RangeArg.hxx

/*
 * Copyright 2003-2018 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef MPD_PROTOCOL_RANGE_ARG_HXX
#define MPD_PROTOCOL_RANGE_ARG_HXX

#include <limits>

struct RangeArg {
	unsigned start, end;

	static constexpr RangeArg All() {
		return { 0, std::numeric_limits<unsigned>::max() };
	}

	constexpr bool operator==(RangeArg other) const noexcept {
		return start == other.start && end == other.end;
	}

	constexpr bool operator!=(RangeArg other) const noexcept {
		return !(*this == other);
	}

	constexpr bool IsAll() const noexcept {
		return *this == All();
	}

	constexpr bool Contains(unsigned i) const noexcept {
		return i >= start && i < end;
	}
};

#endif