lib/ansi/loc_time.h

   1 /*
   2  * loc_time.h - some local definitions
   3  */
   4 /* $Header$ */
   5
   6 #define YEAR0           1900                    /* the first year */
   7 #define EPOCH_YR        1970            /* EPOCH = Jan 1 1970 00:00:00 */
   8 #define SECS_DAY        (24L * 60L * 60L)
   9 #define LEAPYEAR(year)  (!((year) % 4) && (((year) % 100) || !((year) % 400)))
  10 #define YEARSIZE(year)  (LEAPYEAR(year) ? 366 : 365)
  11 #define FIRSTSUNDAY(timp)       (((timp)->tm_yday - (timp)->tm_wday + 420) % 7)
  12 #define FIRSTDAYOF(timp)        (((timp)->tm_wday - (timp)->tm_yday + 420) % 7)
  13 #define TIME_MAX        ULONG_MAX
  14 #define ABB_LEN         3
  15
  16 extern const int _ytab[2][12];
  17 extern const char *_days[];
  18 extern const char *_months[];
  19
  20 void _tzset(void);
  21 unsigned _dstget(struct tm *timep);
  22
  23 extern long _timezone;
  24 extern long _dst_off;
  25 extern int _daylight;
  26 extern char *_tzname[2];