c_valid_nth_kday_p 2312 ext/date/date_core.c 	r = c_valid_nth_kday_p(FIX2INT(y), m, n, k, sg, rm, rn, rk, &jd, ns);
c_valid_nth_kday_p 2325 ext/date/date_core.c 	r = c_valid_nth_kday_p(*ry, m, n, k, style, rm, rn, rk, rjd, ns);