IM2_Ring_schur()

const Ring * IM2_Ring_schur

(

const Ring *

R

)

Definition at line 453 of file ring.cpp.

{
  try
    {
      const PolynomialRing *P = R->cast_to_PolynomialRing();
      if (P == nullptr)
        {
          ERROR("Schur ring construction: expected a polynomial ring");
          return nullptr;
        }
      SchurRing *result = SchurRing::create(P);
      intern_polyring(result);
      return result;
  } catch (const exc::engine_error& e)
    {
      ERROR(e.what());
      return nullptr;
  }
}

References Ring::cast_to_PolynomialRing(), SchurRing::create(), ERROR, intern_polyring(), and result().