compare_elems()

int PolyRing::compare_elems ( const ring_elem f, const ring_elem g ) const

virtual

Implements Ring.

Definition at line 510 of file poly.cpp.

{
  int cmp;
  Nterm *a = f;
  Nterm *b = g;
  for (;; a = a->next, b = b->next)
    {
      if (a == nullptr)
        {
          if (b == nullptr) return 0;
          return -1;
        }
      if (b == nullptr) return 1;
      if (nvars_ > 0)
        {
          cmp = M_->compare(a->monom, b->monom);
          if (cmp != 0) return cmp;
        }
      cmp = K_->compare_elems(a->coeff, b->coeff);
      if (cmp != 0) return cmp;
    }
}

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