#pragma once

#include <sys/cdefs.h>
#include <sys/types.h>

__BEGIN_DECLS

struct timezone {
    int tz_minuteswest;
    int tz_dsttime;
};

struct tm {
    int tm_sec;    /* Seconds (0-60) */
    int tm_min;    /* Minutes (0-59) */
    int tm_hour;   /* Hours (0-23) */
    int tm_mday;   /* Day of the month (1-31) */
    int tm_mon;    /* Month (0-11) */
    int tm_year;   /* Year - 1900 */
    int tm_wday;   /* Day of the week (0-6, Sunday = 0) */
    int tm_yday;   /* Day in the year (0-365, 1 Jan = 0) */
    int tm_isdst;  /* Daylight saving time */
};

extern long timezone;
extern long altzone;
extern char* tzname[2];
extern int daylight;

int gettimeofday(struct timeval*, struct timezone* tz);
struct tm* localtime(const time_t*);
time_t time(time_t*);
char* ctime(const time_t*);
void tzset();

#define difftime(t1,t0) (double)(t1 - t0)

__END_DECLS