xh_ 189 src/gauche/arith.h u_long xl_ = LO(x), xh_ = HI(x), yl_ = LO(y), yh_ = HI(y); \ xh_ 193 src/gauche/arith.h t2_ = xh_ * yl_; \ xh_ 194 src/gauche/arith.h hi = xh_ * yh_; \