fixpoint_div
fixpoint_div(&tmp, &l_tot, &W_tot);
fixpoint_div(&x, &x, &(cb)->p);
fixpoint_div(&fval, &fval, &x_recv);
fixpoint_div(&fval, &fval, &t_rtt);
fixpoint_div(&x, &x, fval2);
fixpoint_div(&x1, &x1, &(ccbp)->x); \
struct fixpoint *fixpoint_div(struct fixpoint *, const struct fixpoint *,
fixpoint_div(&x, &x, p);
fixpoint_div(&v, &v, &(cb->x));
fixpoint_div(&v, &v, &cb->x);
fixpoint_div(&(cb)->x_recv, &x, &y);
fixpoint_div(&x, &x, &(cb->x));