valid_sg         2434 ext/date/date_core.c     valid_sg(sg);
valid_sg         2498 ext/date/date_core.c     valid_sg(sg);
valid_sg         2588 ext/date/date_core.c     valid_sg(sg);
valid_sg         2669 ext/date/date_core.c     valid_sg(sg);
valid_sg         2754 ext/date/date_core.c     valid_sg(sg);