elem_text_out()

void PolyRing::elem_text_out ( buffer & o, const ring_elem f, bool p_one = true, bool p_plus = false, bool p_parens = false ) const

virtual

Implements Ring.

Reimplemented in SchurRing.

Definition at line 1308 of file poly.cpp.

{
  Nterm *t = f;
  if (t == nullptr)
    {
      o << '0';
      return;
    }
 
  int two_terms = (t->next != nullptr);
 
  int needs_parens = p_parens && two_terms;
  if (needs_parens)
    {
      if (p_plus) o << '+';
      o << '(';
      p_plus = false;
    }
 
  for (t = f; t != nullptr; t = t->next)
    {
      int isone = M_->is_one(t->monom);
      p_parens = !isone;
      bool p_one_this = (isone && needs_parens) || (isone && p_one);
      K_->elem_text_out(o, t->coeff, p_one_this, p_plus, p_parens);
      if (!isone)
        {
          M_->elem_text_out(o, t->monom, p_one_this);
        }
      p_plus = true;
    }
  if (needs_parens) o << ')';
}

References Nterm::coeff, PolynomialRing::K_, PolynomialRing::M_, Nterm::monom, and Nterm::next.