/*
Low Latency IPC Library for high-speed traffic
Copyright (C) 2019 Michael Fabian Dirks <info@xaymar.com>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero 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 Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/

#pragma once
#include <type_traits>

template<typename Enum>
struct enable_bitmask_operators {
	static const bool enable = false;
};

template<typename Enum>
typename std::enable_if<enable_bitmask_operators<Enum>::enable, Enum>::type operator|(Enum lhs, Enum rhs)
{
	using underlying = typename std::underlying_type<Enum>::type;
	return static_cast<Enum>(static_cast<underlying>(lhs) | static_cast<underlying>(rhs));
}

template<typename Enum>
typename std::enable_if<enable_bitmask_operators<Enum>::enable, Enum>::type operator&(Enum lhs, Enum rhs)
{
	using underlying = typename std::underlying_type<Enum>::type;
	return static_cast<Enum>(static_cast<underlying>(lhs) & static_cast<underlying>(rhs));
}

#define ENABLE_BITMASK_OPERATORS(x)      \
	template<>                           \
	struct enable_bitmask_operators<x> { \
		static const bool enable = true; \
	};