reduce_once
uint32_t r = reduce_once(r_plus_z + ct0);
return reduce_once(ML_DSA_Q + a - b);
p->coeff[j] = reduce_once(w_even + t_odd);
p->coeff[j] = reduce_once(odd + even);
return reduce_once(c); /* 0..q */
out->coeff[i] = reduce_once(lhs->coeff[i] + rhs->coeff[i]);
*curr = reduce_once(*curr + (mask & half_q_plus_1)); \
return reduce_once(remainder);
*peer++ = reduce_once(even - odd + kPrime);
*curr++ = reduce_once(odd + even);
*curr++ = reduce_once(odd + even);
lhs->c[i] = reduce_once(lhs->c[i] + rhs->c[i]);
lhs->c[i] = reduce_once(lhs->c[i] - rhs->c[i] + kPrime);