d_lite_lshift 6063 ext/date/date_core.c return d_lite_lshift(self, n); d_lite_lshift 6097 ext/date/date_core.c return d_lite_lshift(self, f_mul(n, INT2FIX(12))); d_lite_lshift 9353 ext/date/date_core.c rb_define_method(cDate, "<<", d_lite_lshift, 1);