valid_commercial_p 2675 ext/date/date_core.c if (!valid_commercial_p(y, w, d, sg, valid_commercial_p 3492 ext/date/date_core.c if (!valid_commercial_p(y, w, d, sg, valid_commercial_p 4011 ext/date/date_core.c if (!valid_commercial_p(y, NUM2INT(w), NUM2INT(d), NUM2DBL(sg), valid_commercial_p 7454 ext/date/date_core.c if (!valid_commercial_p(y, w, d, sg,