/*
 * time.h - date and time
 */
/* $Header$ */

#if	!defined(__TIME_HEADER__)
#define	__TIME_HEADER__

#if	!defined(NULL)
#define	NULL		0
#endif	/* NULL */

#if	defined(__BSD4_2)
#define	CLOCKS_PER_SEC		1000000		/* ticks per second */
#else
#define	CLOCKS_PER_SEC		60
#endif	/* __BSD4_2 */

#if	!defined(__TYPE_SIZE__)
#define	__TYPE_SIZE__
typedef unsigned int	size_t;		/* type returned by sizeof */
#endif	/* __TYPE_SIZE__ */

typedef	unsigned long	time_t;		/* type returned by TOD clock */
typedef	unsigned long	clock_t;	/* type returned by real time clock */

struct tm {
	int	tm_sec;			/* seconds after the minute - [0, 59] */
	int	tm_min;			/* minutes after the hour - [0, 59] */
	int	tm_hour;		/* hours since midnight - [0, 28] */
	int	tm_mday;		/* day of the month - [1, 31] */
	int	tm_mon;			/* months since January - [0, 11] */
	int	tm_year;		/* years since 1900 */
	int	tm_wday;		/* days since Sunday - [0, 6] */
	int	tm_yday;		/* days since January 1 - [0, 365] */
	int	tm_isdst;		/* Daylight Saving Time flag */
};

clock_t		clock(void);
double		difftime(time_t __time1, time_t __time0);
time_t		mktime(struct tm *__timeptr);
time_t		time(time_t *__timeptr);
char		*asctime(const struct tm *__timeptr);
char		*ctime(const time_t *__timer);
struct	tm	*gmtime(const time_t *__timer);
struct	tm	*localtime(const time_t *__timer);
size_t		strftime(char *__s, size_t __maxsize,
			const char *__format,
			const struct tm *__timeptr);

#if	defined(__USG) || defined(_POSIX_SOURCE)
void	tzset(void);
#endif	/* __USG || _POSIX_SOURCE */

#endif	/* __TIME_HEADER__ */