computeHashValue()

unsigned int PolynomialRing::computeHashValue ( const ring_elem a ) const

virtual

Implements Ring.

Definition at line 214 of file polyring.cpp.

{
  unsigned int hash = 0;
  unsigned int seed1 = 103;
  unsigned int seed2 = 347654;
  for (Nterm& t : a.poly_val)
    {
      unsigned int hash1 = getCoefficientRing()->computeHashValue(t.coeff);
      unsigned int hash2 = getMonoid()->computeHashValue(t.monom);
      hash += seed1 * hash1 + seed2 * hash2;
      seed1 += 463633;
      seed2 += 7858565;
    }
  return hash;
}

References Nterm::coeff, Monoid::computeHashValue(), Ring::computeHashValue(), getCoefficientRing(), getMonoid(), MutableEngineObject::hash(), Nterm::monom, and ring_elem::poly_val.