rawRingM2FreeAlgebra()

const Ring * rawRingM2FreeAlgebra	(	const Ring *	coefficientRing,
		M2_ArrayString	names,
		const Ring *	degreeRing,
		M2_arrayint	degrees,
		M2_arrayint	wtvecs,
		M2_arrayint	heftVector )

Definition at line 223 of file ring.cpp.

{
  try {
    if (coefficientRing == nullptr)
      {
        ERROR("internal error: expected non-null Ring!");
        return nullptr;
      }
    const PolynomialRing *P = degreeRing->cast_to_PolynomialRing();
    if (P == nullptr)
      {
        ERROR("expected polynomial ring");
        return nullptr;
      }
    const M2FreeAlgebra* result = M2FreeAlgebra::create(coefficientRing,
                                                        M2_ArrayString_to_stdvector(names),
                                                        P,
                                                        M2_arrayint_to_stdvector<int>(degrees),
                                                        M2_arrayint_to_stdvector<int>(wtvecs),
                                                        M2_arrayint_to_stdvector<int>(heftVector));
    //intern_polyring(result); // we might want to intern our rings (to register a finalizer with the gc)
    return result;
  }
  catch (exc::engine_error& e) {
    ERROR(e.what());
    return nullptr;
  }
}

References M2FreeAlgebra::create(), degreeRing(), ERROR, M2_arrayint_to_stdvector(), M2_ArrayString_to_stdvector(), and result().