iso_week_days     368 lib/nstrftime.c static int iso_week_days (int, int);
iso_week_days    1260 lib/nstrftime.c             int days = iso_week_days (tp->tm_yday, tp->tm_wday);
iso_week_days    1266 lib/nstrftime.c                 days = iso_week_days (tp->tm_yday + (365 + __isleap (year - 1)),
iso_week_days    1271 lib/nstrftime.c                 int d = iso_week_days (tp->tm_yday - (365 + __isleap (year)),