initialize_ring()

void Ring::initialize_ring ( long charac, const PolynomialRing * DR = nullptr, const std::vector< int > & heft_vec = {} )

protected

Definition at line 30 of file ring.cpp.

{
  // Remember: if this is a poly ring, the ring is K[M].
  // If this is a basic routine, K = this, M = trivial monoid.
  // If this is a frac field, K = R, M = trivial monoid.
  mCharacteristic = P0;
  if (DR == nullptr)
    degree_ring = PolyRing::get_trivial_poly_ring();
  else
    degree_ring = DR;
  mHeftVector = heft_vector;
 
  _non_unit = ZERO_RINGELEM;
  _isfield = 0;
 
  zeroV = ZERO_RINGELEM;
  oneV = ZERO_RINGELEM;
  minus_oneV = ZERO_RINGELEM;
}

References _isfield, _non_unit, degree_ring, PolyRing::get_trivial_poly_ring(), mCharacteristic, mHeftVector, minus_oneV, oneV, ZERO_RINGELEM, and zeroV.

Referenced by Tower::initialize(), FractionField::initialize_frac(), GF::initialize_GF(), LocalRing::initialize_local(), PolyRing::initialize_poly_ring(), SchurRing2::initialize_SchurRing2(), Z_mod::initialize_Z_mod(), and RingZZ::initialize_ZZ().