mult_row()

void Ring::mult_row	(	vec &	v,
		const ring_elem	r,
		int	i,
		bool	opposite_mult ) const

Definition at line 440 of file ring-vecs.cpp.

{
  vecterm head;
  head.next = v;
  for (vec p = &head; p->next != nullptr; p = p->next)
    if (p->next->comp < i)
      break;
    else if (p->next->comp == i)
      {
        ring_elem c;
        if (opposite_mult)
          c = mult(p->next->coeff, r);
        else
          c = mult(r, p->next->coeff);
        p->next->coeff = c;
        if (this->is_zero(p->next->coeff))
          {
            vec tmp = p->next;
            p->next = tmp->next;
            remove_vec_node(tmp);
          }
        break;
      }
  v = head.next;
}

References is_zero(), mult(), vec::next, p, and remove_vec_node().