computeNextNode()

template<typename RT>

void SLEvaluatorConcrete< RT >::computeNextNode ( )

private

Definition at line 189 of file SLP-imp.hpp.

{
  ElementType& v = *vIt;
  switch (*nIt++)
    {
      case SLProgram::MProduct:
        ring().set_from_long(v, 1);
        for (int i = 0; i < *numInputsIt; i++)
          ring().mult(v, v, *(vIt + (*inputPositionsIt++)));
        numInputsIt++;
        break;
      case SLProgram::MSum:
        ring().set_zero(v);
        for (int i = 0; i < *numInputsIt; i++)
          ring().add(v, v, *(vIt + (*inputPositionsIt++)));
        numInputsIt++;
        break;
      case SLProgram::Det:
        {
          int n = static_cast<int>(sqrt(*numInputsIt++));
          DMat<RT> mat(ring(), n, n);
          for (int i = 0; i < n; i++)
            for (int j = 0; j < n; j++)
              ring().set(mat.entry(i, j), *(vIt + (*inputPositionsIt++)));
          DMatLinAlg<RT>(mat).determinant(v);
        }
        break;
      case SLProgram::Divide:
        ring().set(v, *(vIt + (*inputPositionsIt++)));
        ring().divide(v, v, *(vIt + (*inputPositionsIt++)));
        break;
      default:
        std::cerr << "unknown node type\n";
        abort();
    }
}

References SLProgram::Det, DMatLinAlg< RingType >::determinant(), SLProgram::Divide, DMat< ACoeffRing >::entry(), SLEvaluator::inputPositionsIt, SLProgram::MProduct, SLProgram::MSum, SLEvaluator::nIt, SLEvaluator::numInputsIt, ring(), and vIt.

Referenced by evaluate().