
 * This program 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 3 of the          *
 * License, or (at your option) any later version.                             *
 *                                                                             *
 * This program 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 this program. If not, see <https://www.gnu.org/licenses/>.       *
 *                                                                             *
 *******************************************************************************/

#pragma once

#include <utility>

#if !defined(__cpp_lib_to_underlying)
#	include <type_traits>
namespace std
{
template <class Enum>
constexpr underlying_type_t<Enum> to_underlying(Enum e) noexcept
{ return static_cast<std::underlying_type_t<Enum>>(e); }
}
#endif // !defined(__cpp_lib_to_underlying)