yl_ 189 src/gauche/arith.h u_long xl_ = LO(x), xh_ = HI(x), yl_ = LO(y), yh_ = HI(y); \ yl_ 191 src/gauche/arith.h lo = xl_ * yl_; \ yl_ 193 src/gauche/arith.h t2_ = xh_ * yl_; \