73 enum { atime_shift = CHAR_BIT * sizeof(time_t) - 2 };
74 static time_t const absolute_min_time =
75   ((time_t) -1 < 0
76    ? (- ((time_t) ~ (time_t) 0 < 0)
77       - (((time_t) 1 << atime_shift) - 1 + ((time_t) 1 << atime_shift)))
79 static time_t const absolute_max_time =
80   ((time_t) -1 < 0
81    ? (((time_t) 1 << atime_shift) - 1 + ((time_t) 1 << atime_shift))
91 static time_t hunt(timezone_t, time_t, time_t, bool);
92 static void show(timezone_t, char *, time_t, bool);
93 static void showextrema(timezone_t, char *, time_t, struct tm *, time_t);
94 static void showtrans(char const *, struct tm const *, time_t, char const *,
97 ATTRIBUTE_PURE_114833 static time_t yeartot(intmax_t);
176 gmtime_r(time_t *tp, struct tm *tmp)  in gmtime_r()
203 localtime_r(time_t *tp, struct tm *tmp)  in localtime_r()
217 localtime_rz(ATTRIBUTE_MAYBE_UNUSED timezone_t rz, time_t *tp, struct tm *tmp)  in localtime_rz()
225 static time_t
335 my_gmtime_r(time_t *tp, struct tm *tmp)  in my_gmtime_r()
345 my_localtime_rz(timezone_t tz, time_t *tp, struct tm *tmp)  in my_localtime_rz()
350 		register time_t	t;  in my_localtime_rz()
472 	register time_t		cutlotime;  in main()
473 	register time_t		cuthitime;  in main()
474 	time_t			now;  in main()
592 		time_t t;  in main()
612 				time_t newt = cutlotime;  in main()
629 		  time_t newt = ((t < absolute_max_time - SECSPERDAY / 2  in main()
658 			time_t newt = absolute_max_time;  in main()
676 static time_t
680 	register time_t		t;  in yeartot()
726 static time_t
727 hunt(timezone_t tz, time_t lot, time_t hit, bool only_ok)  in hunt()
746 		time_t t = (rem_sum == 2) - (rem_sum < 0) + lot / 2 + hit / 2;  in hunt()
815 gmtoff(struct tm const *a, ATTRIBUTE_MAYBE_UNUSED time_t *t,  in gmtoff()
839 show(timezone_t tz, char *zone, time_t t, bool v)  in show()
884 showextrema(timezone_t tz, char *zone, time_t lo, struct tm *lotmp, time_t hi)  in showextrema()
887   time_t t, boundary = hunt(tz, lo, hi, true);  in showextrema()
987 format_utc_offset(char *buf, ptrdiff_t size, struct tm const *tm, time_t t)  in format_utc_offset()
1059 	  struct tm const *tm, time_t t, char const *ab, char const *zone_name)  in istrftime()
1136 showtrans(char const *time_fmt, struct tm const *tm, time_t t, char const *ab,  in showtrans()
1183 	  _Generic(+ (time_t) 0,  in tformat()
1190 	fmt = _Generic((time_t) 0,  in tformat()
1196 	if (0 > (time_t) -1) {		/* signed */  in tformat()
1197 		if (sizeof(time_t) == sizeof(intmax_t))  in tformat()
1199 		if (sizeof(time_t) > sizeof(long))  in tformat()
1201 		if (sizeof(time_t) > sizeof(int))  in tformat()
1206 	if (sizeof(time_t) == sizeof(uintmax_t))  in tformat()
1209 	if (sizeof(time_t) > sizeof(unsigned long))  in tformat()
1211 	if (sizeof(time_t) > sizeof(unsigned int))  in tformat()