d_lite_rshift    6029 ext/date/date_core.c     return d_lite_rshift(self, f_negate(other));
d_lite_rshift    6046 ext/date/date_core.c     return d_lite_rshift(self, n);
d_lite_rshift    6080 ext/date/date_core.c     return d_lite_rshift(self, f_mul(n, INT2FIX(12)));
d_lite_rshift    9352 ext/date/date_core.c     rb_define_method(cDate, ">>", d_lite_rshift, 1);