ObjFW  Diff

		@throw [OFOutOfRangeException exceptionWithClass: isa];	\
									\
	return tm->field;
# endif
#endif

static int month_to_day_of_year[12] = {
	0,
	31,
	31 + 28,
	31 + 28 + 31,
	31 + 28 + 31 + 30,
	31 + 28 + 31 + 30 + 31,
	31 + 28 + 31 + 30 + 31 + 30,
	31 + 28 + 31 + 30 + 31 + 30 + 31,
	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31,
	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30,
	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31,
	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30,
	31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31
};

@implementation OFDate
#if (!defined(HAVE_GMTIME_R) || !defined(HAVE_LOCALTIME_R)) && \
    defined(OF_THREADS)
+ (void)initialize
{

#ifdef STRUCT_TM_HAS_TM_GMTOFF
		if (tm.tm_gmtoff != 0)
			@throw [OFInvalidFormatException
			    exceptionWithClass: isa];
#endif

		/* Years */
		seconds = (time_t)(tm.tm_year - 70) * 31536000;
		/* Leap years */
		seconds += (((tm.tm_year + 1900) / 4) - 492) * 86400;
		seconds -= (((tm.tm_year + 1900) / 100) - 19) * 86400;
		seconds += (((tm.tm_year + 1900) / 400) - 4) * 86400;
		seconds = (int64_t)(tm.tm_year - 70) * 31536000;
		/* Days of leap years, excluding the year to look at */
		seconds += (((tm.tm_year + 1899) / 4) - 492) * 86400;
		seconds -= (((tm.tm_year + 1899) / 100) - 19) * 86400;
		seconds += (((tm.tm_year + 1899) / 400) - 4) * 86400;
		/* Leap day */
		if (tm.tm_mon >= 2 && (((tm.tm_year + 1900) % 4 == 0 &&
		    (tm.tm_year + 1900) % 100 != 0) ||
		    (tm.tm_year + 1900) % 400 == 0))
			seconds += 86400;
		/* Months */
		if (tm.tm_mon < 0 || tm.tm_mon > 12)
			@throw [OFInvalidFormatException
			    exceptionWithClass: isa];
		seconds += month_to_day_of_year[tm.tm_mon - 1] * 86400;
		seconds += month_to_day_of_year[tm.tm_mon] * 86400;
		/* Days */
		seconds += (tm.tm_mday - 1) * 86400;
		/* Hours */
		seconds += tm.tm_hour * 3600;
		/* Minutes */
		seconds += tm.tm_min * 60;
		/* Seconds */