timeval.hpp

/* $Id$

   This file is a part of ponder, a English/American checkers game.

   Copyright (c) 2006, 2007 Quux Information.
                     Gong Jie <neo@quux.me>

   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; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
   Boston, MA 02110-1301, USA.
 */
/** @file timeval.hpp
 *  @brief Time calculate.
 */

#ifndef __TIMEVAL_HPP__
#define __TIMEVAL_HPP__

extern "C"
{
	#include <sys/time.h>
}
#include <ctime>

namespace checkers
{
	/// Process struct timeval (as specified  in <sys/time.h>).
	namespace timeval
	{
		/// Get the time of day.
		struct timeval now(void);
	}

	/// Unary minus.
	struct timeval operator -(const struct timeval& rhs);
	/// Assignment by sum.
	struct timeval& operator +=(struct timeval& lhs,
		const struct timeval& rhs);
	/// Assignment by sum.
	inline struct timeval& operator +=(struct timeval& lhs, time_t rhs);
	/// Assignment by difference.
	inline struct timeval& operator -=(struct timeval& lhs,
		const struct timeval& rhs);
	/// Assignment by difference.
	inline struct timeval& operator -=(struct timeval& lhs, time_t rhs);
	/// Addition.
	inline struct timeval operator +(const struct timeval& lhs,
		const struct timeval& rhs);
	/// Addition.
	inline struct timeval operator +(const struct timeval& lhs, time_t rhs);
	/// Subtraction.
	inline struct timeval operator -(const struct timeval& lhs,
		const struct timeval& rhs);
	/// Subtraction.
	inline struct timeval operator -(const struct timeval& lhs, time_t rhs);
	/// Relational ``greater than''.
	inline bool operator >(const struct timeval& lhs,
		const struct timeval& rhs);
	/// Relational ``less than''.
	inline bool operator <(const struct timeval& lhs,
		const struct timeval& rhs);
}

#include "timeval_i.hpp"
#endif // __TIMEVAL_HPP__
// End of file